Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments (Details)

v3.6.0.2
Derivative Financial Instruments (Details)
$ in Thousands
Dec. 31, 2016
contract
Dec. 31, 2015
USD ($)
Derivatives, Fair Value [Line Items]    
Derivative contracts outstanding | contract 0  
Accrued Liabilities    
Derivatives, Fair Value [Line Items]    
Derivative, Notional Amount   $ 11,870
Derivative, Fair Value   (140)
Derivatives designated as hedging instruments | Accrued Liabilities    
Derivatives, Fair Value [Line Items]    
Derivative, Notional Amount   9,702
Derivative, Fair Value   (114)
Derivatives not designated as hedging instruments | Accrued Liabilities    
Derivatives, Fair Value [Line Items]    
Derivative, Notional Amount   2,168
Derivative, Fair Value   $ (26)