Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Net premiums earned	$ 203,855	$ 208,149
Net investment income	20,830	22,818
Equity in earnings (loss) of unconsolidated subsidiaries	(1,562)	(810)
Net realized investment gains (losses):
Impairment losses	(1,817)	(136)
Portion of impairment losses recognized in other comprehensive income (loss) before taxes	654	87
Net impairment losses recognized in earnings	(1,163)	(49)
Other net realized investment gains (losses)	(27,510)	36,672
Total net realized investment gains (losses)	(28,673)	36,623
Other income	2,251	2,095
Total revenues	196,701	268,875
Expenses
Net losses and loss adjustment expenses	164,832	159,755
Underwriting, policy acquisition and operating expenses:
Operating expense	34,773	33,290
DPAC amortization	27,283	28,102
SPC U.S. federal income tax expense	222	0
SPC dividend expense (income)	(508)	4,787
Interest expense	4,129	4,330
Total expenses	230,731	230,264
Income (loss) before income taxes	(34,030)	38,611
Provision for income taxes:
Current expense (benefit)	(1,852)	343
Deferred expense (benefit)	(10,224)	6,618
Total income tax expense (benefit)	(12,076)	6,961
Net income (loss)	(21,954)	31,650
Other comprehensive income (loss), after tax, net of reclassification adjustments	(41,865)	25,566
Comprehensive income (loss)	$ (63,819)	$ 57,216
Earnings (loss) per share
Basic (in usd per share)	$ (0.41)	$ 0.59
Diluted (in usd per share)	$ (0.41)	$ 0.59
Weighted average number of common shares outstanding:
Basic (in shares)	53,808	53,683
Diluted (in shares)	53,885	53,808
Cash dividends declared per common share (in usd per share)	$ 0.31	$ 0.31