Derivatives (Classification on the Consolidated Statements of Operations) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative financial instruments on consolidated statements of operations
Foreign currency transaction gain (loss)	$ 300,000	$ 100,000
Other Expense | Foreign exchange contracts | Designated as hedge
Derivative financial instruments on consolidated statements of operations
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Effective Portion)	(452,000)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Earnings (Effective Portion)	0
Other Expense | Foreign exchange contracts | Not designated as hedge
Derivative financial instruments on consolidated statements of operations
Amount of Gain or (Loss) Recognized in Income	1,498,000	10,156,000
Interest Expense | Interest rate cap | Designated as hedge
Derivative financial instruments on consolidated statements of operations
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Effective Portion)	(962,000)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Earnings (Effective Portion)	0
Interest Expense | Interest rate swap | Designated as hedge
Derivative financial instruments on consolidated statements of operations
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Effective Portion)	(348,000)	37,000
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Earnings (Effective Portion)	$ 135,000	$ 74,000