Veloce - Additional Information (Details) (Veloce Technologies Inc., USD $) Share data in Millions, unless otherwise specified	3 Months Ended					9 Months Ended		12 Months Ended		21 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Jun. 20, 2012
Veloce Technologies Inc.
Variable Interest Entity [Line Items]
Total consideration to be transferred				$ 178,500,000		$ 178,500,000			$ 178,500,000		$ 135,000,000
Research and development expenses incurred	2,900,000	30,400,000	9,300,000	9,600,000	60,400,000	126,600,000	51,900,000	42,700,000	66,200,000	169,300,000
Payment of aggregate consideration as cash								63,700,000	16,500,000
Aggregate shares issued (shares)								6.7	3.0
Value of aggregate shares issued								57,300,000	16,600,000
Unallocated stock units distributed (shares)								0.5
UNallocated stock units distributed expense								5,900,000
Unallocated stock units (shares)								0.9		0.9
Unallocated stock units value								$ 9,200,000		$ 9,200,000