Significant Accounting Policies	3 Months Ended
Significant Accounting Policies	Mar. 31, 2024
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Consolidation and Basis of Presentation The accompanying consolidated financial statements of American Equity Investment Life Holding Company ("we", "us", "our" or the "Company") have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. The consolidated financial statements include variable interest entities (“VIE”) in which we are the primary beneficiary. All of the adjustments in the consolidated financial statements are normal recurring items which are necessary to present fairly our financial position and results of operations on a basis consistent with the prior audited consolidated financial statements. Operating results for the three month periods ended March 31, 2024 are not necessarily indicative of the results that may be expected for any other period, including for the year ended December 31, 2024. All significant intercompany accounts and transactions have been eliminated. The preparation of financial statements requires management estimates and assumptions using subjective and complex judgments that frequently require assumptions about matters that are inherently uncertain. Our actual results could differ from these estimates. For further information related to a description of areas of judgment and estimates and other information necessary to understand our financial position and results of operations, refer to the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2023. Adopted Accounting Pronouncements Troubled Debt Restructurings and Vintage Disclosures In March 2022, the Financial Accounting Standards Board ("FASB") issued an accounting standards update ("ASU") on troubled debt restructurings ("TDR") and vintage disclosures related to current period gross write-offs and recoveries. This guidance eliminates the accounting guidance for TDRs by creditors and enhances disclosure requirements for certain refinancing and restructuring of loans by creditors when a borrower is experiencing financial difficulty. The guidance also requires companies to disclosure current-period gross write-offs by year of origination for financing receivables and net investments in leases. This ASU was adopted on January 1, 2023 and was applied prospectively. This guidance did not have a material impact on our consolidated financial statements. Targeted Improvements to the Accounting for Long-Duration Insurance Contracts In August 2018, the FASB issued an ASU that revises certain aspects of the measurement models and disclosure requirements for long duration insurance and investment contracts. The FASB’s objective in issuing this ASU is to improve, simplify, and enhance the accounting for long-duration contracts. The revisions include updating cash flow assumptions in the calculation of the liability for traditional life products, introducing the term ‘market risk benefit’ (“MRB”) and requiring all contract features meeting the definition of an MRB to be measured at fair value with the change in fair value recognized in net income excluding the change in fair value related to our own-credit risk which is recognized in AOCI and simplifying the method used to amortize deferred policy acquisition costs and deferred sales inducements to a constant level basis over the expected term of the related contracts rather than based on actual and estimated gross profits and enhancing disclosure requirements. While this ASU was effective for us January 1, 2023, the transition date (the remeasurement date) was January 1, 2021. We adopted the guidance for the liability for future policyholder benefits, deferred acquisition costs, and deferred sales inducements on a modified retrospective basis such that those balances were adjusted to conform to ASU 2018-12 on January 1, 2021. The guidance for market risk benefits was applied retrospectively.