Goodwill and Intangible Assets, Estimated Useful Lives (Details)	9 Months Ended
	Sep. 30, 2016
Customer Relationships [Member] | Minimum [Member]
Intangible Assets [Abstract]
Estimated useful lives	3 years
Customer Relationships [Member] | Maximum [Member]
Intangible Assets [Abstract]
Estimated useful lives	10 years
Non-Compete Agreements [Member] | Minimum [Member]
Intangible Assets [Abstract]
Estimated useful lives	3 years
Non-Compete Agreements [Member] | Maximum [Member]
Intangible Assets [Abstract]
Estimated useful lives	5 years
Internally Developed Software [Member] | Minimum [Member]
Intangible Assets [Abstract]
Estimated useful lives	1 year
Internally Developed Software [Member] | Maximum [Member]
Intangible Assets [Abstract]
Estimated useful lives	7 years
Trade Name [Member]
Intangible Assets [Abstract]
Estimated useful lives	1 year
Customer Backlog [Member] | Minimum [Member]
Intangible Assets [Abstract]
Estimated useful lives	9 months
Customer Backlog [Member] | Maximum [Member]
Intangible Assets [Abstract]
Estimated useful lives	12 months