This semi-annual shareholder report contains important information about U.S. Equity Research Fund (the "fund") for the period of January 1, 2026 to June 30, 2026.

Additional Information [Text Block]

You can find the fund’s prospectus, financial information on Form N‑CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information atwww.troweprice.com/prospectus. You can also request this information without charge by contacting T. Rowe Price at 1‑800‑638‑5660 or info@troweprice.com or contacting your intermediary.

Material Fund Change Notice [Text Block]

Additional Information Phone Number

1‑800‑638‑5660

Additional Information Email

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Additional Information Website

www.troweprice.com/prospectus

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Table Summary
	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
U.S. Equity Research Fund - Investor Class	$26	0.49%

Expenses Paid, Amount

$ 26

Expense Ratio, Percent

0.49%

Updated Performance Information Location [Text Block]

If you invest directly with T. Rowe Price, you can elect to receive future shareholder reports or other important documents through electronic delivery by enrolling at www.troweprice.com/paperless. If you invest through a financial intermediary such as an investment advisor, a bank, retirement plan sponsor or a brokerage firm, please contact that organization and ask if it can provide electronic delivery.

Visit www.troweprice.com/en/us/market-data-disclosures for additional legal notices & disclaimers.

AssetsNet

$ 18,516,499,000

Holdings Count | Holding

320

InvestmentCompanyPortfolioTurnover

27.00%

Additional Fund Statistics [Text Block]

What are some fund statistics?

Fund Statistics

Table Summary
Total Net Assets (000s)	$18,516,499
Number of Portfolio Holdings	320

Additional Fund Statistics Significance or Limits [Text Block]

Table Summary

Portfolio Turnover Rate	27.0%

Holdings [Text Block]

Sector Allocation (as a % of Net Assets)

Table Summary
Information Technology	38.6%
Financials	12.3
Communication Services	9.8
Consumer Discretionary	9.0
Health Care	9.0
Industrials & Business Services	8.3
Consumer Staples	4.3
Energy	3.1
Utilities	2.2
Other	3.4

Largest Holdings [Text Block]

Top Ten Holdings (as a % of Net Assets)

Table Summary
NVIDIA	7.4%
Apple	6.5
Alphabet	6.1
Microsoft	4.4
Amazon.com	3.7
Broadcom	2.6
Micron Technology	2.1
Meta Platforms	2.0
Tesla	1.8
Advanced Micro Devices	1.8

Material Fund Change [Text Block]

Updated Prospectus Web Address

www.troweprice.com/paperless

C000005430

Shareholder Report [Line Items]

Fund Name

U.S. Equity Research Fund

Class Name

Advisor Class

Trading Symbol

PACOX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about U.S. Equity Research Fund (the "fund") for the period of January 1, 2026 to June 30, 2026.

Additional Information [Text Block]

Material Fund Change Notice [Text Block]

Additional Information Phone Number

1‑800‑638‑5660

Additional Information Email

Additional Information Website

www.troweprice.com/prospectus

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Table Summary
	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
U.S. Equity Research Fund - Advisor Class	$44	0.85%

Expenses Paid, Amount

$ 44

Expense Ratio, Percent

0.85%

Updated Performance Information Location [Text Block]

Visit www.troweprice.com/en/us/market-data-disclosures for additional legal notices & disclaimers.

AssetsNet

$ 18,516,499,000

Holdings Count | Holding

320

InvestmentCompanyPortfolioTurnover

27.00%

Additional Fund Statistics [Text Block]

What are some fund statistics?

Fund Statistics

Table Summary
Total Net Assets (000s)	$18,516,499
Number of Portfolio Holdings	320

Additional Fund Statistics Significance or Limits [Text Block]

Table Summary

Portfolio Turnover Rate	27.0%

Holdings [Text Block]

Sector Allocation (as a % of Net Assets)

Table Summary
Information Technology	38.6%
Financials	12.3
Communication Services	9.8
Consumer Discretionary	9.0
Health Care	9.0
Industrials & Business Services	8.3
Consumer Staples	4.3
Energy	3.1
Utilities	2.2
Other	3.4

Largest Holdings [Text Block]

Top Ten Holdings (as a % of Net Assets)

Table Summary
NVIDIA	7.4%
Apple	6.5
Alphabet	6.1
Microsoft	4.4
Amazon.com	3.7
Broadcom	2.6
Micron Technology	2.1
Meta Platforms	2.0
Tesla	1.8
Advanced Micro Devices	1.8

Material Fund Change [Text Block]

Updated Prospectus Web Address

www.troweprice.com/paperless

C000005431

Shareholder Report [Line Items]

Fund Name

U.S. Equity Research Fund

Class Name

R Class

Trading Symbol

RRCOX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about U.S. Equity Research Fund (the "fund") for the period of January 1, 2026 to June 30, 2026.

Additional Information [Text Block]

Material Fund Change Notice [Text Block]

Additional Information Phone Number

1‑800‑638‑5660

Additional Information Email

Additional Information Website

www.troweprice.com/prospectus

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Table Summary
	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
U.S. Equity Research Fund - R Class	$62	1.18%

Expenses Paid, Amount

$ 62

Expense Ratio, Percent

1.18%

Updated Performance Information Location [Text Block]

Visit www.troweprice.com/en/us/market-data-disclosures for additional legal notices & disclaimers.

AssetsNet

$ 18,516,499,000

Holdings Count | Holding

320

InvestmentCompanyPortfolioTurnover

27.00%

Additional Fund Statistics [Text Block]

What are some fund statistics?

Fund Statistics

Table Summary
Total Net Assets (000s)	$18,516,499
Number of Portfolio Holdings	320

Additional Fund Statistics Significance or Limits [Text Block]

Table Summary

Portfolio Turnover Rate	27.0%

Holdings [Text Block]

Sector Allocation (as a % of Net Assets)

Table Summary
Information Technology	38.6%
Financials	12.3
Communication Services	9.8
Consumer Discretionary	9.0
Health Care	9.0
Industrials & Business Services	8.3
Consumer Staples	4.3
Energy	3.1
Utilities	2.2
Other	3.4

Largest Holdings [Text Block]

Top Ten Holdings (as a % of Net Assets)

Table Summary
NVIDIA	7.4%
Apple	6.5
Alphabet	6.1
Microsoft	4.4
Amazon.com	3.7
Broadcom	2.6
Micron Technology	2.1
Meta Platforms	2.0
Tesla	1.8
Advanced Micro Devices	1.8

Material Fund Change [Text Block]

Updated Prospectus Web Address

www.troweprice.com/paperless

C000177207

Shareholder Report [Line Items]

Fund Name

U.S. Equity Research Fund

Class Name

I Class

Trading Symbol

PCCOX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about U.S. Equity Research Fund (the "fund") for the period of January 1, 2026 to June 30, 2026.

Additional Information [Text Block]

Material Fund Change Notice [Text Block]

Additional Information Phone Number

1‑800‑638‑5660

Additional Information Email

Additional Information Website

www.troweprice.com/prospectus

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Table Summary
	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
U.S. Equity Research Fund - I Class	$19	0.36%

Expenses Paid, Amount

$ 19

Expense Ratio, Percent

0.36%

Updated Performance Information Location [Text Block]

Visit www.troweprice.com/en/us/market-data-disclosures for additional legal notices & disclaimers.

AssetsNet

$ 18,516,499,000

Holdings Count | Holding

320

InvestmentCompanyPortfolioTurnover

27.00%

Additional Fund Statistics [Text Block]

What are some fund statistics?

Fund Statistics

Table Summary
Total Net Assets (000s)	$18,516,499
Number of Portfolio Holdings	320

Additional Fund Statistics Significance or Limits [Text Block]

Table Summary

Portfolio Turnover Rate	27.0%

Holdings [Text Block]

Sector Allocation (as a % of Net Assets)

Table Summary
Information Technology	38.6%
Financials	12.3
Communication Services	9.8
Consumer Discretionary	9.0
Health Care	9.0
Industrials & Business Services	8.3
Consumer Staples	4.3
Energy	3.1
Utilities	2.2
Other	3.4

Largest Holdings [Text Block]

Top Ten Holdings (as a % of Net Assets)

Table Summary
NVIDIA	7.4%
Apple	6.5
Alphabet	6.1
Microsoft	4.4
Amazon.com	3.7
Broadcom	2.6
Micron Technology	2.1
Meta Platforms	2.0
Tesla	1.8
Advanced Micro Devices	1.8

Material Fund Change [Text Block]

Updated Prospectus Web Address

www.troweprice.com/paperless

C000232530

Shareholder Report [Line Items]

Fund Name

U.S. Equity Research Fund

Class Name

Z Class

Trading Symbol

PCUZX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about U.S. Equity Research Fund (the "fund") for the period of January 1, 2026 to June 30, 2026.

Additional Information [Text Block]

Material Fund Change Notice [Text Block]

Additional Information Phone Number

1‑800‑638‑5660

Additional Information Email

Additional Information Website

www.troweprice.com/prospectus

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Table Summary
	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
U.S. Equity Research Fund - Z Class	$0	0.00%

Expenses Paid, Amount

$ 0

Expense Ratio, Percent

0.00%

Updated Performance Information Location [Text Block]

Visit www.troweprice.com/en/us/market-data-disclosures for additional legal notices & disclaimers.

AssetsNet

$ 18,516,499,000

Holdings Count | Holding

320

InvestmentCompanyPortfolioTurnover

27.00%

Additional Fund Statistics [Text Block]

What are some fund statistics?

Fund Statistics

Table Summary
Total Net Assets (000s)	$18,516,499
Number of Portfolio Holdings	320

Additional Fund Statistics Significance or Limits [Text Block]

Table Summary

Portfolio Turnover Rate	27.0%

Holdings [Text Block]

Sector Allocation (as a % of Net Assets)

Table Summary
Information Technology	38.6%
Financials	12.3
Communication Services	9.8
Consumer Discretionary	9.0
Health Care	9.0
Industrials & Business Services	8.3
Consumer Staples	4.3
Energy	3.1
Utilities	2.2
Other	3.4

Largest Holdings [Text Block]

Top Ten Holdings (as a % of Net Assets)

Table Summary
NVIDIA	7.4%
Apple	6.5
Alphabet	6.1
Microsoft	4.4
Amazon.com	3.7
Broadcom	2.6
Micron Technology	2.1
Meta Platforms	2.0
Tesla	1.8
Advanced Micro Devices	1.8

Material Fund Change [Text Block]

Updated Prospectus Web Address