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Derivatives - Narrative (Details)
€ in Millions
1 Months Ended 3 Months Ended
Nov. 30, 2018
USD ($)
Apr. 30, 2017
USD ($)
Dec. 31, 2019
USD ($)
Nov. 30, 2019
USD ($)
derivative_contract
Nov. 30, 2019
EUR (€)
derivative_contract
Interest rate contracts          
Derivative [Line Items]          
Notional amount $ 139,000,000.0 $ 60,000,000.0      
Term of derivative contract 5 years 3 years      
Derivative fixed interest rate (as a percent) 3.09% 1.58%      
Derivative quarterly reduction amount     $ 5,000,000.0    
Cross-currency swaps          
Derivative [Line Items]          
Notional amount       $ 25,000,000 € 22.6
Number of instruments held | derivative_contract       3 3
Aggregate notional amount       $ 75,000,000 € 67.8