CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows - operating activities
Premiums collected	$ 167,568	$ 164,261
Policyholder benefits paid	(114,113)	(112,825)
Policy acquisition and other operating expenses paid	(76,090)	(78,740)
Federal income taxes paid	0	(6,976)
Investment income collected	77,459	71,483
Interest expense paid	(275)	(237)
Other	(1,464)	(2,549)
Net cash provided by operating activities	53,085	34,417
Fixed maturities
Purchases	(321,571)	(380,564)
Sales	52,940	99,182
Maturities, paydowns, calls and redemptions	66,605	118,975
Net cash provided by short-term and other investments	130,778	52,227
Net cash used in investing activities	(71,248)	(110,180)
Cash flows - financing activities
Dividends paid to shareholders	(9,784)	(8,052)
Acquisition of treasury stock	(3,867)	(1,843)
Exercise of stock options	3,746	4,410
Annuity contracts: variable, fixed and FHLB funding agreements
Deposits	100,305	90,181
Benefits, withdrawals and net transfers to Separate Account (variable annuity) assets	(78,746)	(61,969)
Life policy accounts
Deposits	106	311
Withdrawals and surrenders	(983)	(1,091)
Cash received related to repurchase agreements	23,384	87,833
Change in bank overdrafts	728	698
Net cash provided by financing activities	34,889	110,478
Net increase in cash	16,726	34,715
Cash at beginning of period	18,189	15,181
Cash at end of period	$ 34,915	$ 49,896