The table below describes the fees and expenses that you may pay if you buy, hold, and sell the Fund’s Shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and expense example below.

Operating Expenses Caption [Optional Text]

Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)

Expense Example [Heading]

EXAMPLE

Expense Example, With Redemption [Table]

		1 Year		3 Years		5 Years		10 Years
		$73		$228		$396		$882

Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example above, affect the Fund’s performance. For the fiscal year ended October 31, 2025, the portfolio turnover rate of the BBH Select Series – Large Cap Fund (the “Predecessor Fund”) was 20% of the average value of its portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Fund

Other Expenses, New Fund, Based on Estimates [Text]

Based on estimated expenses for the current fiscal year.

Annual Fund Operating Expenses [Table]

Management Fees*		0.72%
Distribution (12b-1) Fees		None
Other Expenses**		0.09%
Total Annual Fund Operating Expenses		0.81%

* Restated to reflect current fees.

** Based on estimated expenses for the current fiscal year.

Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund to the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

23.00%

Prospectus [Line Items]

Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold, and sell the Fund’s Class I Shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and expense example below.

Shareholder Fees [Table]

		Class I
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)		None
Maximum Deferred Sales Charge (Load) (as a percentage of the subscription amount)		None
Maximum Sales Charge (Load) Imposed on Reinvested Dividends and other Distributions (as a percentage of the amount being reinvested)		None
Redemption Fee on shares held less than 30 days after purchase (as a percentage of amount redeemed, if applicable)		2.00%
Exchange Fee		None

Annual Fund Operating Expenses [Table]

	Class I
Management Fees*	0.57%
Distribution (12b-1) Fee	None
Other Expenses*	0.06%
Total Annual Fund Operating Expenses	0.63%

* Restated to reflect current fees.

Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund’s Class I Shares to the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund’s Class I Shares for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the operating expenses of the Fund’s Class I Shares remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

62.00%

Prospectus [Line Items]

Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold, and sell the Fund’s Class N and Class I Shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and expense example below.

Annual Fund Operating Expenses [Table]

	Class N	Class I
Management Fees*	0.23%	0.23%
Shareholder Service Fee	0.20%	None
Distribution (12b-1) Fees	None	None
Other Expenses*	0.06%	0.04%
Total Annual Fund Operating Expenses	0.49%	0.27%
Less Fee Waiver/Expense Reimbursement**	(0.14)%	0.00%
Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement	0.35%	0.27%

* Restated to reflect current fees.

** Brown Brothers Harriman Credit Partners, LLC (the “Investment Adviser”), has contractually agreed to limit the Total Annual Fund Operating Expenses to 0.35% for Class N Shares through March 1, 2027 (excluding interest, taxes, brokerage commissions, other expenditures that are capitalized in accordance with generally accepted accounting principles, and other extraordinary expenses not incurred in the ordinary course of the Fund’s business) (the “Expense Limitation Agreement”). The Expense Limitation Agreement may only be terminated during its term with approval of the Fund’s Board of Trustees (the “Board”).

Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund’s Class N Shares and Class I Shares to the cost of investing in other mutual funds. This example gives effect to the Class N Shares’ Expense Limitation Agreement for 1 year and the first year of the 3-, 5- and 10-year calculations. The example assumes that you invest $10,000 in the Fund’s Class N Shares and Class I Shares for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the operating expenses of the Fund’s Class N Shares and Class I Shares remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

38.00%

Prospectus [Line Items]

Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold, and sell the Fund’s Class N Shares and Class I Shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and expense example below.

Annual Fund Operating Expenses [Table]

	Class N	Class I
Management Fees*	0.37%	0.37%
Distribution (12b-1) Fees	None	None
Other Expenses**	0.33%	0.07%
Total Annual Fund Operating Expenses	0.70%	0.44%

* Restated to reflect current fees.

** Restated to reflect current fees for Class I Shares. Based on estimated amounts for the current fiscal year for Class N Shares.

Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund’s Class N Shares and Class I Shares to the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund’s Class N Shares and Class I Shares for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the operating expenses of the Fund’s Class N Shares and Class I Shares remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

42.00%

Prospectus [Line Items]

Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold, and sell the Fund’s Class N and Class I Shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and expense example below.

Annual Fund Operating Expenses [Table]

	Class N	Class I
Management Fees*	0.37%	0.37%
Shareholder Service Fee	0.20%	None
Distribution (12b-1) Fees	None	None
Other Expenses*	0.16%	0.07%
Total Annual Fund Operating Expenses	0.73%	0.44%
Less Fee Waiver/Expense Reimbursement**	(0.08)%	0.00%
Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement	0.65%	0.44%

* Restated to reflect current fees.

** Brown Brothers Harriman & Co., through a separately identifiable department (“Investment Adviser”), has contractually agreed to limit the Total Annual Fund Operating Expenses to 0.65% for Class N Shares and 0.50% for Class I Shares through March 1, 2027 (excluding interest, taxes, brokerage commissions, other expenditures that are capitalized in accordance with generally accepted accounting principles, and other extraordinary expenses not incurred in the ordinary course of the Fund’s business) (the “Expense Limitation Agreement”). The Expense Limitation Agreement may only be terminated during its term with approval of the Fund’s Board of Trustees (the “Board”).

Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund’s Class N Shares and Class I Shares to the cost of investing in other mutual funds. This example gives effect to the Class N Shares’ Expense Limitation Agreement for 1 year and the first year of the 3-, 5- and 10-year calculations. The example assumes that you invest $10,000 in the Fund’s Class N Shares and Class I Shares for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the operating expenses of the Fund’s Class N Shares and Class I Shares remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover, Rate

187.00%

Prospectus [Line Items]

Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy and hold the Fund’s Institutional Shares.

Annual Fund Operating Expenses [Table]

		Institutional Shares
Management Fees*		0.18%
Distribution (12b-1) Fees		None
Other Expenses*		0.04%
Total Annual Fund Operating Expenses		0.22%

* Restated to reflect current fees.

Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund’s Institutional Shares to the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund’s Institutional Shares for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the operating expenses of the Fund’s Institutional Shares remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: