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Segments and Geographic Information - Revenue by Market (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Revenue from External Customers [Line Items]
Revenues	$ 769,674	$ 693,616	$ 589,464
Foundry & Logic
Revenue from External Customers [Line Items]
Revenues	435,812	446,183	318,552
DRAM
Revenue from External Customers [Line Items]
Revenues	156,049	109,734	147,257
Flash
Revenue from External Customers [Line Items]
Revenues	41,420	25,822	25,554
Systems
Revenue from External Customers [Line Items]
Revenues	$ 136,393	$ 111,877	$ 98,101

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