CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues
Insurance premiums and contract charges earned	$ 930,697	$ 897,954	$ 817,333
Net investment income	357,596	365,064	376,507
Net investment gains (losses)	(2,289)	153,340	(12,543)
Other income	24,437	14,127	10,302
Total revenues	1,310,441	1,430,485	1,191,599
Benefits, losses and expenses
Benefits, claims and settlement expenses	568,891	585,068	637,560
Interest credited	204,635	212,786	206,199
Operating expenses	237,827	234,609	205,413
DAC unlocking and amortization expense	99,909	109,181	109,889
Intangible asset amortization expense	14,381	8,790	0
Interest expense	15,215	15,577	13,001
Other expense - goodwill and intangible asset impairments	10,000	28,025	0
Total benefits, losses and expenses	1,150,858	1,194,036	1,172,062
Income before income taxes	159,583	236,449	19,537
Income tax expense	26,268	52,006	1,194
Net income	$ 133,315	$ 184,443	$ 18,343
Net income per share
Basic (in usd per share)	$ 3.18	$ 4.42	$ 0.44
Diluted (in usd per share)	$ 3.17	$ 4.40	$ 0.44
Weighted average number of shares and equivalent shares
Basic (in shares)	41,881,289	41,737,876	41,570,492
Diluted (in shares)	42,040,892	41,948,531	41,894,232
Net investment gains (losses)
Total other-than-temporary impairment losses on securities	$ (5,283)	$ (1,380)	$ (1,530)
Portion of losses recognized in other comprehensive income (loss)	0	0	0
Net other-than-temporary impairment losses on securities recognized in net income	(5,283)	(1,380)	(1,530)
Sales and other, net	14,968	151,495	3,491
Change in fair value - equity securities	(167)	7,308	(18,323)
Change in fair value and gains realized on settlements - derivatives	(11,807)	(4,083)	3,819
Total	$ (2,289)	$ 153,340	$ (12,543)