Common Stock and Stockholders' Equity (Tables)

9 Months Ended

Dec. 31, 2016

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, 2016 (in thousands, except per share information):

	Options Outstanding							RSUs Outstanding
	Number of Shares		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value		Number of Shares		Weighted- Average Grant Date Fair Value		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding - April 1, 2016	7,050		$	13.20	6.5	$	95,326	1,549		$	29.73	3.1	$	40,387
Stock options granted	327		27.64
RSUs granted								1,252		28.13
Stock options exercised	(2,141	)	5.73			57,782
RSUs vested								(439	)	29.56
Stock options canceled/forfeited	(305	)	19.61
RSUs canceled/forfeited								(282	)	28.99
Outstanding - December 31, 2016	4,931		$	17.01	7.2	$	58,792	2,080		$	28.90	3.0	$	58,762

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,
	2016		2015		2016		2015
Cost of revenue	$	475	$	333	$	1,369	$	893
Research and development	2,390		1,684		7,453		4,223
Sales and marketing	3,479		2,588		9,650		6,634
General and administrative	1,774		1,751		5,247		4,853
Total stock-based compensation expense	$	8,118	$	6,356	$	23,719	$	16,603