v3.26.1
Cover - shares
6 Months Ended
Jun. 26, 2026
Jul. 28, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 26, 2026  
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   37,454,229
Entity Central Index Key 0001652535  
Current Fiscal Year End Date --12-25  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Tax Identification Number 00-0000000