Goodwill and Other Intangible Assets - Schedule of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Mar. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 160,425	$ 104,965
Accumulated Amortization	(68,054)	(57,401)
Net Carrying Amount	92,371	47,564
Trademark and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	23,790	16,500
Accumulated Amortization	(8,719)	(6,933)
Net Carrying Amount	15,071	9,567
Developed Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	76,875	63,285
Accumulated Amortization	(48,352)	(42,831)
Net Carrying Amount	28,523	20,454
Customer contracts/relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	59,760	25,180
Accumulated Amortization	(10,983)	(7,637)
Net Carrying Amount	$ 48,777	$ 17,543