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	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Other Comprehensive Income (Loss) [Abstract]
URA(D) of investments - temporary	$ 28,226	$ 12,125	$ 38,926	$ 49,825
URA(D) of investments - non-credit OTTI	(77)	(137)	(146)	(132)
Tax benefit (expense) from URA(D) arising during the period	(9,852)	(4,195)	(13,573)	(17,392)
Total URA(D) on securities arising during the period	18,297	7,793	25,207	32,301
Foreign currency translation adjustments	23,540	(7,012)	19,596	7,224
Tax benefit (expense) from foreign currency translation	(8,239)	2,454	(6,859)	(2,529)
Net foreign currency translation adjustments	15,301	(4,558)	12,737	4,695
Pension adjustments	1,844	1,148	4,871	3,443
Tax benefit (expense) on pension	(645)	(402)	(1,705)	(1,205)
Net pension adjustments	1,199	746	3,166	2,238
Other comprehensive income (loss), net of tax	$ 34,797	$ 3,981	$ 41,110	$ 39,234

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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