Investments - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Affiliates
Schedule of Investments [Line Items]
Investments	$ 60,100	$ 56,254
Investments—Consolidated Investment Companies
Schedule of Investments [Line Items]
Investments	118,883	85,501
Stocks of Large Companies \| Investments—Consolidated Investment Companies
Schedule of Investments [Line Items]
Investments	13,200	7,600
Debt Securities \| Investments—Consolidated Investment Companies
Schedule of Investments [Line Items]
Investments	96,200	73,400
Stocks of Small and Mid Sized Companies \| Investments—Consolidated Investment Companies
Schedule of Investments [Line Items]
Investments	5,400	4,500
Mutual Fund \| Investments—Consolidated Investment Companies
Schedule of Investments [Line Items]
Investments	4,100
Federated Hermes Funds \| Affiliates
Schedule of Investments [Line Items]
Investments	53,500	50,100
Separate Accounts \| Affiliates
Schedule of Investments [Line Items]
Investments	6,600	6,200
Separate Accounts \| Stocks of Large Companies \| Affiliates
Schedule of Investments [Line Items]
Investments	4,300	3,900
Separate Accounts \| Debt Securities \| Affiliates
Schedule of Investments [Line Items]
Investments	$ 1,700	$ 1,700