Schedule II - Condensed Financial Information of Registrant (Parent Company Only) (Statements of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Investment income, net of expenses	$ 20,604	$ 18,232
Management fee income	7,026	5,115
Total revenues	486,371	379,268
Interest expense	5,410	4,545
Total expenses	487,403	366,465
Income before equity in undistributed earnings of subsidiaries and income tax benefit	(1,032)	12,803
Income tax benefit	(407)	2,456
Net (loss) income	(625)	10,347
Parent Company [Member]
Investment income, net of expenses	47	290
Dividend income from subsidiaries	15,500	5,525
Net realized gains	830
Management fee income	16,044	14,736
Total revenues	32,421	20,551
Operating expenses	14,185	11,395
Interest expense	5,410	4,545
Total expenses	19,595	15,940
Income before equity in undistributed earnings of subsidiaries and income tax benefit	12,826	4,611
Income tax benefit	(732)	(306)
Income before equity in undistributed earnings of subsidiaries	13,558	4,917
Equity in undistributed share of (loss) earnings in subsidiaries	(14,183)	5,430
Net (loss) income	(625)	10,347
Comprehensive income	$ 6,723	$ 5,827