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Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Interest Rate Swap Agreements - Fair Value, Measurements, Recurring - Level 2 - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Derivatives Designated as Effective Hedging Instruments    
Liabilities:    
Liabilities measured at fair value $ 20,377 $ 16,238
Derivatives Not Designated as Hedging Instruments    
Liabilities:    
Liabilities measured at fair value $ 16,260