v3.25.2

Share-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2025	Jun. 28, 2024	Jun. 27, 2025	Jun. 28, 2024	May 14, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense for options, RSUs and employee share purchase rights across all plans	$ 4.2	$ 3.9	$ 8.4	$ 6.3
The 2025 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement number of shares authorized (in shares)					2,963,471
The 2016 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, expiration period			4 years
Awards vesting percentage			25.00%
Awards vesting period			3 years
2017 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Purchase price equal to percentage of fair market value of ordinary shares			85.00%
2017 Employee Stock Purchase Plan \| Ordinary Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Ordinary shares remain available for purchase			2,100,000

Common stock shares available for purchase under employee stock purchase plans.

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ICHOR HOLDINGS, LTD. 10-Q