Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Revenue:
Life premium	$ 513,342		$ 489,058	[1]
Health premium	316,765		329,863	[1]
Other premium	41		99	[1]
Total premium	830,148		819,020	[1]
Net investment income	191,596		188,051	[1]
Realized investment gains	119		16,619	[1]
Other income	669		481	[1]
Total revenue	1,022,532		1,024,171	[1]
Benefits and expenses:
Life policyholder benefits	339,701		320,176	[1]
Health policyholder benefits	242,151		255,718	[1]
Other policyholder benefits	10,045		10,623	[1]
Total policyholder benefits	591,897		586,517	[1]
Amortization of deferred acquisition costs	111,263		104,733	[1]
Commissions, premium taxes, and non-deferred acquisition costs	63,268		59,378	[1]
Other operating expense	56,612		56,956	[1]
Interest expense	19,060		19,049	[1]
Total benefits and expenses	842,100		826,633	[1]
Income before income taxes	180,432		197,538	[1]
Income taxes	(58,784)		(64,682)	[1]
Net income	$ 121,648		$ 132,856	[1]
Basic net income per share (in dollars per share)	$ 0.96	[2]	$ 1.00	[1],[2]
Diluted net income per share (in dollars per share)	$ 0.95	[2]	$ 0.98	[1],[2]
Dividends declared per common share (in dollars per share)	$ 0.14	[2]	$ 0.13	[1],[2]

[1] Certain balances were retrospectively adjusted to give effect to the adoption of new accounting guidance as described in Note G- Adoption of New Accounting Standards

[2] All share and per share information has been adjusted to reflect the three-for-two stock split that was effective July 1, 2014.