Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Intangible assets, other than capitalized software development costs
Gross carrying amount	$ 125,728	$ 50,728
Accumulated amortization	(34,053)	(23,039)
Net intangible assets	91,675	27,689
Customer Relationships [Member]
Intangible assets, other than capitalized software development costs
Gross carrying amount	50,550	22,050
Accumulated amortization	(19,618)	(14,986)
Net intangible assets	30,932	7,064
Trade Name [Member]
Intangible assets, other than capitalized software development costs
Gross carrying amount	7,368	3,368
Accumulated amortization	(2,895)	(2,159)
Net intangible assets	4,473	1,209
Software Technology [Member]
Intangible assets, other than capitalized software development costs
Gross carrying amount	67,810	25,310
Accumulated amortization	(11,540)	(5,894)
Net intangible assets	$ 56,270	$ 19,416