Revenue (Tables)

3 Months Ended

Jan. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table shows the percentage of revenue by product groups:

	Three Months Ended   January 31,
	2021		2020
EDA	55.2	%	59.0	%
IP & System Integration	35.0	%	30.6	%
Software Integrity Products & Services	9.5	%	10.3	%
Other	0.3	%	0.1	%
Total	100.0	%	100.0	%

Schedule of Contract Assets and Liabilities

Contract balances are as follows:

	As of
	January 31, 2021		October 31, 2020
	(in thousands)
Contract assets	$	217,699	$	214,583
Unbilled receivables	$	49,459	$	50,932
Deferred revenue	$	1,653,039	$	1,493,113