Intangible Assets - Schedule of Gross Amount and Accumulated Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 463,268	$ 463,268
Accumulated Amortization	(226,240)	(203,410)
Net Carrying Amount	237,028	259,858
Backlog
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	109,255	109,255
Accumulated Amortization	(91,704)	(87,510)
Net Carrying Amount	$ 17,551	21,745
Amortization Period (in years)	3 years
Customer Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 228,529	228,529
Accumulated Amortization	(78,533)	(67,809)
Net Carrying Amount	$ 149,996	160,720
Amortization Period (in years)	7 years
Leases
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 670	670
Accumulated Amortization	(585)	(580)
Net Carrying Amount	$ 85	90
Amortization Period (in years)	5 years
Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 110,939	110,939
Accumulated Amortization	(47,799)	(40,749)
Net Carrying Amount	$ 63,140	70,190
Amortization Period (in years)	4 years
Trade Name
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,200	8,200
Accumulated Amortization	(6,242)	(5,667)
Net Carrying Amount	$ 1,958	2,533
Amortization Period (in years)	1 year
Non compete Agreements
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,600	3,600
Accumulated Amortization	(1,200)	(925)
Net Carrying Amount	$ 2,400	2,675
Amortization Period (in years)	3 years
In Process Research and Development
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,800	1,800
Accumulated Amortization	0	0
Net Carrying Amount	1,800	1,800
Other Intangibles
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	275	275
Accumulated Amortization	(177)	(170)
Net Carrying Amount	$ 98	$ 105
Amortization Period (in years)	10 years