Revenue Revenue (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Revenue from External Customers by Products and Services

The following table shows the percentage of product and related maintenance revenue contributed by each of Cadence’s five product groups and services for the three months ended March 31, 2018:

	Three Months Ended
	March 31, 2018		April 1, 2017
Functional Verification, including Emulation and Prototyping Hardware	26	%	23	%
Digital IC Design and Signoff	30	%	29	%
Custom IC Design	26	%	26	%
System Interconnect and Analysis	9	%	10	%
IP	9	%	12	%
Total	100	%	100	%

Contract Balances

Cadence’s contract balances as of March 31, 2018 were as follows:

	As of
	March 31, 2018		December 30, 2017
			As Adjusted
	(In thousands)
Contract assets	$	6,077	$	3,964
Deferred revenue	366,915		336,060