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Regulatory Requirements - Broker Dealer Companies (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Broker-dealer net capital requirement    
Minimum broker-dealer subsidiary net capital required under alternative SEC regulation $ 250  
Minimum percentage of aggregate debit items arising from broker-dealer client balances 2.00%  
Subsidiaries | American Enterprise Investment Services, Inc.    
Broker-dealer alternative excess net capital    
Net capital as a percent of aggregate debit items 9.49% 11.62%
Net capital $ 141,000 $ 171,000
Less: required net capital 30,000 29,000
Excess net capital 111,000 142,000
Subsidiaries | Ameriprise Financial Services, LLC    
Broker-dealer alternative excess net capital    
Net capital 113,000 101,000
Less: required net capital 0 0
Excess net capital $ 113,000 $ 101,000