v3.26.1
Fees and Expenses - Selected American Shares - Selected American Shares
Dec. 31, 2025
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees
(fees paid directly from your investment)
Class S
shares
Class D
shares
Maximum Sales Charge (Load) Imposed on Purchases
(as a percentage of offering price)
None
None
Maximum Deferred Sales Charge (Load)
(as a percentage of the lesser of the net asset value of the shares redeemed or the total cost of such
shares)
None
None
Redemption Fee
(as a percentage of total redemption proceeds)
None
None
 
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
Class S shares
Class D shares
Management Fees
0.55%
0.55%
Distribution and/or Service (12b-1) Fees
0.25%
0.00%
Other Expenses
0.17%
0.10%
Total Annual Fund Operating Expenses
0.97%
0.65%
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Shareholder Fees
(fees paid directly from your investment)
Class S
shares
Class D
shares
Maximum Sales Charge (Load) Imposed on Purchases
(as a percentage of offering price)
None
None
Maximum Deferred Sales Charge (Load)
(as a percentage of the lesser of the net asset value of the shares redeemed or the total cost of such
shares)
None
None
Redemption Fee
(as a percentage of total redemption proceeds)
None
None
 
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
Class S shares
Class D shares
Management Fees
0.55%
0.55%
Distribution and/or Service (12b-1) Fees
0.25%
0.00%
Other Expenses
0.17%
0.10%
Total Annual Fund Operating Expenses
0.97%
0.65%
Expense Example [Heading] Example.
Expense Example Narrative [Text Block]
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual 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 Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: 
Expense Example, With Redemption [Table]
 
1 Year
3 Years
5 Years
10 Years
Class S shares
$99
$309
$536
$1,190
Class D shares
$66
$208
$362
$810
Portfolio Turnover [Heading] Portfolio Turnover
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, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 15% of the average value of its portfolio.
Portfolio Turnover, Rate 15.00%