Acquisition-Related Intangible Assets - Intangible Assets Acquired through Business Combinations (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 20,100
Accumulated Amortization	(583)
Net Carrying Amount	19,517
Acquired developed technology
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,800
Accumulated Amortization	(325)
Net Carrying Amount	7,475
Customer contracts and related relationships
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,300
Accumulated Amortization	(188)
Net Carrying Amount	11,112
Order backlog
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	500
Accumulated Amortization	(42)
Net Carrying Amount	458
Trademarks and trade name
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	500
Accumulated Amortization	(28)
Net Carrying Amount	$ 472