Common Stock and Stockholders' Equity (Tables)

6 Months Ended

Sep. 30, 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 six months ended September 30, 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	300		27.11
RSUs granted								1,095		27.41
Stock options exercised	(1,605	)	6.16			42,609
RSUs vested								(283	)	29.23
Stock options canceled/forfeited	(254	)	19.32
RSUs canceled/forfeited								(202	)	29.15
Outstanding - September 30, 2016	5,491		$	15.74	7.0	$	124,016	2,159		$	28.67	3.1	$	82,717

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 September 30,				Six Months Ended September 30,
	2016		2015		2016		2015
Cost of revenue	$	513	$	309	$	894	$	560
Research and development	2,522		1,501		5,063		2,539
Sales and marketing	3,409		2,070		6,171		4,046
General and administrative	1,819		1,708		3,473		3,102
Total stock-based compensation expense	$	8,263	$	5,588	$	15,601	$	10,247