Common Stock and Stockholders' Equity (Tables)

6 Months Ended

Sep. 30, 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 six months ended September 30, 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	297		98.75
RSUs granted								594		99.49
Stock options exercised	(455	)	19.83			35,899
RSUs vested								(448	)	38.45
Stock options canceled/forfeited	(20	)	40.67
RSUs canceled/forfeited								(133	)	46.63
Outstanding - September 30, 2018	3,037		$	30.54	6.5	$	195,295	2,092		$	59.10	2.7	$	197,101

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 September 30,				Six Months Ended September 30,
	2018		2017		2018		2017
Cost of revenue	$	895	$	603	$	1,588	$	1,129
Research and development	3,858		3,305		7,121		6,141
Sales and marketing	6,028		3,875		10,818		8,181
General and administrative	3,052		2,439		5,333		4,394
Total stock-based compensation expense	$	13,833	$	10,222	$	24,860	$	19,845