Veloce - Cash Payments and Stock Issuances (Details) - Veloce Technologies Inc - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended		43 Months Ended
	Jun. 20, 2012	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015
Business Acquisition [Line Items]
Cash payments		$ 9	$ 1,482	$ 99	$ 8,981	$ 89,400
Value of common stock issued		1	257	2,869	872
Total payments	$ 178,500	$ 10	$ 1,739	$ 2,968	$ 9,853	$ 171,900
Shares of common stock issued (in shares)		0	39	517	116	11,200