Common Stock and Stockholders' Equity (Tables)

6 Months Ended

Sep. 30, 2017

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, 2017 (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, 2017	4,607		$	17.49	7.1	$	90,339	1,978		$	29.32	2.8	$	73,309
Stock options granted	449		44.69
RSUs granted								871		44.50
Stock options exercised	(1,232	)	13.99			36,669
RSUs vested								(387	)	30.19
Stock options canceled/forfeited	(230	)	26.01
RSUs canceled/forfeited								(282	)	30.95
Outstanding - September 30, 2017	3,594		$	21.54	7.0	$	101,558	2,180		$	35.01	2.8	$	108,585

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

ost 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,
	2017		2016		2017		2016
Cost of revenue	$	603	$	513	$	1,129	$	894
Research and development	3,305		2,522		6,141		5,063
Sales and marketing	3,875		3,409		8,181		6,171
General and administrative	2,439		1,819		4,394		3,473
Total stock-based compensation expense	$	10,222	$	8,263	$	19,845	$	15,601