Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 48,211	$ 50,498
Accumulated Amortization	(31,701)	(25,879)
Net Carrying Amount	16,510	24,619
Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	28,018	28,005
Accumulated Amortization	(19,736)	(15,723)
Net Carrying Amount	$ 8,282	$ 12,282
Weighted Average Amortization Period	4 years 8 months	4 years 8 months
Customer Contracts [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 16,009	$ 16,008
Accumulated Amortization	(8,857)	(6,873)
Net Carrying Amount	$ 7,152	$ 9,135
Weighted Average Amortization Period	5 years 9 months	5 years 9 months
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,295	$ 1,287
Accumulated Amortization	(1,277)	(1,250)
Net Carrying Amount	$ 18	$ 37
Weighted Average Amortization Period	2 years 7 months	2 years 7 months
Non-compete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,446	$ 1,446
Accumulated Amortization	(1,220)	(936)
Net Carrying Amount	$ 226	$ 510
Weighted Average Amortization Period	1 year 8 months	1 year 8 months
Patents [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,180	$ 3,440
Accumulated Amortization	(376)	(848)
Net Carrying Amount	$ 804	$ 2,592
Weighted Average Amortization Period	11 years	9 years 3 months
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 263	$ 312
Accumulated Amortization	(235)	(249)
Net Carrying Amount	$ 28	$ 63
Weighted Average Amortization Period	3 years	3 years