Revenue (Tables)

3 Months Ended

Jan. 31, 2020

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,
	2020		2019
EDA	59	%	61	%
IP & System Integration	31	%	29	%
Software Integrity Products & Services	10	%	10	%
Total	100	%	100	%

Schedule of Contract Assets and Liabilities

Contract balances are as follows:

	As of
	January 31, 2020	October 31, 2019
	(in thousands)
Contract assets	205,635	210,557
Unbilled receivables	38,943	38,175
Deferred revenue	1,501,441	1,302,578