Fair Value Measurements - Narrative (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) security	Jun. 30, 2021 USD ($) security bank_loan_participation	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) security bank_loan_participation
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of equity securities held | security			1	1		2
Number of bank loan participations held | bank_loan_participation				1		1
Recurring basis | Available-for-sale fixed maturity securities and equity securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Asset value | $	$ 0	$ 0	$ 102	$ 231	$ 299	$ 980