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Stockholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended
	Apr. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Class of Warrant or Right [Line Items]
Amount available for ordinary dividends of the Company's insurance company subsidiaries		$ 18,519	$ 13,418
Common stock
Class of Warrant or Right [Line Items]
Stock repurchase program, authorized amount		$ 20,000
Common Class A
Class of Warrant or Right [Line Items]
Shares issued upon exercise of warrants (in shares)	207,445
Warrants outstanding (in shares)		2,016,044
Warrants, exercise price (in dollars per share)		$ 6.99