Intangible Assets and Goodwill - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 244,697	$ 225,654	$ 28,289
Acquisitions	2,421	38,064	197,365
Impairment loss (Insurance segment)	(55,211)	(43,758)
Purchase price adjustments		24,737
Accumulated impairment loss	99,000	43,800
Goodwill, ending balance	$ 191,907	$ 244,697	$ 225,654