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Leases - Summary of Other Supplemental Information Related to Leases (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities    
Operating cash flows for operating leases $ 12.3 $ 8.7
Operating cash flows for finance leases 1.4 1.6
Financing cash flows for finance leases $ 12.4 $ 11.5