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Debt - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Debt Instrument [Line Items]          
Unrealized pre-tax gain (loss) on interest rate swap cash flow hedges, recorded in accumulated other comprehensive loss $ 0.1 $ 0.1 $ 1.2 $ (4.3)  
Interest rate swap liability, fair value 1.8   $ 1.8   $ 3.0
2019 Credit Agreement | Minimum          
Debt Instrument [Line Items]          
Line of credit facility, unused capacity, commitment fee percentage     0.10%    
2019 Credit Agreement | Maximum          
Debt Instrument [Line Items]          
Line of credit facility, unused capacity, commitment fee percentage     0.25%    
2019 Credit Agreement | Base Rate | Minimum          
Debt Instrument [Line Items]          
Base rate borrowings margin range     0.00%    
2019 Credit Agreement | Base Rate | Maximum          
Debt Instrument [Line Items]          
Base rate borrowings margin range     0.75%    
2019 Credit Agreement | LIBOR | Minimum          
Debt Instrument [Line Items]          
Base rate borrowings margin range     1.00%    
2019 Credit Agreement | LIBOR | Maximum          
Debt Instrument [Line Items]          
Base rate borrowings margin range     1.75%    
2019 Credit Agreement | Revolving Credit Facility          
Debt Instrument [Line Items]          
Credit facility maximum borrowings 500.0   $ 500.0    
Credit facility outstanding amount 250.2   250.2   209.4
Remaining borrowing capacity 239.5   239.5   280.3
2019 Credit Agreement | Letter of Credit          
Debt Instrument [Line Items]          
Credit facility outstanding amount 10.3   10.3   $ 10.3
Interest Rate Swap          
Debt Instrument [Line Items]          
Credit facility outstanding amount 75.0   75.0    
Interest rate swap, notional amount $ 75.0   $ 75.0