CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows - operating activities
Premiums collected	$ 168,558	$ 167,568
Policyholder benefits paid	(112,404)	(114,113)
Policy acquisition and other operating expenses paid	(73,560)	(76,090)
Investment income collected	82,486	77,459
Interest expense paid	(165)	(275)
Other	2,387	(1,464)
Net cash provided by operating activities	67,302	53,085
Fixed maturities
Purchases	(284,293)	(321,571)
Sales	81,320	52,940
Maturities, paydowns, calls and redemptions	166,847	66,605
Purchase of other invested assets	(12,472)	0
Net cash provided by (used in) short-term and other investments	(32,073)	130,778
Net cash used in investing activities	(80,671)	(71,248)
Cash flows - financing activities
Dividends paid to shareholders	(10,676)	(9,784)
Acquisition of treasury stock	(716)	(3,867)
Exercise of stock options	884	3,746
Annuity contracts: variable, fixed and FHLB funding agreements
Deposits	141,962	100,305
Benefits, withdrawals and net transfers to Separate Account (variable annuity) assets	(91,449)	(78,746)
Life policy accounts
Deposits	122	106
Withdrawals and surrenders	(1,044)	(983)
Cash received related to repurchase agreements	0	23,384
Change in bank overdrafts	6,542	728
Net cash provided by financing activities	45,625	34,889
Net increase in cash	32,256	16,726
Cash at beginning of period	11,675	18,189
Cash at end of period	$ 43,931	$ 34,915