Restructuring and Other Charges (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Cadence's Restructuring Plans
Beginning Balance	$ 12,024	$ 13,784	$ 24,460
Restructuring and other charges (credits), net	8,621	11,089	9,406
Cash payments	(11,134)	(12,880)	(20,356)
Effect of foreign currency translation	127	31	274
Ending Balance	9,638	12,024	13,784
Severance and Benefits [Member]
Cadence's Restructuring Plans
Beginning Balance	11,176	13,535	24,402
Restructuring and other charges (credits), net	8,649	10,268	9,027
Cash payments	(10,714)	(12,688)	(20,170)
Effect of foreign currency translation	118	61	276
Ending Balance	9,229	11,176	13,535
Excess Facilities [Member]
Cadence's Restructuring Plans
Beginning Balance	848	249	58
Restructuring and other charges (credits), net	(28)	821	379
Cash payments	(420)	(192)	(186)
Effect of foreign currency translation	9	(30)	(2)
Ending Balance	$ 409	$ 848	$ 249

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

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