Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Derivative, Notional Amount	$ 145,930	$ 91,913
Swedish kronor
Derivative, Notional Amount	93,760	59,198
Canadian dollar
Derivative, Notional Amount	21,280	281
Canada, Dollars
Derivative, Notional Amount	14,954	10,799
Brazil, Brazil Real
Derivative, Notional Amount	8,145	6,440
Australian dollar
Derivative, Notional Amount	3,064	10,203
Japan, Yen
Derivative, Notional Amount	2,856	2,342
Brazilian real
Derivative, Notional Amount	836	453
Other
Derivative, Notional Amount	$ 1,035	$ 2,197