Schedule IV - Reinsurance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
Gross Amount	$ 983,457	$ 951,302	$ 812,924
Ceded to Other Companies	(110,914)	(88,738)	(35,499)
Assumed from Other Companies	0	0	0
Net premiums earned	$ 872,543	$ 862,564	$ 777,425
Assumed Premiums as a Percentage of Net Premiums	0.00%	0.00%	0.00%