Income Taxes (Significant Components of the Company's Net Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Postretirement benefit obligation	$ 4.8	$ 6.2
Inventory	12.0	13.7
Net operating loss and credit carryforwards	6.1	6.3
Warranty reserve	1.9	2.5
Accrued litigation	2.9	1.9
Compensation	6.0	6.0
Other	11.0	10.6
Total deferred tax assets	44.7	47.2
Deferred tax liabilities:
Depreciation and amortization	15.2	13.2
Pension	21.0	23.3
Goodwill	2.5	2.7
Intangible assets	16.8	14.5
Other	1.6	1.4
Total deferred tax liabilities	57.1	55.1
Net deferred tax liabilities prior to valuation allowances	(12.4)	(7.9)
Valuation allowances	(4.8)	(7.1)
Net deferred tax liability	$ (17.2)	$ (15.0)