Common Stock and Stockholders' Equity (Tables)

9 Months Ended

Dec. 31, 2015

Equity [Abstract]

Schedule of Stock Option and RSU Award Activities

The following table summarizes the Company’s stock option and RSU award activities for the nine months ended December 31, 2015 (in thousands, except per share information):

	Options Outstanding									RSUs Outstanding
						Weighted- Average Remaining Contractual Term (in years)							Weighted- Average Grant Date Fair Value		Weighted- Average Remaining Contractual Term (in years)
	Number of Shares			Weighted- Average Exercise Price				Aggregate Intrinsic Value		Number of Shares							Aggregate Intrinsic Value
Outstanding - April 1, 2015		9,422		$	10.08		7.9	$	231,964		723		$	23.87		3.5	$	25,098
Stock options granted		621			32.92
RSUs granted											1,008			33.48
Stock options exercised		(1,921	)		5.49				56,534
RSUs vested											(123	)		25.07
Stock options canceled/forfeited		(545	)		15.77
RSUs canceled/forfeited											(107	)		26.97
Outstanding - December 31, 2015		7,577		$	12.71		6.7	$	179,964		1,501		$	30.01		3.3	$	54,682

Schedule of Stock-based Compensation Expense Attributed to Cost of Revenue, Research and Development, Sales and Marketing and General and Administrative Expenses

Stock-based compensation expense attributed to cost of revenue, research and development, sales and marketing, and general and administrative expenses were as follows (in thousands):

	Three Months Ended December 31,				Nine Months Ended December 31,
	2015		2014		2015		2014
Cost of revenue	$	333	$	166	$	893	$	359
Research and development		1,684		721		4,223		1,178
Sales and marketing		2,588		1,474		6,634		3,378
General and administrative		1,751		1,065		4,853		2,677
Total stock-based compensation expense	$	6,356	$	3,426	$	16,603	$	7,592