Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income	$ 21,852	$ 36,232
Adjustments to reconcile net income to cash used for operating activities:
Provision for policy losses and other claims	89,883	116,026
Depreciation and amortization	19,972	18,395
Amortization of premiums and accretion of discounts on securities, net	6,680	5,825
Excess tax benefits from share-based compensation	(4,036)	(4,148)
Share-based compensation	9,397	9,887
Net realized investment gains	(3,112)	(9,256)
Net OTTI losses recognized in earnings	518
Equity in losses (earnings) of affiliates, net	2,031	(2,650)
Dividends from equity method investments	205	2,214
Changes in assets and liabilities excluding effects of acquisitions and noncash transactions:
Claims paid, including assets acquired, net of recoveries	(123,039)	(111,193)
Net change in income tax accounts	9,625	10,178
Decrease in accounts and accrued income receivable	3,837	11,631
Decrease in accounts payable and accrued liabilities	(133,600)	(123,362)
Decrease in deferred revenue	(13,419)	(8,029)
Other, net	8,585	(2,621)
Cash used for operating activities	(104,621)	(50,871)
Cash flows from investing activities:
Net cash effect of acquisitions/dispositions	(165,858)
Net decrease in deposits with banks	611	285
Net decrease in loans receivable	4,276	15,586
Purchases of debt and equity securities	(202,519)	(284,003)
Proceeds from sales of debt and equity securities	142,938	152,210
Proceeds from maturities of debt securities	74,716	140,890
Net change in other long-term investments	909	875
Capital expenditures	(21,158)	(18,657)
Proceeds from sale of property and equipment		4,742
Cash (used for) provided by investing activities	(166,085)	11,928
Cash flows from financing activities:
Net change in deposits	69,185	148,496
Proceeds from issuance of debt	150,000	249,095
Repayment of debt	(3,210)	(161,326)
Net payments in connection with share-based compensation plans	(402)	(3,184)
Net activity related to noncontrolling interests	(624)	(52)
Excess tax benefits from share-based compensation	4,036	4,148
Cash dividends	(12,759)	(12,927)
Cash provided by financing activities	206,226	224,250
Effect of exchange rate changes on cash	63	(2,221)
Net (decrease) increase in cash and cash equivalents	(64,417)	183,086
Cash and cash equivalents—Beginning of period	834,837	670,529
Cash and cash equivalents—End of period	770,420	853,615
Supplemental information:
Interest	6,543	1,409
Premium taxes	24,156	21,961
Income taxes, less refunds of $89 and $280	$ 3,952	$ 13,193