Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Goodwill [Line Items]
Goodwill, Acquired During Period	$ 14.0
Goodwill, Purchase Accounting Adjustments	(1.1)
Goodwill and Other Intangible Assets (Textual) [Abstract]
Amortization expense for intangible assets	18.2	$ 18.1
Future Amortization Expense Year 2015	36.1
Future Amortization Expense Year 2016	30.3
Future Amortization Expense Year 2017	26.0
Future Amortization Expense Year 2018	21.4
Future Amortization Expense Year 2019	17.8
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	0.6
Mobile Industries [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	15.1
2016 Acquisitions [Member]
Goodwill [Line Items]
Goodwill, Purchase Accounting Adjustments	1.7
Other Current Liabilities [Member]
Goodwill and Other Intangible Assets (Textual) [Abstract]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	$ (0.6)