Condensed Consolidated Statements of Earnings (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Premiums and other revenues:
Universal life and annuity contract charges	$ 34,550	$ 32,898	$ 97,014	$ 96,433
Traditional life and annuity contract premiums	4,685	3,961	13,314	12,475
Net investment income	44,538	106,605	275,777	261,740
Other revenues	5,643	6,075	20,247	20,394
Net realized investment gains (losses):
Total other-than-temporary impairment (“OTTI”) losses	(1,741)	(538)	(1,741)	(846)
Portion of OTTI losses recognized in other comprehensive income	1,719	123	1,719	123
Net OTTI losses recognized in earnings	(22)	(415)	(22)	(723)
Other net investment gains (losses)	2,960	2,087	6,542	2,017
Total net realized investment gains (losses)	2,938	1,672	6,520	1,294
Total revenues	92,354	151,211	412,872	392,336
Benefits and expenses:
Life and other policy benefits	12,363	13,335	34,177	40,141
Amortization of deferred policy acquisition costs	29,909	32,608	96,246	74,614
Universal life and annuity contract interest	1,873	86,792	147,254	167,423
Other operating expenses	18,948	(2,181)	58,727	32,223
Total benefits and expenses	63,093	130,554	336,404	314,401
Earnings before Federal income taxes	29,261	20,657	76,468	77,935
Federal income taxes	9,996	7,218	25,203	25,276
Net earnings	$ 19,265	$ 13,439	$ 51,265	$ 52,659
Common Class A [Member]
Basic Earnings Per Share:
Earnings Per Share, Basic (in dollars per share)	$ 5.45	$ 3.81	$ 14.51	$ 14.93
Diluted Earnings Per Share:
Earnings Per Share, Diluted (in dollars per share)	$ 5.45	$ 3.81	$ 14.49	$ 14.89
Common Class B [Member]
Basic Earnings Per Share:
Earnings Per Share, Basic (in dollars per share)	$ 2.73	$ 1.90	$ 7.25	$ 7.46
Diluted Earnings Per Share:
Earnings Per Share, Diluted (in dollars per share)	$ 2.73	$ 1.90	$ 7.25	$ 7.46