Hedging Activities and Fair Value Measurements (Schedule of Gains and (Losses), Net of Income Tax, Associated With Changes in the Fair Value of Debt) (Details) (USD $) In Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Gain (loss), net of income tax, recorded through other comprehensive income	$ (292)	[1]	$ (825)	[1]	$ (170)	[1]	$ (1,912)	[1]
Term Loan, Denominated in Euros ("EUR"), Due 2013 [Member]
Gain (loss), net of income tax, recorded through other comprehensive income	(317)		1,566		(317)		2,637
Balance included in accumulated other comprehensive income at June 30	$ (5,450)		$ (2,809)		$ (5,450)		$ (2,809)

[1] Losses on derivatives reclassified from accumulated other comprehensive income ("AOCI") into income (effective portion) were included in the interest expense line on the face of the Condensed Consolidated Statements of Operations.