Derivatives (Derivatives) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Designated as hedge
Derivative financial instruments on consolidated balance sheets
Derivative Assets, Fair Value	$ 0	$ 52
Derivative Liabilities, Fair Value	75	478
Designated as hedge | Foreign exchange contracts | Other Assets
Derivative financial instruments on consolidated balance sheets
Derivative Assets, Fair Value	0	0
Designated as hedge | Foreign exchange contracts | Other Liabilities
Derivative financial instruments on consolidated balance sheets
Derivative Liabilities, Fair Value	21	478
Designated as hedge | Interest rate swaps | Other Assets
Derivative financial instruments on consolidated balance sheets
Derivative Assets, Fair Value	0	52
Designated as hedge | Interest rate swaps | Other Liabilities
Derivative financial instruments on consolidated balance sheets
Derivative Liabilities, Fair Value	54	0
Not designated as hedge
Derivative financial instruments on consolidated balance sheets
Derivative Assets, Fair Value	2,204	6,309
Derivative Liabilities, Fair Value	609	0
Not designated as hedge | Foreign exchange contracts | Other Assets
Derivative financial instruments on consolidated balance sheets
Derivative Assets, Fair Value	0	1,534
Not designated as hedge | Foreign exchange contracts | Other Liabilities
Derivative financial instruments on consolidated balance sheets
Derivative Liabilities, Fair Value	609	0
Not designated as hedge | Interest rate cap | Other Assets
Derivative financial instruments on consolidated balance sheets
Derivative Assets, Fair Value	2,204	4,775
Not designated as hedge | Interest rate cap | Other Liabilities
Derivative financial instruments on consolidated balance sheets
Derivative Liabilities, Fair Value	$ 0	$ 0