Schedule - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 22.3	$ 22.7	$ 22.8
Additions Charged (Credited) to Expense	13.5	2.0	1.9
Deductions to Reserve	(0.4)	(1.4)	(1.5)
Effects of Foreign Currency	(1.3)	(1.0)	(0.5)
Balance at End of Period	34.1	22.3	22.7
Deferred Tax Asset Valuation Allowances [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	122.8	42.7	41.3
Additions Charged (Credited) to Expense	(53.7)	74.7	1.5
Deductions to Reserve	(5.6)	(9.2)	(0.1)
Effects of Foreign Currency	(1.6)
Acquired Allowances	10.8	14.6
Balance at End of Period	$ 72.7	$ 122.8	$ 42.7