Summary of Lease Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Right of use assets		$ 104.7	$ 107.0	$ 55.0
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]		us-gaap:OtherAssetsNoncurrent
Current lease liabilities		$ 17.3
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]		us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
Long-term lease liabilities		$ 96.4
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]		us-gaap:OtherLiabilitiesNoncurrent
Total lease liabilities		$ 113.7	$ 109.0	$ 57.0
Weighted-average remaining lease term (years)		9 years 8 months 12 days
Weighted-average discount rate		5.70%
Lease cost	[1]	$ 5.6
Leased assets obtained in exchange for new lease liabilities		1.3
Cash paid for amounts included in the measurement of lease liabilities		$ 6.0

[1] Lease expense is included in cost of sales or selling, general and administrative expenses based on the nature of the lease.  Short term lease expense is excluded from this amount and is not material.  The Company also has certain variable leases which are not material.  The noncash component of lease expense is included in the Amortization caption in the Statement of Cash Flows.