Revenue (Tables)

3 Months Ended

Mar. 28, 2020

Revenue from Contract with Customer [Abstract]

Revenue from external customers by product group

for the three months ended March 28, 2020 and March 30, 2019:

	Three Months Ended
	March 28, 2020		March 30, 2019
Custom IC Design and Simulation	25	%	25	%
Digital IC Design and Signoff	29	%	30	%
Functional Verification, including Emulation and Prototyping Hardware*	23	%	24	%
IP	14	%	12	%
System Interconnect and Analysis	9	%	9	%
Total	100	%	100	%

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^* Includes immaterial amount of revenue accounted for under leasing arrangements.

Contract balances

Cadence’s contract balances as of March 28, 2020 and December 28, 2019 were as follows:

	As of
	March 28, 2020		December 28, 2019
	(In thousands)
Contract assets	$	15,985	$	10,209
Deferred revenue	521,119		428,883