Veloce - Additional Information (Details) - Veloce Technologies Inc - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended		40 Months Ended
	Jun. 20, 2012	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015
Business Acquisition [Line Items]
Total purchase consideration	$ 178,500	$ 1,972	$ 1,397	$ 2,958	$ 8,114	$ 171,900
Cash payments		$ 25	$ 1,116	$ 90	$ 7,499	$ 89,400
Stock issued (in shares)		354	38	517	77	11,200
Cash and stock to be paid in next period		$ 1,100		$ 1,100		$ 1,100
Total equity value transferred						82,500
Consideration payable in cash or equity		$ 6,600		$ 6,600		$ 6,600