Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

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

v2.4.0.8
Fair Value Measurements (Schedule of Fair Value Measurements) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Fair value, asset (liability) $ (59,427) $ (28,480)
Level 2 [Member]
   
Fair value, asset (liability) 2,039 545
Level 3 [Member]
   
Fair value, asset (liability) (61,466) (29,025)
Foreign Exchange Future [Member]
   
Derivative assets, net 4,473 301
Derivative liabilities, net (1,482) (1,543)
Foreign Exchange Future [Member] | Level 2 [Member]
   
Derivative assets, net 4,473 301
Derivative liabilities, net (1,482) (1,543)
Foreign Exchange Future [Member] | Level 3 [Member]
   
Derivative assets, net      
Derivative liabilities, net      
Foreign Exchange Future Two [Member]
   
Derivative assets, net   153
Derivative liabilities, net (952)  
Foreign Exchange Future Two [Member] | Level 2 [Member]
   
Derivative assets, net   153
Derivative liabilities, net (952)  
Foreign Exchange Future Two [Member] | Level 3 [Member]
   
Derivative assets, net     
Derivative liabilities, net     
Obligations in connection with acquisitions [Member]
   
Earn-out obligation (61,466) (29,025)
Obligations in connection with acquisitions [Member] | Level 2 [Member]
   
Earn-out obligation      
Obligations in connection with acquisitions [Member] | Level 3 [Member]
   
Earn-out obligation (61,466) (29,025)
Long-term Investments [Member]
   
Derivative assets, net   1,634
Long-term Investments [Member] | Level 2 [Member]
   
Marketable securities   1,634
Long-term Investments [Member] | Level 3 [Member]
   
Marketable securities