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Long-Term Debt - Narrative (Details) - USD ($)
Nov. 07, 2019
Oct. 27, 2019
Jan. 27, 2019
Nov. 15, 2016
Amounts outstanding   $ 198,250,000 $ 212,312,000  
Term loans        
Facilities, maximum borrowing capacity       $ 150,000,000.0
Amounts outstanding   101,250,000 115,312,000  
Revolving loans        
Facilities, maximum borrowing capacity       $ 250,000,000.0
Undrawn revolving commitments   153,000,000.0    
Amounts outstanding   97,000,000.0 $ 97,000,000  
Swingline Loans        
Long-term line of credit   0    
Foreign Line of Credit        
Long-term line of credit   $ 0    
Subsequent Event | Revolving loans        
Facilities, maximum borrowing capacity $ 600,000,000