Schedule II - Condensed Financial Information of Registrant - Condensed Balance Shsets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets [Abstract]
Fair value	$ 488,210	$ 526,265
Equity securities, at fair value	3,157	20,039
Total assets acquired	102,367	133,361
Deferred income taxes, net	58
Current and deferred income taxes, net	35,035	2,552
Right-of-use assets	7,430	8,096
Reinsurance payable	32,262	28,633
Total assets	1,428,537	1,179,016
LIABILITIES AND SHAREHOLDERS’ EQUITY
Long-term debt	98,683	98,522
Lease liabilities	7,430	8,096
Other liabilities	54,524	37,246
Total liabilities	1,270,377	930,323
Preferred stock	0	0
Common stock	137	144
Additional paid-in capital	169,298	167,677
Accumulated other comprehensive income (loss)	11,386	10,281
Retained earnings (deficit)	(22,661)	70,591
Total shareholders’ equity	158,160	248,693	$ 215,259	$ 227,459
Total liabilities and shareholders' equity	1,428,537	1,179,016
Parent Company
Assets [Abstract]
Investments in subsidiaries	225,568	268,767
Fair value	20,646	24,951
Equity securities, at fair value	1,881	1,751
Total assets acquired	18,170	21,031
Deferred income taxes, net	868	1,940
Current and deferred income taxes, net	7,969	13,850
Note receivable and accrued interest to subsidiary	19,517	18,107
Right-of-use assets	7,108	7,716
Reinsurance payable	1,991	2,878
Total assets	303,718	360,991
LIABILITIES AND SHAREHOLDERS’ EQUITY
Due to subsidiaries, net	31,686	1,779
Long-term debt	98,683	98,522
Lease liabilities	7,108	7,716
Other liabilities	8,081	4,281
Total liabilities	145,558	112,298
Preferred stock	0	0
Common stock	137	144
Additional paid-in capital	169,298	167,677
Accumulated other comprehensive income (loss)	11,386	10,281
Retained earnings (deficit)	(22,661)	70,591
Total shareholders’ equity	158,160	248,693
Total liabilities and shareholders' equity	$ 303,718	$ 360,991