Nature of Operations and Significant Accounting Policies (Recently Adopted Accounting Pronouncements) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption					$ 6.7					$ 6.7
Contract assets	$ 55.8				54.9				$ 55.8	54.9
Cost of Goods and Services Sold	548.1	$ 494.4	$ 535.0	$ 526.6	544.6	$ 544.8	$ 545.6	$ 521.2	2,104.1	2,156.2	$ 1,770.9
Inventory, Net	457.3				411.5				457.3	411.5
Other Assets, Current	79.5				76.2				79.5	76.2
Operating right-of-use assets	112.6								112.6
Operating lease, liability	$ 115.5								$ 115.5
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption					$ 6.7					$ 6.7
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating right-of-use assets												$ 109.1
Operating lease, liability												$ 110.4