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Statutory Financial Information and Dividend Restrictions (Narrative and Statutory Accounting Practices Tables) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Insurance [Abstract]      
American Equity Life, statutory net income (loss) $ (863,818) $ (34,467) $ 143,309
American Equity Life, statutory capital and surplus balance 4,078,532 3,728,732  
Statutory accounting practices, permitted practice, amount 210,200 366,300  
Total adjusted capital 4,437,574 3,978,901  
Company Action Level RBC $ 1,108,796 $ 1,069,434  
Ratio of adjusted capital to Company Action Level RBC 4 3.72  
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments [Abstract]      
Dividend restriction, percentage policyholders surplus 10.00%    
Statutory amount available for dividend payments without regulatory approval $ 407,900