Veloce - Cash Payments and Stock Issuances (Details) - Veloce Technologies Inc - USD ($) shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		52 Months Ended
	Jun. 30, 2012	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016
Business Acquisition [Line Items]
Cash payments		$ 3,660	$ 25	$ 3,668	$ 90	$ 93,100
Total equity value transferred		0	1,947	0	2,868	82,400
Total payments	$ 178,500	$ 3,660	$ 1,972	$ 3,668	$ 2,958	$ 175,500
Shares of common stock issued (in shares)		0	354	0	517	11,200