XML 43 R32.htm IDEA: XBRL DOCUMENT v3.21.1
Cash, Cash Equivalents and Restricted Cash (Schedule of Cash, Cash Equivalents and Restricted Cash) (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Cash and Cash Equivalents [Line Items]          
Cash and cash equivalents $ 163.3 $ 152.0 $ 109.2    
Restricted cash included in other current assets 0.2   0.2    
Restricted cash included in other long-term assets 5.7   5.7    
Total cash, cash equivalents and restricted cash $ 169.2 $ 157.9 $ 115.1 $ 136.6 $ 115.1