Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash Flows From Operating Activities
Net income	$ 25,541	$ 38,697
Adjustments to reconcile net income to net cash provided by operating activities
Net accretion of bond premium	7,076	7,126
Depreciation and amortization	3,179	3,234
Stock-based compensation expense	1,865	1,200
Net realized investment gains	(3,651)	(1,656)
Net cash flows from trading investments	256	652
Deferred income tax benefit	(1,761)	(2,742)
Changes in:
Accrued investment income	235	799
Premiums receivable	(63,334)	(53,776)
Deferred policy acquisition costs	(11,007)	(14,557)
Reinsurance receivables	(7,413)	12,918
Prepaid reinsurance premiums	(363)	(342)
Income taxes receivable	(12,341)	(6,042)
Other assets	47	196
Future policy benefits and losses, claims and loss settlement expenses	78,807	43,735
Unearned premiums	60,851	53,048
Accrued expenses and other liabilities	7,083	15,679
Income taxes payable	(4,917)	(5,012)
Deferred income taxes	(550)	(434)
Other, net	1,474	(1,467)
Total adjustments	55,536	52,559
Net cash provided by operating activities	81,077	91,256
Cash Flows From Investing Activities
Proceeds from sale of available-for-sale investments	3,042	8,228
Proceeds from call and maturity of held-to-maturity investments	14	41
Proceeds from call and maturity of available-for-sale investments	311,478	374,173
Proceeds from short-term and other investments	1,412	3,833
Purchase of available-for-sale investments	(338,213)	(384,065)
Purchase of short-term and other investments	(415)	(3,583)
Net purchases and sales of property and equipment	(2,825)	(3,711)
Net cash used in investing activities	(25,507)	(5,084)
Policyholders’ account balances
Deposits to investment and universal life contracts	45,467	57,340
Withdrawals from investment and universal life contracts	(81,672)	(129,814)
Payment of cash dividends	(11,898)	(10,503)
Repurchase of common stock	0	(1,443)
Issuance of common stock	6,138	1,375
Tax impact from issuance of common stock	(354)	(319)
Net cash used in financing activities	(42,319)	(83,364)
Net Change in Cash and Cash Equivalents	13,251	2,808
Cash and Cash Equivalents at Beginning of Period	106,449	90,574
Cash and Cash Equivalents at End of Period	$ 119,700	$ 93,382