XML 54 R43.htm IDEA: XBRL DOCUMENT v3.21.1
Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]        
Cash and cash equivalents $ 54.2 $ 14.9 $ 43.8 $ 23.3
Restricted cash included in other assets 2.0 1.4 1.5 1.4
Total cash and cash equivalents and restricted cash 56.2 16.3 45.3 24.7
Cash and cash equivalents classified in assets held for sale   172.1   216.0
Restricted cash classified in Assets held for sale 0.0 0.1 0.2 0.2
Total cash and cash equivalents and restricted cash classified in Assets held for sale 213.7 172.2 $ 195.4 $ 216.2
Supplemental cash flow information:        
Cash paid for interest 10.5 5.5    
Cash paid for taxes, net of refunds 0.7 0.1    
Non-cash investing and financing activities:        
Property, plant and equipment included in accounts payable 0.2 6.6    
Extinguishment of convertible note in exchange 51.8 0.0    
Issuance of convertible note in exchange $ (51.8) $ 0.0