Revenue - Contract Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Change in Contract with Customer, Asset [Abstract]
Balance at beginning of the year	$ 3,529
Estimated lifetime value of insurance policies sold by carriers	8,089	$ 4,313
Cash receipts	(2,234)	(784)
Balance at end of the year	9,384	3,529
Contract assets	9,384	$ 3,529
Long-term accounts receivable	7,500
Accounts Receivable Current
Change in Contract with Customer, Asset [Abstract]
Balance at end of the year	1,900
Contract assets	$ 1,900