v3.26.1
Shareholder Report
6 Months Ended
Mar. 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name CAUSEWAY CAPITAL MANAGEMENT TRUST
Entity Central Index Key 0001156906
Entity Investment Company Type N-1A
Document Period End Date Mar. 31, 2026
C000147001  
Shareholder Report [Line Items]  
Fund Name Causeway International Small Cap Fund
Class Name Institutional Class
Trading Symbol CIISX
Annual or Semi-Annual Statement [Text Block] Semi-Annual Shareholder Report
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] This semi-annual shareholder report contains important information about Institutional Class of the Causeway International Small Cap Fund (the "Fund") for the period from October 1, 2025 to March 31, 2026. You can find additional information about the Fund at https://www.causewaycap.com/documents/#documents-international-small-cap-fund. You can also request this information by contacting us at 1-866-947-7000.
Additional Information Phone Number 1-866-947-7000
Additional Information Website https://www.causewaycap.com/documents/#documents-international-small-cap-fund
Expenses [Text Block]

What were the Fund costs for the last six months?

(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
Causeway International Small Cap Fund, Institutional Class
$58
1.10%
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.10%
AssetsNet $ 311,533,000
Holdings Count | Holding 146
Advisory Fees Paid, Amount $ 1,461
InvestmentCompanyPortfolioTurnover 50.00%
Holdings [Text Block]

Country/Asset WeightingsFootnote Reference*

Holding Chart
Table Summary
Value
Value
Other Countries
14.5%
Short-Term Investment
1.5%
Norway
2.1%
Israel
2.9%
Australia
3.2%
Exchange-Traded Fund
4.5%
China
4.6%
India
4.9%
Indonesia
5.0%
United Kingdom
7.0%
South Korea
8.2%
Taiwan
8.6%
Canada
11.8%
Japan
20.5%
FootnoteDescription
Footnote*
Percentages are calculated based on total net assets.

Top Ten Holdings

Table Summary
Holding Name
Percentage of Total Net AssetsFootnote Reference(A)
Vanguard FTSE All World ex-US Small-Cap ETF
4.5%
National Aluminium Co. Ltd.
2.3%
AGF Management Ltd., Class B
2.0%
Finning International Inc.
2.0%
ZIM Integrated Shipping Services Ltd.
1.9%
Samsung Engineering Co. Ltd.
1.8%
Supreme Electronics Co. Ltd.
1.8%
LG Innotek Co. Ltd.
1.8%
Alamtri Resources Indonesia Tbk PT
1.7%
OceanaGold Corp.
1.7%
FootnoteDescription
Footnote(A)
Short-Term Investments are not shown in the top ten chart.
Updated Prospectus Phone Number 1-866-947-7000
Updated Prospectus Web Address https://www.causewaycap.com/documents/#documents-international-small-cap-fund
C000147002  
Shareholder Report [Line Items]  
Fund Name Causeway International Small Cap Fund
Class Name Investor Class
Trading Symbol CVISX
Annual or Semi-Annual Statement [Text Block] Semi-Annual Shareholder Report
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] This semi-annual shareholder report contains important information about Investor Class of the Causeway International Small Cap Fund (the "Fund") for the period from October 1, 2025 to March 31, 2026. You can find additional information about the Fund at https://www.causewaycap.com/documents/#documents-international-small-cap-fund. You can also request this information by contacting us at 1-866-947-7000.
Additional Information Phone Number 1-866-947-7000
Additional Information Website https://www.causewaycap.com/documents/#documents-international-small-cap-fund
Expenses [Text Block]

What were the Fund costs for the last six months?

(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
Causeway International Small Cap Fund, Investor Class
$71
1.35%
Expenses Paid, Amount $ 71
Expense Ratio, Percent 1.35%
AssetsNet $ 311,533,000
Holdings Count | Holding 146
Advisory Fees Paid, Amount $ 1,461
InvestmentCompanyPortfolioTurnover 50.00%
Holdings [Text Block]

Country/Asset WeightingsFootnote Reference*

Holding Chart
Table Summary
Value
Value
Other Countries
14.5%
Short-Term Investment
1.5%
Norway
2.1%
Israel
2.9%
Australia
3.2%
Exchange-Traded Fund
4.5%
China
4.6%
India
4.9%
Indonesia
5.0%
United Kingdom
7.0%
South Korea
8.2%
Taiwan
8.6%
Canada
11.8%
Japan
20.5%
FootnoteDescription
Footnote*
Percentages are calculated based on total net assets.

Top Ten Holdings

Table Summary
Holding Name
Percentage of Total Net AssetsFootnote Reference(A)
Vanguard FTSE All World ex-US Small-Cap ETF
4.5%
National Aluminium Co. Ltd.
2.3%
AGF Management Ltd., Class B
2.0%
Finning International Inc.
2.0%
ZIM Integrated Shipping Services Ltd.
1.9%
Samsung Engineering Co. Ltd.
1.8%
Supreme Electronics Co. Ltd.
1.8%
LG Innotek Co. Ltd.
1.8%
Alamtri Resources Indonesia Tbk PT
1.7%
OceanaGold Corp.
1.7%
FootnoteDescription
Footnote(A)
Short-Term Investments are not shown in the top ten chart.
Updated Prospectus Phone Number 1-866-947-7000
Updated Prospectus Web Address https://www.causewaycap.com/documents/#documents-international-small-cap-fund