Veloce - Cash Payments and Stock Issuances (Details) - USD ($) shares in Thousands, $ in Thousands		12 Months Ended			45 Months Ended
	Jun. 20, 2012	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2016
Business Acquisition [Line Items]
Stock Issued		$ 2,869	$ 5,625	$ 57,348
Veloce Technologies Inc.
Business Acquisition [Line Items]
Cash Payments		107	9,150		$ 89,400
Stock Issued		2,869	5,625
Total Payments	$ 178,500	$ 2,976	$ 14,775		$ 171,900
Shares of common stock issued (in shares)		517	1,054		11,200