Other Comprehensive Income (Loss) (Components Of Comprehensive Income (Loss) In The Consolidated Statements Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Other Comprehensive Income (Loss) [Abstract]
URA(D) of investments - temporary, Before Tax	$ 64,113	$ (45,045)
URA (D) on securities - OTTI, Before Tax	76	(228)
Reclassification on net realized losses (gains) included in net income (loss), Before Tax	2,436	(4,919)
Foreign currency translation adjustments, Before Tax	(6,856)	(25,156)
Reclassification of benefit plan liability amortization included in net income (loss), Before Tax	1,186	2,070
Total other comprehensive income (loss), Before Tax	60,955	(73,278)
URA(D) of investments - temporary, Tax Effect	(10,718)	(1,563)
URA (D) on securities - OTTI, Tax Effect		34
Reclassification on tax expense (benefit) on realized losses (gains) included in net income (loss)	(562)	828
Foreign currency translation adjustments, Tax Effect	4,219	4,090
Reclassification of benefit plan liability amortization included in net income (loss), Tax Effect	(415)	(724)
Total other comprehensive income (loss), Tax Effect	(7,476)	2,665
URA(D) of investments - temporary, Net of Tax	53,395	(46,608)
URA (D) on securities - OTTI, Net of Tax	76	(194)
Reclassification on net realized losses (gains) included in net income (loss), Net of Tax	1,874	(4,091)
Foreign currency translation adjustments, Net of Tax	(2,637)	(21,066)
Reclassification of benefit plan liability amortization included in net income (loss), Net of Tax	771	1,346
Total other comprehensive income (loss), net of tax	$ 53,479	$ (70,613)