Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash Flows From Operating Activities
Net income	$ 24,341	$ 49,614
Adjustments to reconcile net income to net cash provided by operating activities
Net accretion of bond premium	10,985	11,715
Depreciation and amortization	5,449	4,120
Stock-based compensation expense	1,445	1,436
Net realized investment gains	(5,796)	(7,250)
Net cash flows from trading investments	(6,933)	3,836
Deferred income tax benefit	(2,639)	(4,352)
Changes in:
Accrued investment income	398	1,311
Premiums receivable	(39,945)	(45,458)
Deferred policy acquisition costs	(10,219)	(4,640)
Reinsurance receivables	3,384	13,578
Prepaid reinsurance premiums	(552)	(475)
Income taxes receivable	(3,173)	13,612
Other assets	482	134
Future policy benefits and losses, claims and loss settlement expenses	70,994	28,404
Unearned premiums	49,974	42,486
Accrued expenses and other liabilities	(9,153)	9,027
Deferred income taxes	(1,330)	4,743
Other, net	(368)	(3,814)
Total adjustments	63,003	68,413
Net cash provided by operating activities	87,344	118,027
Cash Flows From Investing Activities
Proceeds from sale of available-for-sale investments	3,091	23,007
Proceeds from call and maturity of held-to-maturity investments	243	557
Proceeds from call and maturity of available-for-sale investments	390,967	370,531
Proceeds from short-term and other investments	2,370	2,569
Purchase of available-for-sale investments	(432,112)	(468,934)
Purchase of short-term and other investments	(2,803)	(3,475)
Net purchases and sales of property and equipment	(5,692)	(4,589)
Net cash used in investing activities	(43,936)	(80,334)
Policyholders’ account balances
Deposits to investment and universal life contracts	131,134	97,893
Withdrawals from investment and universal life contracts	(170,570)	(146,001)
Payment of cash dividends	(14,672)	(12,910)
Repurchase of common stock	(11,249)	(99)
Issuance of common stock	1,782	3,075
Tax impact from issuance of common stock	(94)	(426)
Net cash used in financing activities	(63,669)	(58,468)
Net Change in Cash and Cash Equivalents	(20,261)	(20,775)
Cash and Cash Equivalents at Beginning of Period	92,193	107,466
Cash and Cash Equivalents at End of Period	$ 71,932	$ 86,691