Business Acquisition (Schedule of Identifiable Intangible Assets Acquired as Part of Business Combination) (Details)	12 Months Ended
	Dec. 31, 2016
Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	3 years
Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	10 years
Customer Relationships [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	3 years
Customer Relationships [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	10 years
Order Backlog [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	1 year