CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows - operating activities
Premiums collected	$ 392,715	$ 367,182
Policyholder benefits paid	(274,256)	(268,212)
Policy acquisition and other operating expenses paid	(141,913)	(138,612)
Federal income taxes paid	(8,068)	(15,094)
Investment income collected	185,546	175,541
Interest expense paid	(5,738)	(5,989)
Other	6,167	954
Net cash provided by operating activities	154,453	115,770
Fixed maturities
Purchases	(723,354)	(834,114)
Sales	229,690	257,033
Maturities, paydowns, calls and redemptions	491,739	475,532
Purchase of other invested assets	(53,716)	(33,809)
Net cash provided by (used in) short-term and other investments	(32,391)	7,925
Net cash (used in) investing activities	(88,032)	(127,433)
Cash flows - financing activities
Dividends paid to shareholders	(23,041)	(22,174)
Acquisition of treasury stock	0	(21,513)
Proceeds from exercise of stock options	3,130	1,926
Withholding tax payments on RSUs tendered	(2,604)	(3,233)
Annuity contracts: variable, fixed and FHLB funding agreements
Deposits	234,133	237,265
Benefits, withdrawals and net transfers to Separate Account (variable annuity) assets	(200,845)	(162,575)
Transfer of Company 401(k) assets to a third-party provider	(77,898)	0
Life policy accounts
Deposits	2,240	1,680
Withdrawals and surrenders	(2,287)	(1,995)
Change in bank overdrafts	87	17,205
Net cash (used in) provided by financing activities	(67,085)	46,586
Net (decrease) increase in cash	(664)	34,923
Cash at beginning of period	16,670	15,509
Cash at end of period	$ 16,006	$ 50,432