Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net earnings	$ 50,184	$ 49,009
Adjustments to reconcile net earnings to net cash from operating activities:
Universal life and annuity contract interest	98,470	165,365
Surrender charges and other policy revenues	(8,302)	(9,104)
Realized (gains) losses on investments	(5,236)	(4,578)
Accretion/amortization of discounts and premiums, investments	102	(465)
Depreciation and amortization	1,671	1,741
(Increase) decrease in value of derivatives	17,069	(45,799)
(Increase) decrease in deferred policy acquisition and sales inducement costs	(2,190)	(6,062)
(Increase) decrease in accrued investment income	(3,311)	(449)
(Increase) decrease in other assets	(6,938)	(1,635)
Increase (decrease) in liabilities for future policy benefits	2,588	1,344
Increase (decrease) in other policyholder liabilities	4,558	7,127
Increase (decrease) in Federal income taxes liability	(10,882)	(13,501)
Increase (decrease) in deferred Federal income tax	15,735	12,517
Increase (decrease) in other liabilities	4,658	(2,806)
Other, net	0	(1)
Net cash provided by operating activities	158,176	152,703
Proceeds from sales of:
Securities held to maturity	0	0
Securities available for sale	13,131	5,334
Other investments	0	1,016
Proceeds from maturities and redemptions of:
Securities held to maturity	257,063	360,420
Securities available for sale	163,057	102,813
Index options	64,619	105,268
Purchases of:
Securities held to maturity	(534,663)	(477,353)
Securities available for sale	(310,637)	(195,023)
Index options	(40,977)	(33,610)
Other investments	(420)	(296)
Net change in short-term investments	0	0
Principal payments on mortgage loans	18,962	10,240
Cost of mortgage loans acquired	(1,632)	(29,611)
Decrease (increase) in policy loans	1,712	981
Other, net	0	2
Net cash used in investing activities	(369,785)	(149,819)
Cash flows from financing activities:
Deposits to account balances for universal life and annuity contracts	452,124	460,611
Return of account balances on universal life and annuity contracts	(445,871)	(450,565)
Issuance of common stock under stock option plan	0	350
Net cash provided by (used in) financing activities	6,253	10,396
Effect of foreign exchange	(12)	(633)
Net increase (decrease) in cash and short-term investments	(205,368)	12,647
Cash and short-term investments at beginning of period	277,078	120,859
Cash and short-term investments at end of period	71,710	133,506
Cash paid during the period for:
Interest	20	20
Income taxes	22,647	24,416
Noncash operating activities:
Deferral of sales inducements	$ (6,895)	$ (4,851)