v3.25.1
Cover - shares
3 Months Ended
Mar. 28, 2025
Apr. 29, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 28, 2025  
Document Transition Report false  
Entity File Number 001-37961  
Entity Registrant Name ICHOR HOLDINGS, LTD.  
Entity Incorporation, State or Country Code E9  
Entity Address, Address Line One 3185 Laurelview Ct.  
Entity Address, City or Town Fremont  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94538  
City Area Code 510  
Local Phone Number 897-5200  
Title of 12(b) Security Ordinary Shares, par value $0.0001  
Trading Symbol ICHR  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Ordinary Shares Outstanding   34,119,879
Entity Central Index Key 0001652535  
Current Fiscal Year End Date --12-26  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Tax Identification Number 00-0000000