This Semi-Annual shareholder report contains important information about Wasatch Core Growth Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$57	1.20%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 57

Expense Ratio, Percent

1.20%

AssetsNet

$ 2,983,053,687

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 17,821,691

InvestmentCompanyPortfolioTurnover

28.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$2,983,053,687
# of Portfolio Holdings	49
Portfolio Turnover Rate	28%
Total Advisory Fees Paid	$17,821,691

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Industrial Machinery & Supplies & Components	11.8%
Building Products	7.0%
Semiconductor Materials & Equipment	6.2%
Managed Health Care	5.2%
Application Software	5.2%
Life Sciences Tools & Services	4.6%
Construction & Engineering	4.1%
Broadline Retail	3.7%
Specialty Chemicals	3.2%
Electronic Manufacturing Services	3.2%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.6%
Other Assets and Liabilities, Net	0.4%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	5.2%
Everus Construction Group, Inc.	4.1%
Camtek Ltd.	3.3%
Balchem Corp.	3.2%
Fabrinet	3.2%
Standex International Corp.	3.2%
Kadant, Inc.	3.0%
Nova Ltd.	2.9%
Federal Signal Corp.	2.9%
SiteOne Landscape Supply, Inc.	2.8%

C000110016

Shareholder Report [Line Items]

Fund Name

Wasatch Core Growth Fund

Class Name

Institutional Class

Trading Symbol

WIGRX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Core Growth Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$51	1.06%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 51

Expense Ratio, Percent

1.06%

AssetsNet

$ 2,983,053,687

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 17,821,691

InvestmentCompanyPortfolioTurnover

28.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$2,983,053,687
# of Portfolio Holdings	49
Portfolio Turnover Rate	28%
Total Advisory Fees Paid	$17,821,691

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Industrial Machinery & Supplies & Components	11.8%
Building Products	7.0%
Semiconductor Materials & Equipment	6.2%
Managed Health Care	5.2%
Application Software	5.2%
Life Sciences Tools & Services	4.6%
Construction & Engineering	4.1%
Broadline Retail	3.7%
Specialty Chemicals	3.2%
Electronic Manufacturing Services	3.2%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.6%
Other Assets and Liabilities, Net	0.4%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	5.2%
Everus Construction Group, Inc.	4.1%
Camtek Ltd.	3.3%
Balchem Corp.	3.2%
Fabrinet	3.2%
Standex International Corp.	3.2%
Kadant, Inc.	3.0%
Nova Ltd.	2.9%
Federal Signal Corp.	2.9%
SiteOne Landscape Supply, Inc.	2.8%

C000097757

Shareholder Report [Line Items]

Fund Name

Wasatch Emerging India Fund

Class Name

Investor Class

Trading Symbol

WAINX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Emerging India Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$75	1.65%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 75

Expense Ratio, Percent

1.65%

AssetsNet

$ 196,742,045

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,264,832

InvestmentCompanyPortfolioTurnover

10.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$196,742,045
# of Portfolio Holdings	26
Portfolio Turnover Rate	10%
Total Advisory Fees Paid	$2,264,832

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Consumer Finance	20.0%
Health Care Facilities	11.4%
Asset Management & Custody Banks	8.2%
Life Sciences Tools & Services	7.8%
Regional Banks	7.2%
Diversified Banks	5.9%
Building Products	5.5%
Pharmaceuticals	5.2%
Computer & Electronics Retail	4.7%
Industrial Machinery & Supplies & Components	4.6%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	110.0%
Other Assets and Liabilities, Net	(10.0%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Max Healthcare Institute Ltd.	11.4%
Five-Star Business Finance Ltd.	8.9%
Divi's Laboratories Ltd.	7.8%
AU Small Finance Bank Ltd.	7.2%
Bajaj Finance Ltd.	7.0%
Kfin Technologies Ltd.	5.6%
Aditya Vision Ltd.	4.7%
Elgi Equipments Ltd.	4.6%
Cartrade Tech Ltd.	4.3%
Medi Assist Healthcare Services Ltd.	4.2%

C000166041

Shareholder Report [Line Items]

Fund Name

Wasatch Emerging India Fund

Class Name

Institutional Class

Trading Symbol

WIINX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Emerging India Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$68	1.50%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 68

Expense Ratio, Percent

1.50%

AssetsNet

$ 196,742,045

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,264,832

InvestmentCompanyPortfolioTurnover

10.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$196,742,045
# of Portfolio Holdings	26
Portfolio Turnover Rate	10%
Total Advisory Fees Paid	$2,264,832

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Consumer Finance	20.0%
Health Care Facilities	11.4%
Asset Management & Custody Banks	8.2%
Life Sciences Tools & Services	7.8%
Regional Banks	7.2%
Diversified Banks	5.9%
Building Products	5.5%
Pharmaceuticals	5.2%
Computer & Electronics Retail	4.7%
Industrial Machinery & Supplies & Components	4.6%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	110.0%
Other Assets and Liabilities, Net	(10.0%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Max Healthcare Institute Ltd.	11.4%
Five-Star Business Finance Ltd.	8.9%
Divi's Laboratories Ltd.	7.8%
AU Small Finance Bank Ltd.	7.2%
Bajaj Finance Ltd.	7.0%
Kfin Technologies Ltd.	5.6%
Aditya Vision Ltd.	4.7%
Elgi Equipments Ltd.	4.6%
Cartrade Tech Ltd.	4.3%
Medi Assist Healthcare Services Ltd.	4.2%

C000119725

Shareholder Report [Line Items]

Fund Name

Wasatch Emerging Markets Select Fund

Class Name

Investor Class

Trading Symbol

WAESX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Emerging Markets Select Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$75	1.53%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 75

Expense Ratio, Percent

1.53%

AssetsNet

$ 163,888,692

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,170,720

InvestmentCompanyPortfolioTurnover

14.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$163,888,692
# of Portfolio Holdings	37
Portfolio Turnover Rate	14%
Total Advisory Fees Paid	$1,170,720

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Broadline Retail	10.6%
Consumer Finance	10.0%
Semiconductors	9.2%
Electrical Components & Equipment	8.6%
Electronic Equipment & Instruments	7.4%
Diversified Banks	6.3%
Airport Services	6.2%
Life Sciences Tools & Services	5.1%
Semiconductor Materials & Equipment	4.5%
Health Care Facilities	4.5%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	102.2%
Other Assets and Liabilities, Net	(2.2%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
MercadoLibre, Inc.	6.8%
WEG SA	6.6%
Bajaj Finance Ltd.	6.2%
Chroma ATE, Inc.	5.7%
Divi's Laboratories Ltd.	5.1%
ASPEED Technology, Inc.	4.9%
Max Healthcare Institute Ltd.	4.5%
Asia Vital Components Co. Ltd.	4.2%
NU Holdings Ltd., Class A	4.1%
Grupo Aeroportuario del Pacifico SAB de CV, Class B	4.0%

C000119726

Shareholder Report [Line Items]

Fund Name

Wasatch Emerging Markets Select Fund

Class Name

Institutional Class

Trading Symbol

WIESX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Emerging Markets Select Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$61	1.25%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 61

Expense Ratio, Percent

1.25%

AssetsNet

$ 163,888,692

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,170,720

InvestmentCompanyPortfolioTurnover

14.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$163,888,692
# of Portfolio Holdings	37
Portfolio Turnover Rate	14%
Total Advisory Fees Paid	$1,170,720

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Broadline Retail	10.6%
Consumer Finance	10.0%
Semiconductors	9.2%
Electrical Components & Equipment	8.6%
Electronic Equipment & Instruments	7.4%
Diversified Banks	6.3%
Airport Services	6.2%
Life Sciences Tools & Services	5.1%
Semiconductor Materials & Equipment	4.5%
Health Care Facilities	4.5%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	102.2%
Other Assets and Liabilities, Net	(2.2%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
MercadoLibre, Inc.	6.8%
WEG SA	6.6%
Bajaj Finance Ltd.	6.2%
Chroma ATE, Inc.	5.7%
Divi's Laboratories Ltd.	5.1%
ASPEED Technology, Inc.	4.9%
Max Healthcare Institute Ltd.	4.5%
Asia Vital Components Co. Ltd.	4.2%
NU Holdings Ltd., Class A	4.1%
Grupo Aeroportuario del Pacifico SAB de CV, Class B	4.0%

C000051938

Shareholder Report [Line Items]

Fund Name

Wasatch Emerging Markets Small Cap Fund

Class Name

Investor Class

Trading Symbol

WAEMX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Emerging Markets Small Cap Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Material Fund Change Notice [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$105	2.02%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 105

Expense Ratio, Percent

2.02%

AssetsNet

$ 95,135,608

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,082,402

InvestmentCompanyPortfolioTurnover

26.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$95,135,608
# of Portfolio Holdings	51
Portfolio Turnover Rate	26%
Total Advisory Fees Paid	$1,082,402

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Electrical Components & Equipment	10.4%
Diversified Banks	9.8%
Electronic Equipment & Instruments	8.3%
Semiconductors	7.6%
Semiconductor Materials & Equipment	4.9%
Technology Hardware, Storage & Peripherals	4.3%
Communications Equipment	3.9%
Regional Banks	3.7%
Pharmaceuticals	3.3%
Life & Health Insurance	3.3%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	96.9%
Other Assets and Liabilities, Net	3.1%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Chroma ATE, Inc.	6.1%
ASPEED Technology, Inc.	4.8%
Accton Technology Corp.	3.9%
Anji Microelectronics Technology Shanghai Co. Ltd., Class A	3.7%
AU Small Finance Bank Ltd.	3.7%
Discovery Ltd.	3.3%
United Integrated Services Co. Ltd.	3.2%
Electrical Industries Co.	3.0%
Inter & Co., Inc., Class A	2.9%
Benefit Systems SA	2.9%

Material Fund Change [Text Block]

Material Fund Changes

This is a summary of certain changes of the Fund since September 30, 2025. For more complete information, you may review the Fund’s prospectus, available on the Fund’s website at wasatchglobal.com or by contacting Wasatch at 800-551-1700. You may make inquiries to the Fund via email at shareholderservice@wasatchfunds.com.

Effective January 31, 2026, the Fund reduced its annual management fee from 1.65% to 1.50%.

Material Fund Change Expenses [Text Block]

Effective January 31, 2026, the Fund reduced its annual management fee from 1.65% to 1.50%.

Summary of Change Legend [Text Block]

C000166039

Shareholder Report [Line Items]

Fund Name

Wasatch Emerging Markets Small Cap Fund

Class Name

Institutional Class

Trading Symbol

WIEMX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Emerging Markets Small Cap Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Material Fund Change Notice [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$97	1.86%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 97

Expense Ratio, Percent

1.86%

AssetsNet

$ 95,135,608

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,082,402

InvestmentCompanyPortfolioTurnover

26.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$95,135,608
# of Portfolio Holdings	51
Portfolio Turnover Rate	26%
Total Advisory Fees Paid	$1,082,402

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Electrical Components & Equipment	10.4%
Diversified Banks	9.8%
Electronic Equipment & Instruments	8.3%
Semiconductors	7.6%
Semiconductor Materials & Equipment	4.9%
Technology Hardware, Storage & Peripherals	4.3%
Communications Equipment	3.9%
Regional Banks	3.7%
Pharmaceuticals	3.3%
Life & Health Insurance	3.3%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	96.9%
Other Assets and Liabilities, Net	3.1%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Chroma ATE, Inc.	6.1%
ASPEED Technology, Inc.	4.8%
Accton Technology Corp.	3.9%
Anji Microelectronics Technology Shanghai Co. Ltd., Class A	3.7%
AU Small Finance Bank Ltd.	3.7%
Discovery Ltd.	3.3%
United Integrated Services Co. Ltd.	3.2%
Electrical Industries Co.	3.0%
Inter & Co., Inc., Class A	2.9%
Benefit Systems SA	2.9%

Material Fund Change [Text Block]

Material Fund Changes

Effective January 31, 2026, the Fund reduced its annual management fee from 1.65% to 1.50% and the Fund’s investment advisor agreed to reduce the contractual operating expense limit on the Fund’s Institutional Class Shares from 1.80% to 1.75% through at least January 31, 2027.

Material Fund Change Expenses [Text Block]

Summary of Change Legend [Text Block]

C000110019

Shareholder Report [Line Items]

Fund Name

Wasatch Frontier Emerging Small Countries Fund

Class Name

Investor Class

Trading Symbol

WAFMX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Frontier Emerging Small Countries Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Material Fund Change Notice [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$101	2.11%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 101

Expense Ratio, Percent

2.11%

AssetsNet

$ 25,230,966

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 177,368

InvestmentCompanyPortfolioTurnover

42.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$25,230,966
# of Portfolio Holdings	34
Portfolio Turnover Rate	42%
Total Advisory Fees Paid	$177,368

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Diversified Banks	27.4%
Consumer Finance	9.0%
Broadline Retail	6.6%
Electrical Components & Equipment	6.5%
Semiconductor Materials & Equipment	6.3%
Marine Ports & Services	6.2%
Computer & Electronics Retail	5.4%
Asset Management & Custody Banks	5.2%
Life & Health Insurance	3.8%
Aerospace & Defense	3.7%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	102.0%
Other Assets and Liabilities, Net	(2.0%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
International Container Terminal Services, Inc.	6.2%
NU Holdings Ltd., Class A	5.8%
FPT Digital Retail JSC	5.4%
Banca Transilvania SA	5.3%
Georgia Capital PLC	5.2%
Military Commercial Joint Stock Bank	5.0%
MercadoLibre, Inc.	4.8%
Electrical Industries Co.	4.7%
Bajaj Finance Ltd.	4.6%
Cholamandalam Investment & Finance Co. Ltd.	4.5%

Material Fund Change [Text Block]

Material Fund Changes

Effective January 31, 2026, the Fund reduced its annual management fee from 1.65% to 1.50%, and the Fund’s investment advisor agreed to reduce the contractual operating expense limit on the Fund’s Investor Class Shares from 2.15% to 1.95% through at least January 31, 2027.

Material Fund Change Expenses [Text Block]

Summary of Change Legend [Text Block]

C000166042

Shareholder Report [Line Items]

Fund Name

Wasatch Frontier Emerging Small Countries Fund

Class Name

Institutional Class

Trading Symbol

WIFMX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Frontier Emerging Small Countries Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Material Fund Change Notice [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$92	1.91%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 92

Expense Ratio, Percent

1.91%

AssetsNet

$ 25,230,966

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 177,368

InvestmentCompanyPortfolioTurnover

42.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$25,230,966
# of Portfolio Holdings	34
Portfolio Turnover Rate	42%
Total Advisory Fees Paid	$177,368

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Diversified Banks	27.4%
Consumer Finance	9.0%
Broadline Retail	6.6%
Electrical Components & Equipment	6.5%
Semiconductor Materials & Equipment	6.3%
Marine Ports & Services	6.2%
Computer & Electronics Retail	5.4%
Asset Management & Custody Banks	5.2%
Life & Health Insurance	3.8%
Aerospace & Defense	3.7%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	102.0%
Other Assets and Liabilities, Net	(2.0%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
International Container Terminal Services, Inc.	6.2%
NU Holdings Ltd., Class A	5.8%
FPT Digital Retail JSC	5.4%
Banca Transilvania SA	5.3%
Georgia Capital PLC	5.2%
Military Commercial Joint Stock Bank	5.0%
MercadoLibre, Inc.	4.8%
Electrical Industries Co.	4.7%
Bajaj Finance Ltd.	4.6%
Cholamandalam Investment & Finance Co. Ltd.	4.5%

Material Fund Change [Text Block]

Material Fund Changes

Effective January 31, 2026, the Fund reduced its annual management fee from 1.65% to 1.50%, and the Fund’s investment advisor agreed to reduce the contractual operating expense limit on the Fund’s Institutional Class Shares from 1.95% to 1.75% through at least January 31, 2027.

Material Fund Change Expenses [Text Block]

Effective January 31, 2026, the Fund reduced its annual management fee from 1.65% to 1.50%, and the Fund’s investment advisor agreed to reduce the contractual operating expense limit on the Fund’s Institutional Class Shares from 1.95% to 1.75% through at least January 31, 2027.

Summary of Change Legend [Text Block]

C000065330

Shareholder Report [Line Items]

Fund Name

Wasatch Global Opportunities Fund

Class Name

Investor Class

Trading Symbol

WAGOX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Global Opportunities Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$74	1.54%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 74

Expense Ratio, Percent

1.54%

AssetsNet

$ 135,943,715

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 968,958

InvestmentCompanyPortfolioTurnover

22.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$135,943,715
# of Portfolio Holdings	67
Portfolio Turnover Rate	22%
Total Advisory Fees Paid	$968,958

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Trading Companies & Distributors	7.0%
Industrial Machinery & Supplies & Components	6.6%
Semiconductors	6.5%
Regional Banks	5.5%
Application Software	5.1%
Health Care Facilities	5.1%
Building Products	4.7%
Semiconductor Materials & Equipment	4.3%
Life Sciences Tools & Services	3.9%
Managed Health Care	3.9%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	100.6%
Other Assets and Liabilities, Net	(0.6%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	3.9%
ASPEED Technology, Inc.	3.9%
AU Small Finance Bank Ltd.	3.5%
Ensign Group, Inc.	2.9%
MonotaRO Co. Ltd.	2.8%
Diploma PLC	2.6%
RBC Bearings, Inc.	2.5%
Nova Ltd.	2.4%
Balchem Corp.	2.3%
Standex International Corp.	2.2%

C000166040

Shareholder Report [Line Items]

Fund Name

Wasatch Global Opportunities Fund

Class Name

Institutional Class

Trading Symbol

WIGOX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Global Opportunities Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$66	1.37%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 66

Expense Ratio, Percent

1.37%

AssetsNet

$ 135,943,715

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 968,958

InvestmentCompanyPortfolioTurnover

22.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$135,943,715
# of Portfolio Holdings	67
Portfolio Turnover Rate	22%
Total Advisory Fees Paid	$968,958

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Trading Companies & Distributors	7.0%
Industrial Machinery & Supplies & Components	6.6%
Semiconductors	6.5%
Regional Banks	5.5%
Application Software	5.1%
Health Care Facilities	5.1%
Building Products	4.7%
Semiconductor Materials & Equipment	4.3%
Life Sciences Tools & Services	3.9%
Managed Health Care	3.9%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	100.6%
Other Assets and Liabilities, Net	(0.6%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	3.9%
ASPEED Technology, Inc.	3.9%
AU Small Finance Bank Ltd.	3.5%
Ensign Group, Inc.	2.9%
MonotaRO Co. Ltd.	2.8%
Diploma PLC	2.6%
RBC Bearings, Inc.	2.5%
Nova Ltd.	2.4%
Balchem Corp.	2.3%
Standex International Corp.	2.2%

C000214013

Shareholder Report [Line Items]

Fund Name

Wasatch Global Select Fund

Class Name

Investor Class

Trading Symbol

WAGSX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Global Select Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$64	1.36%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 64

Expense Ratio, Percent

1.36%

AssetsNet

$ 11,457,644

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

23.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$11,457,644
# of Portfolio Holdings	32
Portfolio Turnover Rate	23%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Semiconductors	9.4%
Application Software	7.3%
Research & Consulting Services	6.7%
Industrial Machinery & Supplies & Components	6.0%
Aerospace & Defense	5.9%
Broadline Retail	5.9%
Trading Companies & Distributors	5.0%
Electronic Equipment & Instruments	4.9%
Electrical Components & Equipment	4.3%
Managed Health Care	4.3%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	100.2%
Other Assets and Liabilities, Net	(0.2%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
RBC Bearings, Inc.	6.0%
ASPEED Technology, Inc.	5.0%
Halma PLC	4.9%
UL Solutions, Inc., Class A	4.6%
Monolithic Power Systems, Inc.	4.4%
WEG SA	4.3%
HealthEquity, Inc.	4.3%
ASM International NV	4.1%
Dollarama, Inc.	4.0%
Definity Financial Corp.	3.9%

C000214012

Shareholder Report [Line Items]

Fund Name

Wasatch Global Select Fund

Class Name

Institutional Class

Trading Symbol

WGGSX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Global Select Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$45	0.96%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 45

Expense Ratio, Percent

0.96%

AssetsNet

$ 11,457,644

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

23.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$11,457,644
# of Portfolio Holdings	32
Portfolio Turnover Rate	23%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Semiconductors	9.4%
Application Software	7.3%
Research & Consulting Services	6.7%
Industrial Machinery & Supplies & Components	6.0%
Aerospace & Defense	5.9%
Broadline Retail	5.9%
Trading Companies & Distributors	5.0%
Electronic Equipment & Instruments	4.9%
Electrical Components & Equipment	4.3%
Managed Health Care	4.3%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	100.2%
Other Assets and Liabilities, Net	(0.2%)
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
RBC Bearings, Inc.	6.0%
ASPEED Technology, Inc.	5.0%
Halma PLC	4.9%
UL Solutions, Inc., Class A	4.6%
Monolithic Power Systems, Inc.	4.4%
WEG SA	4.3%
HealthEquity, Inc.	4.3%
ASM International NV	4.1%
Dollarama, Inc.	4.0%
Definity Financial Corp.	3.9%

C000262953

Shareholder Report [Line Items]

Fund Name

Wasatch Global Small Cap Value Fund

Class Name

Investor Class

Trading Symbol

WACVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Global Small Cap Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$74	1.50%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 74

Expense Ratio, Percent

1.50%

AssetsNet

$ 6,791,811

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

38.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$6,791,811
# of Portfolio Holdings	70
Portfolio Turnover Rate	38%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Investment Banking & Brokerage	8.9%
Trading Companies & Distributors	8.1%
IT Consulting & Other Services	5.8%
Construction & Engineering	5.7%
Research & Consulting Services	5.2%
Semiconductors	4.8%
Communications Equipment	4.1%
Regional Banks	3.7%
Asset Management & Custody Banks	3.6%
Health Care Equipment	3.2%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.1%
Other Assets and Liabilities, Net	0.9%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Plover Bay Technologies Ltd.	4.1%
Tasmea Ltd.	3.1%
Elmos Semiconductor SE	2.5%
Riverstone Holdings Ltd.	2.4%
FRP Advisory Group PLC	2.2%
Saia, Inc.	2.1%
ULS Group, Inc.	2.1%
Axogen, Inc.	2.1%
Hill & Smith PLC	2.1%
BayCurrent, Inc.	2.0%

C000262952

Shareholder Report [Line Items]

Fund Name

Wasatch Global Small Cap Value Fund

Class Name

Institutional Class

Trading Symbol

WGCVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Global Small Cap Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$54	1.10%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 54

Expense Ratio, Percent

1.10%

AssetsNet

$ 6,791,811

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

38.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$6,791,811
# of Portfolio Holdings	70
Portfolio Turnover Rate	38%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Investment Banking & Brokerage	8.9%
Trading Companies & Distributors	8.1%
IT Consulting & Other Services	5.8%
Construction & Engineering	5.7%
Research & Consulting Services	5.2%
Semiconductors	4.8%
Communications Equipment	4.1%
Regional Banks	3.7%
Asset Management & Custody Banks	3.6%
Health Care Equipment	3.2%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.1%
Other Assets and Liabilities, Net	0.9%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Plover Bay Technologies Ltd.	4.1%
Tasmea Ltd.	3.1%
Elmos Semiconductor SE	2.5%
Riverstone Holdings Ltd.	2.4%
FRP Advisory Group PLC	2.2%
Saia, Inc.	2.1%
ULS Group, Inc.	2.1%
Axogen, Inc.	2.1%
Hill & Smith PLC	2.1%
BayCurrent, Inc.	2.0%

C000070970

Shareholder Report [Line Items]

Fund Name

Wasatch Global Value Fund

Class Name

Investor Class

Trading Symbol

FMIEX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Global Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$58	1.10%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 58

Expense Ratio, Percent

1.10%

AssetsNet

$ 161,261,418

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 637,183

InvestmentCompanyPortfolioTurnover

17.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$161,261,418
# of Portfolio Holdings	39
Portfolio Turnover Rate	17%
Total Advisory Fees Paid	$637,183

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Diversified Banks	16.1%
Pharmaceuticals	10.5%
Integrated Oil & Gas	10.4%
Integrated Telecommunication Services	6.7%
Electric Utilities	6.5%
Tobacco	3.3%
Rail Transportation	2.7%
Multi-Line Insurance	2.7%
Food Retail	2.6%
Retail REITs	2.6%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	98.4%
Other Assets and Liabilities, Net	1.6%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
TotalEnergies SE	4.4%
Johnson & Johnson	4.4%
Citigroup, Inc.	3.9%
JPMorgan Chase & Co.	3.6%
Novartis AG	3.4%
Exelon Corp.	3.3%
KT&G Corp.	3.3%
Duke Energy Corp.	3.2%
Chevron Corp.	3.1%
United Overseas Bank Ltd.	2.9%

C000110018

Shareholder Report [Line Items]

Fund Name

Wasatch Global Value Fund

Class Name

Institutional Class

Trading Symbol

WILCX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Global Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$50	0.95%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 50

Expense Ratio, Percent

0.95%

AssetsNet

$ 161,261,418

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 637,183

InvestmentCompanyPortfolioTurnover

17.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$161,261,418
# of Portfolio Holdings	39
Portfolio Turnover Rate	17%
Total Advisory Fees Paid	$637,183

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Diversified Banks	16.1%
Pharmaceuticals	10.5%
Integrated Oil & Gas	10.4%
Integrated Telecommunication Services	6.7%
Electric Utilities	6.5%
Tobacco	3.3%
Rail Transportation	2.7%
Multi-Line Insurance	2.7%
Food Retail	2.6%
Retail REITs	2.6%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	98.4%
Other Assets and Liabilities, Net	1.6%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
TotalEnergies SE	4.4%
Johnson & Johnson	4.4%
Citigroup, Inc.	3.9%
JPMorgan Chase & Co.	3.6%
Novartis AG	3.4%
Exelon Corp.	3.3%
KT&G Corp.	3.3%
Duke Energy Corp.	3.2%
Chevron Corp.	3.1%
United Overseas Bank Ltd.	2.9%

C000002501

Shareholder Report [Line Items]

Fund Name

Wasatch International Growth Fund

Class Name

Investor Class

Trading Symbol

WAIGX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Growth Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$71	1.51%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 71

Expense Ratio, Percent

1.51%

AssetsNet

$ 149,920,688

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,102,238

InvestmentCompanyPortfolioTurnover

39.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$149,920,688
# of Portfolio Holdings	63
Portfolio Turnover Rate	39%
Total Advisory Fees Paid	$1,102,238

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Trading Companies & Distributors	10.9%
Electronic Equipment & Instruments	5.9%
Investment Banking & Brokerage	5.5%
Electrical Components & Equipment	4.3%
Semiconductor Materials & Equipment	4.1%
Property & Casualty Insurance	3.6%
Industrial Machinery & Supplies & Components	3.4%
Aerospace & Defense	3.3%
Regional Banks	3.2%
Casinos & Gaming	3.1%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	96.3%
Other Assets and Liabilities, Net	3.7%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
OEM International AB, Class B	4.0%
Definity Financial Corp.	3.1%
Lottomatica Group SpA	3.1%
Carel Industries SpA	3.0%
MonotaRO Co. Ltd.	3.0%
Diploma PLC	2.9%
Halma PLC	2.8%
AJ Bell PLC	2.7%
Inter & Co., Inc., Class A	2.6%
Kardex Holding AG	2.4%

C000166036

Shareholder Report [Line Items]

Fund Name

Wasatch International Growth Fund

Class Name

Institutional Class

Trading Symbol

WIIGX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Growth Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$64	1.36%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 64

Expense Ratio, Percent

1.36%

AssetsNet

$ 149,920,688

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,102,238

InvestmentCompanyPortfolioTurnover

39.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$149,920,688
# of Portfolio Holdings	63
Portfolio Turnover Rate	39%
Total Advisory Fees Paid	$1,102,238

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Trading Companies & Distributors	10.9%
Electronic Equipment & Instruments	5.9%
Investment Banking & Brokerage	5.5%
Electrical Components & Equipment	4.3%
Semiconductor Materials & Equipment	4.1%
Property & Casualty Insurance	3.6%
Industrial Machinery & Supplies & Components	3.4%
Aerospace & Defense	3.3%
Regional Banks	3.2%
Casinos & Gaming	3.1%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	96.3%
Other Assets and Liabilities, Net	3.7%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
OEM International AB, Class B	4.0%
Definity Financial Corp.	3.1%
Lottomatica Group SpA	3.1%
Carel Industries SpA	3.0%
MonotaRO Co. Ltd.	3.0%
Diploma PLC	2.9%
Halma PLC	2.8%
AJ Bell PLC	2.7%
Inter & Co., Inc., Class A	2.6%
Kardex Holding AG	2.4%

C000002502

Shareholder Report [Line Items]

Fund Name

Wasatch International Opportunities Fund

Class Name

Investor Class

Trading Symbol

WAIOX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Opportunities Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Material Fund Change Notice [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$107	2.29%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 107

Expense Ratio, Percent

2.29%

AssetsNet

$ 26,266,282

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 255,913

InvestmentCompanyPortfolioTurnover

29.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$26,266,282
# of Portfolio Holdings	51
Portfolio Turnover Rate	29%
Total Advisory Fees Paid	$255,913

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Diversified Support Services	7.5%
Electronic Equipment & Instruments	6.8%
Investment Banking & Brokerage	6.0%
Asset Management & Custody Banks	5.1%
Health Care Services	4.8%
Semiconductors	4.4%
Real Estate Services	3.7%
Construction & Engineering	3.6%
Application Software	3.5%
Research & Consulting Services	3.4%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	97.9%
Other Assets and Liabilities, Net	2.1%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Elmos Semiconductor SE	4.4%
AZOOM Co. Ltd.	3.7%
Japan Elevator Service Holdings Co. Ltd.	3.5%
Plover Bay Technologies Ltd.	3.4%
Sarantis SA	3.3%
Supply Network Ltd.	3.2%
Vijaya Diagnostic Centre Ltd.	3.1%
Nayax Ltd.	3.1%
ASTA Energy Solutions AG	3.1%
KRN Heat Exchanger & Refrigeration Ltd.	2.5%

Material Fund Change [Text Block]

Material Fund Changes

Effective January 31, 2026, the Fund reduced its annual management fee from 1.75% to 1.50%, and the Fund’s investment advisor agreed to reduce the contractual operating expense limit on the Fund’s Investor Class Shares from 2.25% to 1.95% through at least January 31, 2027.

Material Fund Change Expenses [Text Block]

Summary of Change Legend [Text Block]

C000166037

Shareholder Report [Line Items]

Fund Name

Wasatch International Opportunities Fund

Class Name

Institutional Class

Trading Symbol

WIIOX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Opportunities Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Material Fund Change Notice [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$95	2.02%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 95

Expense Ratio, Percent

2.02%

AssetsNet

$ 26,266,282

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 255,913

InvestmentCompanyPortfolioTurnover

29.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$26,266,282
# of Portfolio Holdings	51
Portfolio Turnover Rate	29%
Total Advisory Fees Paid	$255,913

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Diversified Support Services	7.5%
Electronic Equipment & Instruments	6.8%
Investment Banking & Brokerage	6.0%
Asset Management & Custody Banks	5.1%
Health Care Services	4.8%
Semiconductors	4.4%
Real Estate Services	3.7%
Construction & Engineering	3.6%
Application Software	3.5%
Research & Consulting Services	3.4%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	97.9%
Other Assets and Liabilities, Net	2.1%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Elmos Semiconductor SE	4.4%
AZOOM Co. Ltd.	3.7%
Japan Elevator Service Holdings Co. Ltd.	3.5%
Plover Bay Technologies Ltd.	3.4%
Sarantis SA	3.3%
Supply Network Ltd.	3.2%
Vijaya Diagnostic Centre Ltd.	3.1%
Nayax Ltd.	3.1%
ASTA Energy Solutions AG	3.1%
KRN Heat Exchanger & Refrigeration Ltd.	2.5%

Material Fund Change [Text Block]

Material Fund Changes

Effective January 31, 2026, the Fund reduced its annual management fee from 1.75% to 1.50%, and the Fund’s investment advisor agreed to reduce the contractual operating expense limit on the Fund’s Institutional Class Shares from 1.95% to 1.75% through at least January 31, 2027.

Material Fund Change Expenses [Text Block]

Effective January 31, 2026, the Fund reduced its annual management fee from 1.75% to 1.50%, and the Fund’s investment advisor agreed to reduce the contractual operating expense limit on the Fund’s Institutional Class Shares from 1.95% to 1.75% through at least January 31, 2027.

Summary of Change Legend [Text Block]

C000214015

Shareholder Report [Line Items]

Fund Name

Wasatch International Select Fund

Class Name

Investor Class

Trading Symbol

WAISX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Select Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$61	1.30%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 61

Expense Ratio, Percent

1.30%

AssetsNet

$ 4,008,136

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

50.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$4,008,136
# of Portfolio Holdings	34
Portfolio Turnover Rate	50%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Aerospace & Defense	8.8%
Construction & Engineering	7.9%
Semiconductor Materials & Equipment	6.1%
Casinos & Gaming	5.0%
Electronic Equipment & Instruments	5.0%
Trading Companies & Distributors	4.5%
Electrical Components & Equipment	4.1%
Oil & Gas Equipment & Services	4.1%
Soft Drinks & Non-Alcoholic Beverages	4.0%
Diversified Real Estate Activities	3.9%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	96.6%
Other Assets and Liabilities, Net	3.4%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Lottomatica Group SpA	5.0%
Halma PLC	5.0%
Kraftia Corp.	4.8%
Kongsberg Gruppen ASA	4.7%
BAE Systems PLC	4.2%
TechnipFMC PLC	4.1%
Coca-Cola HBC AG, Class DI	4.0%
Sumitomo Realty & Development Co. Ltd.	3.9%
Jumbo SA	3.9%
Definity Financial Corp.	3.8%

C000214014

Shareholder Report [Line Items]

Fund Name

Wasatch International Select Fund

Class Name

Institutional Class

Trading Symbol

WGISX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Select Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$42	0.90%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 42

Expense Ratio, Percent

0.90%

AssetsNet

$ 4,008,136

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

50.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$4,008,136
# of Portfolio Holdings	34
Portfolio Turnover Rate	50%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Aerospace & Defense	8.8%
Construction & Engineering	7.9%
Semiconductor Materials & Equipment	6.1%
Casinos & Gaming	5.0%
Electronic Equipment & Instruments	5.0%
Trading Companies & Distributors	4.5%
Electrical Components & Equipment	4.1%
Oil & Gas Equipment & Services	4.1%
Soft Drinks & Non-Alcoholic Beverages	4.0%
Diversified Real Estate Activities	3.9%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	96.6%
Other Assets and Liabilities, Net	3.4%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Lottomatica Group SpA	5.0%
Halma PLC	5.0%
Kraftia Corp.	4.8%
Kongsberg Gruppen ASA	4.7%
BAE Systems PLC	4.2%
TechnipFMC PLC	4.1%
Coca-Cola HBC AG, Class DI	4.0%
Sumitomo Realty & Development Co. Ltd.	3.9%
Jumbo SA	3.9%
Definity Financial Corp.	3.8%

C000262951

Shareholder Report [Line Items]

Fund Name

Wasatch International Small Cap Value Fund

Class Name

Investor Class

Trading Symbol

WASVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Small Cap Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$73	1.50%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 73

Expense Ratio, Percent

1.50%

AssetsNet

$ 4,265,720

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

31.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$4,265,720
# of Portfolio Holdings	49
Portfolio Turnover Rate	31%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Investment Banking & Brokerage	8.5%
Semiconductors	6.8%
Trading Companies & Distributors	6.7%
IT Consulting & Other Services	6.4%
Communications Equipment	5.9%
Construction & Engineering	5.9%
Research & Consulting Services	5.2%
Electronic Equipment & Instruments	3.6%
Asset Management & Custody Banks	3.5%
Electrical Components & Equipment	3.2%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	93.8%
Other Assets and Liabilities, Net	6.2%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Plover Bay Technologies Ltd.	5.9%
Tasmea Ltd.	4.4%
Elmos Semiconductor SE	3.6%
FRP Advisory Group PLC	3.2%
Riverstone Holdings Ltd.	3.0%
BayCurrent, Inc.	2.8%
Marex Group PLC	2.8%
Hill & Smith PLC	2.8%
R&S Group Holding AG	2.6%
ULS Group, Inc.	2.6%

C000262950

Shareholder Report [Line Items]

Fund Name

Wasatch International Small Cap Value Fund

Class Name

Institutional Class

Trading Symbol

WGSVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Small Cap Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$53	1.10%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 53

Expense Ratio, Percent

1.10%

AssetsNet

$ 4,265,720

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

31.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$4,265,720
# of Portfolio Holdings	49
Portfolio Turnover Rate	31%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Investment Banking & Brokerage	8.5%
Semiconductors	6.8%
Trading Companies & Distributors	6.7%
IT Consulting & Other Services	6.4%
Communications Equipment	5.9%
Construction & Engineering	5.9%
Research & Consulting Services	5.2%
Electronic Equipment & Instruments	3.6%
Asset Management & Custody Banks	3.5%
Electrical Components & Equipment	3.2%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	93.8%
Other Assets and Liabilities, Net	6.2%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Plover Bay Technologies Ltd.	5.9%
Tasmea Ltd.	4.4%
Elmos Semiconductor SE	3.6%
FRP Advisory Group PLC	3.2%
Riverstone Holdings Ltd.	3.0%
BayCurrent, Inc.	2.8%
Marex Group PLC	2.8%
Hill & Smith PLC	2.8%
R&S Group Holding AG	2.6%
ULS Group, Inc.	2.6%

C000255334

Shareholder Report [Line Items]

Fund Name

Wasatch International Value Fund

Class Name

Investor Class

Trading Symbol

WAIVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$56	1.05%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 56

Expense Ratio, Percent

1.05%

AssetsNet

$ 17,714,910

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

18.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$17,714,910
# of Portfolio Holdings	40
Portfolio Turnover Rate	18%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Diversified Banks	21.4%
Integrated Oil & Gas	11.8%
Pharmaceuticals	9.1%
Multi-Utilities	5.9%
Tobacco	4.9%
Integrated Telecommunication Services	4.7%
Multi-Line Insurance	3.4%
Real Estate Development	3.0%
Gas Utilities	3.0%
Reinsurance	2.8%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	100.0%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
TotalEnergies SE	3.8%
ING Groep NV	3.6%
Nordea Bank Abp	3.5%
HSBC Holdings PLC	3.5%
AXA SA	3.4%
National Grid PLC	3.4%
Eni SpA	3.2%
Deutsche Telekom AG	3.1%
Sino Land Co. Ltd.	3.0%
Naturgy Energy Group SA	3.0%

C000255335

Shareholder Report [Line Items]

Fund Name

Wasatch International Value Fund

Class Name

Institutional Class

Trading Symbol

WGIVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch International Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$48	0.90%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 48

Expense Ratio, Percent

0.90%

AssetsNet

$ 17,714,910

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

18.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$17,714,910
# of Portfolio Holdings	40
Portfolio Turnover Rate	18%
Total Advisory Fees Paid	$0

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Diversified Banks	21.4%
Integrated Oil & Gas	11.8%
Pharmaceuticals	9.1%
Multi-Utilities	5.9%
Tobacco	4.9%
Integrated Telecommunication Services	4.7%
Multi-Line Insurance	3.4%
Real Estate Development	3.0%
Gas Utilities	3.0%
Reinsurance	2.8%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	100.0%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
TotalEnergies SE	3.8%
ING Groep NV	3.6%
Nordea Bank Abp	3.5%
HSBC Holdings PLC	3.5%
AXA SA	3.4%
National Grid PLC	3.4%
Eni SpA	3.2%
Deutsche Telekom AG	3.1%
Sino Land Co. Ltd.	3.0%
Naturgy Energy Group SA	3.0%

C000230418

Shareholder Report [Line Items]

Fund Name

Wasatch Long/Short Alpha Fund

Class Name

Investor Class

Trading Symbol

WALSX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Long/Short Alpha Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$125	2.48%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 125

Expense Ratio, Percent

2.48%

AssetsNet

$ 35,662,215

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 223,520

InvestmentCompanyPortfolioTurnover

21.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$35,662,215
# of Portfolio Holdings	51
Portfolio Turnover Rate	21%
Total Advisory Fees Paid	$223,520

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Industrial Machinery & Supplies & Components	9.5%
Application Software	8.3%
Health Care Services	7.1%
Research & Consulting Services	6.9%
Managed Health Care	5.5%
Construction Machinery & Heavy Transportation Equipment	4.8%
Health Care Facilities	4.7%
Transaction & Payment Processing Services	4.3%
Regional Banks	4.1%
Life Sciences Tools & Services	4.0%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	127.2%
Warrants	0.0%
Other Assets and Liabilities, Net	(27.2%)
Total	100.0%

All tables above exclude securities sold short.

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	5.5%
RBC Bearings, Inc.	4.9%
Ensign Group, Inc.	4.6%
Kadant, Inc.	4.5%
UL Solutions, Inc., Class A	4.4%
Bank OZK	4.1%
Medpace Holdings, Inc.	4.0%
Fabrinet	3.8%
Everus Construction Group, Inc.	3.7%
Monolithic Power Systems, Inc.	3.7%

C000230419

Shareholder Report [Line Items]

Fund Name

Wasatch Long/Short Alpha Fund

Class Name

Institutional Class

Trading Symbol

WGLSX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Long/Short Alpha Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$112	2.23%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 112

Expense Ratio, Percent

2.23%

AssetsNet

$ 35,662,215

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 223,520

InvestmentCompanyPortfolioTurnover

21.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$35,662,215
# of Portfolio Holdings	51
Portfolio Turnover Rate	21%
Total Advisory Fees Paid	$223,520

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Industrial Machinery & Supplies & Components	9.5%
Application Software	8.3%
Health Care Services	7.1%
Research & Consulting Services	6.9%
Managed Health Care	5.5%
Construction Machinery & Heavy Transportation Equipment	4.8%
Health Care Facilities	4.7%
Transaction & Payment Processing Services	4.3%
Regional Banks	4.1%
Life Sciences Tools & Services	4.0%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	127.2%
Warrants	0.0%
Other Assets and Liabilities, Net	(27.2%)
Total	100.0%

All tables above exclude securities sold short.

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	5.5%
RBC Bearings, Inc.	4.9%
Ensign Group, Inc.	4.6%
Kadant, Inc.	4.5%
UL Solutions, Inc., Class A	4.4%
Bank OZK	4.1%
Medpace Holdings, Inc.	4.0%
Fabrinet	3.8%
Everus Construction Group, Inc.	3.7%
Monolithic Power Systems, Inc.	3.7%

C000002503

Shareholder Report [Line Items]

Fund Name

Wasatch Micro Cap Fund

Class Name

Investor Class

Trading Symbol

WMICX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Micro Cap Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$82	1.66%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 82

Expense Ratio, Percent

1.66%

AssetsNet

$ 560,235,228

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 4,559,500

InvestmentCompanyPortfolioTurnover

33.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$560,235,228
# of Portfolio Holdings	59
Portfolio Turnover Rate	33%
Total Advisory Fees Paid	$4,559,500

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Electronic Equipment & Instruments	7.6%
Aerospace & Defense	6.4%
Packaged Foods & Meats	6.1%
Construction & Engineering	5.8%
Education Services	5.6%
Research & Consulting Services	5.2%
Regional Banks	4.4%
Application Software	3.9%
Health Care Services	3.9%
Pharmaceuticals	3.8%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	95.7%
Preferred Stocks	1.4%
Warrants	0.0%
Other Assets and Liabilities, Net	2.9%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Esquire Financial Holdings, Inc.	4.4%
NPK International, Inc.	3.5%
Mama's Creations, Inc.	2.9%
Standex International Corp.	2.9%
Universal Technical Institute, Inc.	2.9%
Lincoln Educational Services Corp.	2.7%
Willdan Group, Inc.	2.7%
XPEL, Inc.	2.7%
Pennant Group, Inc.	2.6%
Red Violet, Inc.	2.6%

C000217855

Shareholder Report [Line Items]

Fund Name

Wasatch Micro Cap Fund

Class Name

Institutional Class

Trading Symbol

WGICX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Micro Cap Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$79	1.60%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 79

Expense Ratio, Percent

1.60%

AssetsNet

$ 560,235,228

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 4,559,500

InvestmentCompanyPortfolioTurnover

33.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$560,235,228
# of Portfolio Holdings	59
Portfolio Turnover Rate	33%
Total Advisory Fees Paid	$4,559,500

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Electronic Equipment & Instruments	7.6%
Aerospace & Defense	6.4%
Packaged Foods & Meats	6.1%
Construction & Engineering	5.8%
Education Services	5.6%
Research & Consulting Services	5.2%
Regional Banks	4.4%
Application Software	3.9%
Health Care Services	3.9%
Pharmaceuticals	3.8%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	95.7%
Preferred Stocks	1.4%
Warrants	0.0%
Other Assets and Liabilities, Net	2.9%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Esquire Financial Holdings, Inc.	4.4%
NPK International, Inc.	3.5%
Mama's Creations, Inc.	2.9%
Standex International Corp.	2.9%
Universal Technical Institute, Inc.	2.9%
Lincoln Educational Services Corp.	2.7%
Willdan Group, Inc.	2.7%
XPEL, Inc.	2.7%
Pennant Group, Inc.	2.6%
Red Violet, Inc.	2.6%

C000002504

Shareholder Report [Line Items]

Fund Name

Wasatch Micro Cap Value Fund

Class Name

Investor Class

Trading Symbol

WAMVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Micro Cap Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$83	1.68%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 83

Expense Ratio, Percent

1.68%

AssetsNet

$ 317,844,203

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,580,189

InvestmentCompanyPortfolioTurnover

25.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$317,844,203
# of Portfolio Holdings	61
Portfolio Turnover Rate	25%
Total Advisory Fees Paid	$2,580,189

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Trading Companies & Distributors	8.1%
Construction & Engineering	7.1%
Regional Banks	5.7%
Property & Casualty Insurance	5.3%
Research & Consulting Services	5.1%
Electronic Equipment & Instruments	4.7%
Application Software	4.6%
Investment Banking & Brokerage	4.3%
Aerospace & Defense	4.3%
Packaged Foods & Meats	4.2%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.1%
Other Assets and Liabilities, Net	0.9%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Digi International, Inc.	3.5%
NPK International, Inc.	3.5%
DXP Enterprises, Inc.	2.9%
Red Violet, Inc.	2.9%
Standex International Corp.	2.8%
Lincoln Educational Services Corp.	2.8%
Chefs' Warehouse, Inc.	2.7%
Mama's Creations, Inc.	2.6%
Axogen, Inc.	2.5%
Bel Fuse, Inc., Class B	2.5%

C000217856

Shareholder Report [Line Items]

Fund Name

Wasatch Micro Cap Value Fund

Class Name

Institutional Class

Trading Symbol

WGMVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Micro Cap Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$79	1.60%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 79

Expense Ratio, Percent

1.60%

AssetsNet

$ 317,844,203

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,580,189

InvestmentCompanyPortfolioTurnover

25.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$317,844,203
# of Portfolio Holdings	61
Portfolio Turnover Rate	25%
Total Advisory Fees Paid	$2,580,189

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Trading Companies & Distributors	8.1%
Construction & Engineering	7.1%
Regional Banks	5.7%
Property & Casualty Insurance	5.3%
Research & Consulting Services	5.1%
Electronic Equipment & Instruments	4.7%
Application Software	4.6%
Investment Banking & Brokerage	4.3%
Aerospace & Defense	4.3%
Packaged Foods & Meats	4.2%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.1%
Other Assets and Liabilities, Net	0.9%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Digi International, Inc.	3.5%
NPK International, Inc.	3.5%
DXP Enterprises, Inc.	2.9%
Red Violet, Inc.	2.9%
Standex International Corp.	2.8%
Lincoln Educational Services Corp.	2.8%
Chefs' Warehouse, Inc.	2.7%
Mama's Creations, Inc.	2.6%
Axogen, Inc.	2.5%
Bel Fuse, Inc., Class B	2.5%

C000002505

Shareholder Report [Line Items]

Fund Name

Wasatch Small Cap Growth Fund

Class Name

Investor Class

Trading Symbol

WAAEX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Small Cap Growth Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$56	1.17%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 56

Expense Ratio, Percent

1.17%

AssetsNet

$ 1,196,653,924

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 7,156,589

InvestmentCompanyPortfolioTurnover

21.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$1,196,653,924
# of Portfolio Holdings	43
Portfolio Turnover Rate	21%
Total Advisory Fees Paid	$7,156,589

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Construction & Engineering	8.1%
Semiconductor Materials & Equipment	6.6%
Broadline Retail	6.5%
Application Software	6.2%
Health Care Services	5.2%
Managed Health Care	4.8%
Transaction & Payment Processing Services	4.6%
Life Sciences Tools & Services	4.6%
Industrial Machinery & Supplies & Components	4.4%
Health Care Facilities	4.4%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	98.4%
Preferred Stocks	1.2%
Other Assets and Liabilities, Net	0.4%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	4.8%
RBC Bearings, Inc.	4.4%
Ensign Group, Inc.	4.4%
SiteOne Landscape Supply, Inc.	4.3%
Medpace Holdings, Inc.	3.6%
Camtek Ltd.	3.4%
Fabrinet	3.3%
PJT Partners, Inc., Class A	3.3%
Nova Ltd.	3.2%
Everus Construction Group, Inc.	3.1%

C000166038

Shareholder Report [Line Items]

Fund Name

Wasatch Small Cap Growth Fund

Class Name

Institutional Class

Trading Symbol

WIAEX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Small Cap Growth Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$50	1.06%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 50

Expense Ratio, Percent

1.06%

AssetsNet

$ 1,196,653,924

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 7,156,589

InvestmentCompanyPortfolioTurnover

21.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$1,196,653,924
# of Portfolio Holdings	43
Portfolio Turnover Rate	21%
Total Advisory Fees Paid	$7,156,589

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Construction & Engineering	8.1%
Semiconductor Materials & Equipment	6.6%
Broadline Retail	6.5%
Application Software	6.2%
Health Care Services	5.2%
Managed Health Care	4.8%
Transaction & Payment Processing Services	4.6%
Life Sciences Tools & Services	4.6%
Industrial Machinery & Supplies & Components	4.4%
Health Care Facilities	4.4%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	98.4%
Preferred Stocks	1.2%
Other Assets and Liabilities, Net	0.4%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	4.8%
RBC Bearings, Inc.	4.4%
Ensign Group, Inc.	4.4%
SiteOne Landscape Supply, Inc.	4.3%
Medpace Holdings, Inc.	3.6%
Camtek Ltd.	3.4%
Fabrinet	3.3%
PJT Partners, Inc., Class A	3.3%
Nova Ltd.	3.2%
Everus Construction Group, Inc.	3.1%

C000002496

Shareholder Report [Line Items]

Fund Name

Wasatch Small Cap Value Fund

Class Name

Investor Class

Trading Symbol

WMCVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Small Cap Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$58	1.18%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 58

Expense Ratio, Percent

1.18%

AssetsNet

$ 1,316,020,187

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 7,077,184

InvestmentCompanyPortfolioTurnover

41.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$1,316,020,187
# of Portfolio Holdings	57
Portfolio Turnover Rate	41%
Total Advisory Fees Paid	$7,077,184

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Industrial Machinery & Supplies & Components	11.0%
Regional Banks	6.7%
Building Products	5.8%
Asset Management & Custody Banks	5.0%
Electronic Manufacturing Services	4.2%
Construction Machinery & Heavy Transportation Equipment	4.0%
Semiconductor Materials & Equipment	3.6%
Education Services	3.4%
Specialized Consumer Services	3.1%
Life Sciences Tools & Services	2.7%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.1%
Other Assets and Liabilities, Net	0.9%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Kadant, Inc.	3.0%
Bank OZK	2.9%
Allison Transmission Holdings, Inc.	2.8%
Medpace Holdings, Inc.	2.7%
Moelis & Co., Class A	2.7%
CTS Corp.	2.6%
HealthEquity, Inc.	2.5%
UFP Industries, Inc.	2.5%
Standex International Corp.	2.5%
Ensign Group, Inc.	2.4%

C000110017

Shareholder Report [Line Items]

Fund Name

Wasatch Small Cap Value Fund

Class Name

Institutional Class

Trading Symbol

WICVX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Small Cap Value Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$52	1.06%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 52

Expense Ratio, Percent

1.06%

AssetsNet

$ 1,316,020,187

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 7,077,184

InvestmentCompanyPortfolioTurnover

41.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$1,316,020,187
# of Portfolio Holdings	57
Portfolio Turnover Rate	41%
Total Advisory Fees Paid	$7,077,184

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Industrial Machinery & Supplies & Components	11.0%
Regional Banks	6.7%
Building Products	5.8%
Asset Management & Custody Banks	5.0%
Electronic Manufacturing Services	4.2%
Construction Machinery & Heavy Transportation Equipment	4.0%
Semiconductor Materials & Equipment	3.6%
Education Services	3.4%
Specialized Consumer Services	3.1%
Life Sciences Tools & Services	2.7%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.1%
Other Assets and Liabilities, Net	0.9%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
Kadant, Inc.	3.0%
Bank OZK	2.9%
Allison Transmission Holdings, Inc.	2.8%
Medpace Holdings, Inc.	2.7%
Moelis & Co., Class A	2.7%
CTS Corp.	2.6%
HealthEquity, Inc.	2.5%
UFP Industries, Inc.	2.5%
Standex International Corp.	2.5%
Ensign Group, Inc.	2.4%

C000002497

Shareholder Report [Line Items]

Fund Name

Wasatch Ultra Growth Fund

Class Name

Investor Class

Trading Symbol

WAMCX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Ultra Growth Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$63	1.26%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 63

Expense Ratio, Percent

1.26%

AssetsNet

$ 402,124,934

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,329,184

InvestmentCompanyPortfolioTurnover

18.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$402,124,934
# of Portfolio Holdings	54
Portfolio Turnover Rate	18%
Total Advisory Fees Paid	$2,329,184

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Semiconductor Materials & Equipment	13.2%
Biotechnology	10.3%
Health Care Equipment	7.7%
Pharmaceuticals	5.5%
Managed Health Care	4.7%
Packaged Foods & Meats	4.5%
Broadline Retail	4.3%
Application Software	4.1%
Industrial Machinery & Supplies & Components	3.8%
Transaction & Payment Processing Services	3.7%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	95.3%
Preferred Stocks	2.9%
Warrants	0.5%
Other Assets and Liabilities, Net	1.3%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	4.7%
Freshpet, Inc.	4.5%
PDF Solutions, Inc.	3.9%
RBC Bearings, Inc.	3.8%
Casella Waste Systems, Inc., Class A	3.5%
Kulicke & Soffa Industries, Inc.	3.0%
Johnnie-O Holdings, Inc., 0.00%	2.9%
Fabrinet	2.9%
JFrog Ltd.	2.7%
Camtek Ltd.	2.6%

C000217854

Shareholder Report [Line Items]

Fund Name

Wasatch Ultra Growth Fund

Class Name

Institutional Class

Trading Symbol

WGMCX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch Ultra Growth Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$53	1.06%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 53

Expense Ratio, Percent

1.06%

AssetsNet

$ 402,124,934

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,329,184

InvestmentCompanyPortfolioTurnover

18.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$402,124,934
# of Portfolio Holdings	54
Portfolio Turnover Rate	18%
Total Advisory Fees Paid	$2,329,184

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Semiconductor Materials & Equipment	13.2%
Biotechnology	10.3%
Health Care Equipment	7.7%
Pharmaceuticals	5.5%
Managed Health Care	4.7%
Packaged Foods & Meats	4.5%
Broadline Retail	4.3%
Application Software	4.1%
Industrial Machinery & Supplies & Components	3.8%
Transaction & Payment Processing Services	3.7%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	95.3%
Preferred Stocks	2.9%
Warrants	0.5%
Other Assets and Liabilities, Net	1.3%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	4.7%
Freshpet, Inc.	4.5%
PDF Solutions, Inc.	3.9%
RBC Bearings, Inc.	3.8%
Casella Waste Systems, Inc., Class A	3.5%
Kulicke & Soffa Industries, Inc.	3.0%
Johnnie-O Holdings, Inc., 0.00%	2.9%
Fabrinet	2.9%
JFrog Ltd.	2.7%
Camtek Ltd.	2.6%

C000236276

Shareholder Report [Line Items]

Fund Name

Wasatch U.S. Select Fund

Class Name

Investor Class

Trading Symbol

WAUSX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch U.S. Select Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Investor Class	$48	1.02%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 48

Expense Ratio, Percent

1.02%

AssetsNet

$ 16,164,378

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,582

InvestmentCompanyPortfolioTurnover

41.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$16,164,378
# of Portfolio Holdings	31
Portfolio Turnover Rate	41%
Total Advisory Fees Paid	$2,582

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Application Software	10.4%
Semiconductor Materials & Equipment	7.2%
Managed Health Care	5.7%
Life Sciences Tools & Services	5.6%
Building Products	5.3%
Aerospace & Defense	5.1%
Research & Consulting Services	4.2%
Cargo Ground Transportation	4.1%
Health Care Facilities	4.0%
Household Appliances	4.0%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.6%
Other Assets and Liabilities, Net	0.4%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	5.7%
UL Solutions, Inc., Class A	4.2%
Saia, Inc.	4.1%
Ensign Group, Inc.	4.0%
SharkNinja, Inc.	4.0%
Everus Construction Group, Inc.	3.9%
RBC Bearings, Inc.	3.8%
Rollins, Inc.	3.8%
Camtek Ltd.	3.8%
Fabrinet	3.6%

C000236277

Shareholder Report [Line Items]

Fund Name

Wasatch U.S. Select Fund

Class Name

Institutional Class

Trading Symbol

WGUSX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch U.S. Select Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Institutional Class	$41	0.87%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.87%

AssetsNet

$ 16,164,378

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,582

InvestmentCompanyPortfolioTurnover

41.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$16,164,378
# of Portfolio Holdings	31
Portfolio Turnover Rate	41%
Total Advisory Fees Paid	$2,582

Holdings [Text Block]

Top 10 Industries (%)

Table Summary
Industry	Value
Application Software	10.4%
Semiconductor Materials & Equipment	7.2%
Managed Health Care	5.7%
Life Sciences Tools & Services	5.6%
Building Products	5.3%
Aerospace & Defense	5.1%
Research & Consulting Services	4.2%
Cargo Ground Transportation	4.1%
Health Care Facilities	4.0%
Household Appliances	4.0%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
Common Stocks	99.6%
Other Assets and Liabilities, Net	0.4%
Total	100.0%

Largest Holdings [Text Block]

Top 10 Holdings (%)

Table Summary
Top 10	Value
HealthEquity, Inc.	5.7%
UL Solutions, Inc., Class A	4.2%
Saia, Inc.	4.1%
Ensign Group, Inc.	4.0%
SharkNinja, Inc.	4.0%
Everus Construction Group, Inc.	3.9%
RBC Bearings, Inc.	3.8%
Rollins, Inc.	3.8%
Camtek Ltd.	3.8%
Fabrinet	3.6%

C000002500

Shareholder Report [Line Items]

Fund Name

Wasatch-Hoisington U.S. Treasury Fund

Class Name

Single Class

Trading Symbol

WHOSX

Annual or Semi-Annual Statement [Text Block]

This Semi-Annual shareholder report contains important information about Wasatch-Hoisington U.S. Treasury Fund (the "Fund") for the period of October 1, 2025 to March 31, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at wasatchglobal.com. You can also request this information by contacting us at 800-551-1700.

Additional Information Phone Number

800-551-1700

Additional Information Email

shareholderservice@wasatchfunds.com

Additional Information Website

wasatchglobal.com

Expenses [Text Block]

What were the Fund costs for last six months?

Semi-Annual Fund Operating Expenses

(based on a hypothetical $10,000 investment)

Table Summary
Fund Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference1}
Wasatch-Hoisington U.S. Treasury Fund	$37	0.75%

Footnote	Description
Footnote¹	Costs paid as a percentage of a $10,000 investment is an annualized figure.

Expenses Paid, Amount

$ 37

Expense Ratio, Percent

0.75%

AssetsNet

$ 114,318,944

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 327,548

InvestmentCompanyPortfolioTurnover

85.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Table Summary
Total Net Assets	$114,318,944
# of Portfolio Holdings	3
Portfolio Turnover Rate	85%
Total Advisory Fees Paid	$327,548

Holdings [Text Block]

Top Industries (%)

Table Summary
Industry	Value
Sovereign	97.0%

Portfolio Compositions (%)

Table Summary
Asset Type	Value
U.S. Government Obligations	97.0%
Other Assets and Liabilities, Net	3.0%
Total	100.0%

Largest Holdings [Text Block]

Top Holdings (%)

Table Summary
Top 10	Value
U.S. Treasury Note, 3.750%, due 2/28/33	52.2%
U.S. Treasury Note, 3.375%, due 2/29/28	22.6%
U.S. Treasury Note, 3.500%, due 2/28/31	22.3%