Summary of Lease information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Leases [Abstract]
Lease cost	[1]	$ 6.8	$ 6.0	$ 13.4	$ 11.6
Leased assets obtained in exchange for new lease liabilities	[2]	6.3	55.8	16.5	57.1
Cash paid for amounts included in the measurement of lease liabilities		6.4	$ 6.1	12.6	$ 12.1
Right of use assets		156.9		156.9		$ 150.7
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]						us-gaap:OtherAssetsNoncurrent
Current lease liabilities		17.9		17.9		$ 16.4
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]						us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
Long-term lease liabilities		149.3		149.3		$ 144.0
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]						us-gaap:OtherLiabilitiesNoncurrent
Total lease liabilities		$ 167.2		$ 167.2		$ 160.4
Weighted-average remaining lease term (years)		10 years 10 months 24 days		10 years 10 months 24 days		11 years 1 month 6 days
Weighted-average discount rate		4.80%		4.80%		4.90%

[1] Lease expense is included in cost of sales or SG&A expenses based on the nature of the leased item.  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 for the first six months of 2020 and 2019 was $9.7 and $8.6, respectively, and is included in the Amortization caption in the condensed consolidated statement of cash flows.

[2] In March 2020, the Company approved a capital project to purchase additional machinery and equipment at one of its leased manufacturing facilities. This led to a lease modification to include a renewal option that would extend the lease for an additional five years through 2029.  The modification resulted in an increase to the Company’s right of use assets and corresponding lease liabilities of approximately $7.3 recorded in the first quarter of 2020.  In June 2019, the Company amended an operating lease for one of its manufacturing facilities to extend the lease an additional ten years through 2033.  The amendment resulted in an increase to the Company’s right of use assets and corresponding lease liabilities of approximately $53.0 recorded in the second quarter of 2019.