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Fair Value Measurement - Narrative (Details)
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
May 31, 2019
USD ($)
contract
Fair Value Measurement        
Notional amount $ 222,300,000      
Impairment loss as a result of goodwill 0 $ 0 $ 0  
Interest rate contract        
Fair Value Measurement        
Interest rate collar contracts | contract       3
Notional amount       $ 222,300,000
Gain (loss) reclassified from accumulated other comprehensive loss 0      
Impairment charges $ 0