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Realignment Costs - Schedule of Accrued Liabilities in Company's Consolidated Balance Sheet Included Amounts Related to Realignment Costs (Detail)
$ in Millions
3 Months Ended
Mar. 31, 2020
USD ($)
Restructuring Cost and Reserve [Line Items]  
Balance at December 31, 2019 $ 0.0
Pre-tax charges 43.9
Utilization (7.3)
Foreign currency translation and other (0.1)
Balance at March 31, 2020 $ 36.5