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Cash, Cash Equivalents and Restricted Cash (Tables)
 6 Months Ended
Jun. 30, 2024
Cash, Cash Equivalents and Restricted Cash [Abstract]  
Schedule of Cash and Cash Equivalents
The following table summarizes the Company’s cash, cash equivalents and restricted cash as presented on the Consolidated Balance Sheets to amounts on the Consolidated Statements of Cash Flows (in millions):
June 30, 2024December 31, 2023
Cash and cash equivalents$227.0 $201.2 
Deposits for financial assurance - current (a)30.0 0.2 
Deposits for financial assurance - noncurrent2.6 32.4 
Total cash, cash equivalents and restricted cash$259.6 $233.8 
Schedule of Restricted Cash and Cash Equivalents
The following table provides additional detail regarding the Company’s deposits for financial assurance (in millions):
June 30, 2024December 31, 2023
CurrentLong-TermCurrentLong-Term
Collateral for Inventory Loans$29.8 $— $— $29.8 
Workers Compensation— 2.5 — 2.5 
Other0.2 0.1 0.2 0.1 
Total deposits for financial assurance$30.0 $2.6 $0.2 $32.4