Consolidated Statements of Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Premiums and other revenues:
Universal life and annuity contract charges	$ 134,254	$ 145,405	$ 149,721
Traditional life premiums	90,043	92,542	90,248
Net investment income	562,530	417,202	555,492
Other revenues	22,314	18,522	17,486
Net realized investment gains:
Total other-than-temporary impairment (“OTTI”) gains (losses)	0	5	(7,838)
Portion of OTTI (gains) losses recognized in other comprehensive income	0	(5)	(9)
Net OTTI losses recognized in earnings	0	0	(7,847)
Other net investment gains	14,950	21,071	14,088
Total net realized investment gains	14,950	21,071	6,241
Total revenues	824,091	694,742	819,188
Benefits and expenses:
Life and other policy benefits	187,577	131,337	137,342
Amortization of deferred transaction costs	69,461	140,503	116,802
Universal life and annuity contract interest	213,184	206,250	295,330
Other operating expenses	126,612	104,584	104,558
Total benefits and expenses	596,834	582,674	654,032
Earnings (loss) before Federal income taxes	227,257	112,068	165,156
Federal income taxes (benefit)	46,576	19,756	33,540
Net earnings (loss)	180,681	92,312	131,616
Class A
Benefits and expenses:
Net earnings (loss)	$ 175,571	$ 89,701	$ 127,894
Basic Earnings Per Share:
Basic earnings per share (in dollars per share)	$ 51.10	$ 26.11	$ 37.22
Diluted Earnings Per Share:
Diluted earnings per share (in dollars per share)	$ 51.10	$ 26.11	$ 37.22
Class B
Benefits and expenses:
Net earnings (loss)	$ 5,110	$ 2,611	$ 3,722
Basic Earnings Per Share:
Basic earnings per share (in dollars per share)	$ 25.55	$ 13.05	$ 18.61
Diluted Earnings Per Share:
Diluted earnings per share (in dollars per share)	$ 25.55	$ 13.05	$ 18.61