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EQUITY AWARD PLANS (Tables)

3 Months Ended

Oct. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of RSUs Activity

Below is a summary of RSU activity, including MSUs, under the Stock Plans:

			Number of Shares						Grant Date Fair Value per Share
			(in thousands)
Outstanding at July 31, 2020			22,632						$	32.70
Granted			3,454						$	24.02
Released			(2,819)						$	31.23
Forfeited			(806)						$	34.00
Outstanding at October 31, 2020			22,461						$	31.50

Schedule of ESPP Valuation Assumptions

We use the Black-Scholes option pricing model to determine the fair value of shares purchased under the 2016 ESPP with the following weighted average assumptions on the date of grant:

			Three Months Ended October 31,
			2019						2020
Expected term (in years)			0.92						0.92
Risk-free interest rate			1.9		%				0.1		%
Volatility			68.7		%				73.3		%
Dividend yield			—		%				—		%

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

Total stock-based compensation expense recognized in the condensed consolidated statements of operations is as follows:

			Three Months Ended October 31,
			2019						2020
			(in thousands)
Cost of revenue:
Product			$	1,112					$	1,504
Support, entitlements and other services			4,751						5,761
Sales and marketing			27,775						32,227
Research and development			37,563						37,887
General and administrative			10,225						11,819
Total stock-based compensation expense			$	81,426					$	89,198

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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