Provision for Credit Losses - Schedule of Reconciliation of Provision for Credit Losses (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Credit Loss [Abstract]
Balance at January 1, 2020	$ 3.5
Current period provision	0.6
Write-offs charged against allowance	(0.5)
Effect of foreign exchange rates	(0.1)
Balance at March 31, 2020	$ 3.5