Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value

			Basis of fair value measurements
(in millions)	Balance at September 30, 2018		Quoted prices in active markets for identical items (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)		Valuation technique
Assets:
Foreign currency contracts	$	1.3	$	—	$	1.3	$	—	A
Net investment hedge contracts	$	10.7	$	—	$	10.7	$	—	A
Other long-term receivables (insurance settlement agreement note receivable)	$	43.7	$	—	$	43.7	$	—	C
Liabilities:
Foreign currency contracts	$	3.3	$	—	$	3.3	$	—	A
Net investment hedge contracts	$	0.3	$	—	$	0.3	$	—	A
Commodity contracts	$	0.2	$	—	$	0.2	$	—	A

			Basis of fair value measurements
(in millions)	Balance at December 31, 2017		Quoted prices in active markets for identical items (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)		Valuation technique
Assets:
Foreign currency contracts	$	1.7	$	—	$	1.7	$	—	A
Other long-term receivables (insurance settlement agreement note receivable)	$	42.9	$	—	$	42.9	$	—	C
Liabilities:
Foreign currency contracts	$	5.0	$	—	$	5.0	$	—	A