Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2013		Sep. 30, 2012
Activity Related to the intangible assets
Balance at beginning of period	$ 27,550		$ 23,259
Acquisition	26,350		11,850
Amortization	(4,062)	[1]	(3,810)	[1]
Balance at end of period	49,838		31,299
Customer Relationships [Member]
Activity Related to the intangible assets
Balance at beginning of period	13,128		7,805
Acquisition	2,800		9,450
Amortization	(2,149)	[1]	(2,020)	[1]
Balance at end of period	13,779		15,235
Trade Name & Contracts [Member]
Activity Related to the intangible assets
Balance at beginning of period	906		162
Acquisition	1,350		1,250
Amortization	(183)	[1]	(330)	[1]
Balance at end of period	2,073		1,082
Software Technology [Member]
Activity Related to the intangible assets
Balance at beginning of period	13,516		15,292
Acquisition	22,200		1,150
Amortization	(1,730)	[1]	(1,460)	[1]
Balance at end of period	$ 33,986		$ 14,982

[1] Amortization of the customer relationships and the trade name & contracts intangible assets is included in operating expenses and amortization of the software technology intangible assets is included in cost of revenue for software and hardware.