Common Stock and Stockholders' Equity (Tables)

9 Months Ended

Dec. 31, 2018

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, 2018 (in thousands, except exercise price, contractual term and fair value 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, 2018	3,215		$	22.79	6.7	$	165,041	2,079		$	42.31	2.7	$	154,071
Stock options granted	307		98.32
RSUs granted								748		96.28
Stock options exercised	(552	)	20.89			41,555
RSUs vested								(688	)	41.38
Stock options canceled/forfeited	(96	)	52.74
RSUs canceled/forfeited								(248	)	50.84
Outstanding - December 31, 2018	2,874		$	30.22	6.1	$	150,780	1,891		$	62.88	2.7	$	153,149

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

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,
	2018		2017		2018		2017
Cost of revenue	$	934	$	587	$	2,522	$	1,716
Research and development	4,322		2,959		11,443		9,100
Sales and marketing	6,222		3,933		17,040		12,114
General and administrative	3,286		2,454		8,619		6,848
Total stock-based compensation expense	$	14,764	$	9,933	$	39,624	$	29,778