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Debt (Additional Information) (Details)
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 29, 2020
USD ($)
Feb. 17, 2017
USD ($)
Feb. 28, 2017
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jul. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Mar. 31, 2017
USD ($)
Debt Instrument [Line Items]                      
Debt instrument, leverage ratio, maximum   2.75   2.75   2.75          
Borrowings under revolving credit facility       $ 223,000,000   $ 223,000,000       $ 123,000,000  
Interest expense incurred on outstanding debt       1,700,000 $ 2,100,000 2,900,000 $ 4,200,000        
Maximum                      
Debt Instrument [Line Items]                      
Dividends   $ 20,000,000.0                  
Credit Agreement                      
Debt Instrument [Line Items]                      
Variable rate lower range, basis spread   0.375%                  
Variable rate higher range, basis spread   0.75%                  
Third Amended Credit Agreement                      
Debt Instrument [Line Items]                      
Leverage ratio   3.25                  
One-time leverage ratio maximum option   3.50                  
ICR covenant limit   3.00                  
Discretionary principal payments on revolving credit facility       50,000,000.0              
Eurocurrency loans | Credit Agreement                      
Debt Instrument [Line Items]                      
Line of credit, LIBOR rate, minimum basis spread   1.375%                  
Line of credit, LIBOR rate, maximum basis spread   1.75%                  
Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Borrowings                 $ 150,000,000.0    
Revolving Credit Facility | Subsequent Event                      
Debt Instrument [Line Items]                      
Borrowings               $ 98,000,000.0      
Discretionary principal payments on revolving credit facility $ 125,000,000.0                    
Revolving Credit Facility | Third Amended Credit Agreement                      
Debt Instrument [Line Items]                      
Debt instrument, term     5 years                
Maximum borrowing capacity   $ 450,000,000.0                  
Additional borrowing capacity     $ 175,000,000.0                
Revolving Credit Facility | Third Amended Credit Agreement | Minimum                      
Debt Instrument [Line Items]                      
Unused capacity, commitment fee percentage   0.20%                  
Revolving Credit Facility | Third Amended Credit Agreement | Maximum                      
Debt Instrument [Line Items]                      
Unused capacity, commitment fee percentage   0.30%                  
Third Amended Credit Agreement                      
Debt Instrument [Line Items]                      
Outstanding line of credit issuance costs       $ 900,000   $ 900,000       $ 1,200,000  
Interest rate swap contract | Revolving Credit Facility | Third Amended Credit Agreement                      
Debt Instrument [Line Items]                      
Hedged balance on debt instrument                     $ 75,000,000.0
Federal Funds Rate | Credit Agreement                      
Debt Instrument [Line Items]                      
Basis spread on variable rate   0.50%                  
London Interbank Offered Rate (LIBOR) | Third Amended Credit Agreement                      
Debt Instrument [Line Items]                      
Basis spread on variable rate           1.50%          
London Interbank Offered Rate (LIBOR) | Credit Agreement                      
Debt Instrument [Line Items]                      
Basis spread on variable rate   1.00%