Stock-Based Compensation

6 Months Ended

Apr. 30, 2021

Share-based Payment Arrangement [Abstract]

The compensation cost recognized in the unaudited condensed consolidated statements of operations for the Company’s stock compensation arrangements was as follows:


	Three Months Ended April 30,				Six Months Ended April 30,
	2021		2020		2021		2020
	(in thousands)
Cost of products	$	9,304	$	6,116	$	18,656	$	11,696
Cost of maintenance and service	3,411		2,118		6,746		4,150
Research and development expense	40,507		28,893		81,801		55,102
Sales and marketing expense	14,551		9,726		29,710		18,620
General and administrative expense	11,813		9,582		26,455		18,750
Stock-based compensation expense before taxes	79,586		56,435		163,368		108,318
Income tax benefit	(12,407)		(9,808)		(25,469)		(18,826)
Stock-based compensation expense after taxes	$	67,179	$	46,627	$	137,899	$	89,492

As of April 30, 2021, the Company had $626.6 million of total unrecognized stock-based compensation expense relating to options and restricted stock units and awards, which is expected to be recognized over a weighted-average period of 2.4 years. As of April 30, 2021, the Company had $48.3 million of unrecognized stock-based compensation expense relating to its Employee Stock Purchase Plan (ESPP), which is expected to be recognized over a period of approximately 2.0 years.

The intrinsic values of equity awards exercised during the periods are as follows:


	Three Months Ended April 30,				Six Months Ended April 30,
	2021		2020		2021		2020
	(in thousands)
Intrinsic value of awards exercised	$	71,680	$	77,912	$	112,204	$	102,311