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Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2021
Accounting Policies [Abstract]  
Schedule of Restricted Cash and Cash Equivalents
The following table provides a reconciliation of cash and cash equivalents and restricted cash to amounts reported within the Consolidated Balance Sheets and Consolidated Statements of Cash Flows (in millions):
March 31,
20212020
Cash and cash equivalents, beginning of period$43.8 $23.3 
Restricted cash included in other assets1.5 1.4 
Total cash and cash equivalents and restricted cash$45.3 $24.7 
Cash and cash equivalents, end of period$54.2 $14.9 
Restricted cash included in other assets2.0 1.4 
Total cash and cash equivalents and restricted cash$56.2 $16.3 
Cash and cash equivalents classified in Assets held for sale, beginning of period$195.2 $216.0 
Restricted cash classified in Assets held for sale0.2 0.2 
Total cash and cash equivalents and restricted cash classified in Assets held for sale$195.4 $216.2 
Cash and cash equivalents classified in Assets held for sale, end of period$213.7 $172.1 
Restricted cash classified in Assets held for sale— 0.1 
Total cash and cash equivalents and restricted cash classified in Assets held for sale$213.7 $172.2 
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 $— 
Issuance of convertible note in exchange$(51.8)$— 
Schedule of Cash and Cash Equivalents
The following table provides a reconciliation of cash and cash equivalents and restricted cash to amounts reported within the Consolidated Balance Sheets and Consolidated Statements of Cash Flows (in millions):
March 31,
20212020
Cash and cash equivalents, beginning of period$43.8 $23.3 
Restricted cash included in other assets1.5 1.4 
Total cash and cash equivalents and restricted cash$45.3 $24.7 
Cash and cash equivalents, end of period$54.2 $14.9 
Restricted cash included in other assets2.0 1.4 
Total cash and cash equivalents and restricted cash$56.2 $16.3 
Cash and cash equivalents classified in Assets held for sale, beginning of period$195.2 $216.0 
Restricted cash classified in Assets held for sale0.2 0.2 
Total cash and cash equivalents and restricted cash classified in Assets held for sale$195.4 $216.2 
Cash and cash equivalents classified in Assets held for sale, end of period$213.7 $172.1 
Restricted cash classified in Assets held for sale— 0.1 
Total cash and cash equivalents and restricted cash classified in Assets held for sale$213.7 $172.2 
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 $— 
Issuance of convertible note in exchange$(51.8)$—