Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jul. 01, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 2.8	$ 4.2
Estimated amortization expense - 2017	4.0
Estimated amortization expense - 2018	2.7
Estimated amortization expense - 2019	2.7
Estimated amortization expense - 2020	2.7
Estimated amortization expense - 2021	2.7
Estimated amortization expense, thereafter	1.4
Capitalized software	$ 9.2		$ 8.8
Trade Names
Finite-Lived Intangible Assets [Line Items]
Weighted average useful life of the amortized intangible assets	10 years
Customer Relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	7 years
Customer Relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	12 years
Computer Software
Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets useful life	3 years