Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Fair Value Measurement (Schedule of Fair Value Measurements) (Details)

v3.7.0.1
Fair Value Measurement (Schedule of Fair Value Measurements) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative asset (liabilities) $ (1,251) $ (6,665)
Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative asset (liabilities) 1,368 326
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative asset (liabilities) (2,619) (6,991)
Foreign Exchange Future [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets, net 1,440 866
Derivative asset (liabilities) (48) (432)
Foreign Exchange Future [Member] | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets, net 1,440 866
Derivative asset (liabilities) (48) (432)
Foreign Exchange Future [Member] | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets, net
Derivative asset (liabilities)  
Foreign Exchange Future Two [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets, net 37 23
Derivative asset (liabilities) (61) (131)
Foreign Exchange Future Two [Member] | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets, net 37 23
Derivative asset (liabilities) (61) (131)
Foreign Exchange Future Two [Member] | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets, net
Derivative asset (liabilities)  
Obligations in connection with acquisitions [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative asset (liabilities) (2,619) (6,991)
Obligations in connection with acquisitions [Member] | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative asset (liabilities)  
Obligations in connection with acquisitions [Member] | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative asset (liabilities) $ (2,619) $ (6,991)