Insurance Operations - Reinsurance Ceded and Assumed (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2020	Mar. 31, 2020	Mar. 31, 2019
Written premiums
Direct written premiums		$ 212,951	$ 254,985
Assumed from other companies		833	853
Ceded to other companies		23,601	45,936
Net written premiums		190,183	209,902
Earned premiums
Direct earned premiums		228,580	223,002
Assumed from other companies		742	942
Ceded to other companies		23,660	28,336
Net premiums earned		$ 205,662	$ 195,608
Percent of amount assumed to net		0.40%	0.50%
Losses and loss adjustment expenses incurred
Direct net losses and loss adjustment expenses incurred		$ 144,377	$ 135,348
Assumed from other companies		(1,357)	2,819
Ceded to other companies		15,463	19,834
Net losses and loss adjustment expenses incurred		$ 127,557	$ 118,333
Gain (loss) on WAQs commuting	$ 0