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Debt and Credit Arrangements - Senior Secured Revolving Credit Facility and Term Loan (Details) - USD ($)
3 Months Ended
Jun. 14, 2019
Mar. 31, 2020
Dec. 31, 2019
Revolving Credit Facility | Credit Facilities 2019      
Debt Instrument      
Maximum percentage of capital stock guaranteed by company   65.00%  
Unamortized debt issuance costs   $ 5,200,000 $ 5,500,000
Revolving Credit Facility | Credit Facilities 2019 | Adjusted Base Rate | Minimum      
Debt Instrument      
Debt instrument variable interest rate (percent) 0.25%    
Revolving Credit Facility | Credit Facilities 2019 | Adjusted Base Rate | Maximum      
Debt Instrument      
Debt instrument variable interest rate (percent) 1.25%    
Revolving Credit Facility | Credit Facilities 2019 | LIBOR | Minimum      
Debt Instrument      
Debt instrument variable interest rate (percent) 1.25%    
Revolving Credit Facility | Credit Facilities 2019 | LIBOR | Maximum      
Debt Instrument      
Debt instrument variable interest rate (percent) 2.25%    
Revolving Credit Facility | Term loan      
Debt Instrument      
Maximum borrowing capacity $ 450,000,000.0    
Debt issuance costs   $ 6,100,000  
Debt instrument term   5 years  
Revolving Credit Facility | Senior secured revolving credit facility      
Debt Instrument      
Maximum borrowing capacity 550,000,000.0    
Payments for debt issuance costs   $ 7,500,000  
Unamortized debt issuance costs   $ 8,500,000  
Debt instrument term   5 years  
Revolving Credit Facility | Senior secured revolving credit facility due 2022      
Debt Instrument      
Unamortized debt issuance costs   $ 2,500,000  
Revolving Credit Facility Sub-limit - Letters of Credit | Senior secured revolving credit facility      
Debt Instrument      
Maximum borrowing capacity 100,000,000.0    
Revolving Credit Facility Sub-limit - Discretionary Letters of Credit | Senior secured revolving credit facility      
Debt Instrument      
Maximum borrowing capacity 250,000,000.0    
Revolving Credit Facility Sub-limit - Swingline | Senior secured revolving credit facility      
Debt Instrument      
Maximum borrowing capacity $ 50,000,000.0