Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income	$ 72,540	$ 71,180
Adjustments to reconcile net income to cash provided by operating activities:
Provision for policy losses and other claims	218,349	314,792
Depreciation and amortization	39,752	36,587
Amortization of premiums and accretion of discounts on securities, net	11,967	11,872
Excess tax benefits from share-based compensation	(5,827)	(5,681)
Share-based compensation	12,519	14,344
Net realized investment gains	(9,902)	(13,778)
Net OTTI losses recognized in earnings	1,033
Equity in earnings of affiliates, net	1,748	(7,136)
Dividends from equity method investments	3,471	5,137
Changes in assets and liabilities excluding effects of acquisitions and noncash transactions:
Claims paid, including assets acquired, net of recoveries	(240,144)	(224,739)
Net change in income tax accounts	33,493	28,967
Increase in accounts and accrued income receivable	(11,439)	(8,682)
Decrease in accounts payable and accrued liabilities	(74,174)	(56,146)
(Decrease) increase in deferred revenue	(5,017)	2,327
Other, net	(3,476)	(10,610)
Cash provided by operating activities	44,893	158,434
Cash flows from investing activities:
Net cash effect of acquisitions/dispositions	(166,354)	(150)
Net increase in deposits with banks	(256)	(2,419)
Net decrease in loans receivable	14,914	22,642
Purchases of debt and equity securities	(592,381)	(701,372)
Proceeds from sales of debt and equity securities	386,744	286,705
Proceeds from maturities of debt securities	173,644	271,004
Net change in other long-term investments	1,364	1,974
Capital expenditures	(40,063)	(38,879)
Proceeds from sale of property and equipment	13	5,071
Cash used for investing activities	(222,375)	(155,424)
Cash flows from financing activities:
Net change in deposits	269,779	171,454
Proceeds from issuance of debt	300,735	249,095
Repayment of debt	(156,476)	(163,761)
Net payments in connection with share-based compensation plans	(911)	(4,488)
Net activity related to noncontrolling interests	(633)	(504)
Excess tax benefits from share-based compensation	5,827	5,681
Purchase of Company shares		(17,485)
Cash dividends	(38,441)	(25,934)
Cash provided by financing activities	379,880	214,058
Effect of exchange rate changes on cash	4,024	(5,823)
Net increase in cash and cash equivalents	206,422	211,245
Cash and cash equivalents—Beginning of period	834,837	670,529
Cash and cash equivalents—End of period	1,041,259	881,774
Supplemental information:
Interest	8,346	2,657
Premium taxes	36,825	33,913
Income taxes, less refunds of $1,016 and $461	$ 5,827	$ 18,208