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Other Balance Sheet Accounts - Other Current Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Non-trade receivables $ 21.7 $ 22.5
Prepaid expenses and other current assets 12.6 11.4
Income taxes receivable 11.4 12.0
Total other current assets $ 45.7 $ 45.9