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Sales - Contract liabilities (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2022
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]      
Deferred revenue - current $ 141.8 $ 141.8 $ 133.7
Deferred revenue - noncurrent 48.4 48.4 56.3
Total contract liabilities 190.2 190.2 $ 190.0
Contract liabilities, revenue recognized $ 22.8 $ 102.1