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Investments - Narrative (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of Investments [Line Items] |  |
Investments—Affiliates and Other | $ 78,170 | $ 87,805
Investments - consolidated investment companies | 102,865 | 105,542
Debt Securities |  |
Schedule of Investments [Line Items] |  |
Investments - consolidated investment companies | 62,300 | 65,200
Stocks of Large Companies |  |
Schedule of Investments [Line Items] |  |
Investments - consolidated investment companies | 29,300 | 28,500
Stocks of Small and Mid Sized Companies |  |
Schedule of Investments [Line Items] |  |
Investments - consolidated investment companies | 5,800 | 7,400
Federated Hermes Funds |  |
Schedule of Investments [Line Items] |  |
Investments—Affiliates and Other | 68,900 | 77,600
Separate Accounts |  |
Schedule of Investments [Line Items] |  |
Investments—Affiliates and Other | 9,300 | 10,200
Separate Accounts | Debt Securities |  |
Schedule of Investments [Line Items] |  |
Investments—Affiliates and Other | 4,600 | 5,200
Separate Accounts | Stocks of Large Companies |  |
Schedule of Investments [Line Items] |  |
Investments—Affiliates and Other | $ 3,400 | $ 3,400

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