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Fair Value (Details) - Derivatives designated as hedging instrument - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Derivative assets:    
Total derivative assets $ 227 $ 0
Derivative liabilities:    
Total derivative liabilities 2,486 3,704
Cash flow hedging | Other long-term assets | Interest rate caps    
Derivative assets:    
Total derivative assets 227 0
Cash flow hedging | Accrued liabilities | Interest rate caps    
Derivative liabilities:    
Total derivative liabilities 1,950 1,954
Cash flow hedging | Other long-term liabilities | Interest rate caps    
Derivative liabilities:    
Total derivative liabilities $ 536 $ 1,750