Revenue (Tables)

12 Months Ended

Oct. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

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

	2021		2020		2019
EDA	55.5	%	57.4	%	58.4	%
IP & System Integration	34.8	%	32.6	%	31.4	%
Software Integrity Products & Services	9.4	%	9.7	%	10.0	%
Other	0.3	%	0.3	%	0.2	%
Total	100.0	%	100.0	%	100.0	%

Contract with Customer, Asset and Liability

Contract balances are as follows:

	As of October 31,
	2021		2020
	(in thousands)
Contract assets, net	$	284,574	$	214,583
Unbilled receivables	$	35,589	$	50,932
Deferred revenue	$	1,653,926	$	1,493,113