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Derivative Financial Instruments - Summary of Effect of Derivative Financial Instruments on the Condensed Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Designated as Hedging Instrument | Interest Rate Swaps and Collars        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain or (Loss) Recognized in OCI on Derivative $ (136) $ 636 $ (3,145) $ 4,143
Location of Gain or (Loss) Reclassified from Accumulated OCI into Income Interest expense   Interest expense  
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Net Income $ 224 299 $ 1,149 526
Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion Excluded from Effectiveness Testing) N/A   N/A  
Designated as Hedging Instrument | Cross Currency Swaps        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain or (Loss) Recognized in OCI on Derivative     $ (298)  
Location of Gain or (Loss) Reclassified from Accumulated OCI into Income N/A   N/A  
Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion Excluded from Effectiveness Testing) Interest income   Interest income  
Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)     $ 688  
Not Designated as Hedging Instrument | Foreign Currency Forward Contracts        
Derivative Instruments Gain Loss [Line Items]        
Amount of Gain or (Loss) Recognized in Net Income $ (2,563) $ (2,200) $ (3,793) $ (7,570)
Location of Gain or (Loss) Recognized in Net Income Foreign currency loss, net   Foreign currency loss, net