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Revolving Credit Facility and Long-Term Debt - Narrative (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Outstanding borrowings $ 440,000  
Credit Agreement    
Debt Instrument [Line Items]    
Outstanding borrowings 440,000  
Available borrowing capacity $ 133,800  
Fixed interest rate percent 2.62% 2.12%
Debt subject to fixed interest rate $ 175,000 $ 175,000
Variable interest rate percent 3.30% 3.52%
Debt subject to variable interest rate $ 265,000 $ 213,500
Term Loan    
Debt Instrument [Line Items]    
Outstanding borrowings 148,125 72,500
Term Loan | Credit Agreement    
Debt Instrument [Line Items]    
Debt instrument, face amount 150,000  
Revolving Credit Facility    
Debt Instrument [Line Items]    
Outstanding borrowings 291,875 $ 316,000
Revolving Credit Facility | Credit Agreement    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 600,000