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Derivative Instruments and Hedging Activities Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Derivative [Line Items]        
Unrealized gain (loss) on derivative instruments $ 1,800 $ (400) $ (10,600) $ (6,900)
Designated as Hedging Instrument | Cash Flow Hedging        
Derivative [Line Items]        
Unrealized gain (loss) on derivative instruments $ 1,800 $ (400) $ (10,600) $ (6,900)