Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements and Derivatives - Effects of Foreign Currency Collar Designated as Cash Flow Hedges (Details 6)

v3.7.0.1
Fair Value Measurements and Derivatives - Effects of Foreign Currency Collar Designated as Cash Flow Hedges (Details 6) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Cash Flow Hedging | Designated as Hedging Instrument | Foreign Currency Collar    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount reclassified from accumulated other comprehensive income (loss) into depreciation and amortization expense $ (91) $ (91)