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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Operating Lease, Commitments Our total minimum future lease commitments under operating leases as of December 31, 2021 are as follows:
(In millions) 
YearMinimum Future
Lease Commitments
2022$1.1 
20230.6 
20240.6 
20250.1 
2026— 
Total$2.4