Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Balance as of January 1	$ 49,943	$ 105,779
Additions based on tax positions related to the current year	306	4,028
Additions for tax positions of prior years	7,907	13,726
Reductions for tax positions of prior years	(926)	(9,273)
Reductions resulting from the lapse of the statute of limitations	(1,391)	(1,517)
Settlements with taxing authorities	(9,752)	(61,063)
Effects of foreign currency translation		(1,737)
Balance as of December 31	$ 46,087	$ 49,943