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Leases Leases (Tables)
 12 Months Ended
Dec. 31, 2022
Leases [Abstract]  
Components of Lease Expense
The components of lease expense are as follows (in millions):
SuccessorPredecessor
Year Ended December 31, 2022Eight Months Ended December 31, 2021Four Months Ended April 30, 2021Year Ended December 31, 2020
Long-term operating lease cost$13.4 $12.9 $9.1 $23.3 
Short-term operating lease cost16.2 15.3 7.0 19.2 
Sublease income(0.4)(0.3)(0.1)(2.3)
Total operating lease cost$29.2 $27.9 $16.0 $40.2 
Supplemental Balance Sheet Information
Supplemental balance sheet information related to our operating leases is as follows (in millions, except lease term and discount rate):
December 31, 2022December 31, 2021
Operating lease right-of-use assets$21.0 $20.5 
Current lease liability$9.4 $10.0 
Long-term lease liability13.8 12.5 
Total operating lease liabilities$23.2 $22.5 
Weighted-average remaining lease term (in years)5.04.8
Weighted-average discount rate (1)
7.48 %7.27 %

(1)Represents our estimated incremental borrowing cost on a secured basis for similar terms as the underlying leases.
Maturities of Lease Liabilities
Maturities of lease liabilities as of December 31, 2022 (Successor) were as follows (in millions):
2023$10.7 
20243.5 
20252.7 
20262.4 
20272.4 
Thereafter6.1 
Total lease payments$27.8 
Less imputed interest(4.6)
Total$23.2