XML 86 R71.htm IDEA: XBRL DOCUMENT v3.20.4
Debt - Schedule of Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Long-term debt, gross $ 255.7 $ 258.0
Less: unamortized debt issuance costs 0.5 0.7
Total debt 255.2 257.3
Less: current portion of long-term debt 2.3 2.3
Long-term debt, net $ 252.9 255.0
Term Loan, due December 31, 2024 (1.13%)    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 1.13%  
Long-term debt, gross $ 87.7 90.0
Less: current portion of long-term debt 2.3  
Long-term debt, net $ 85.4  
Series A notes, due July 5, 2022 (3.67%)    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 3.67%  
Long-term debt, gross $ 42.0 42.0
Series B notes, due July 5, 2024 (3.82%)    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 3.82%  
Long-term debt, gross $ 53.0 53.0
Series C notes, due July 5, 2027 (4.02%)    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate 4.02%  
Long-term debt, gross $ 73.0 $ 73.0