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Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 29, 2025
Dec. 30, 2024
Jan. 01, 2024
Dec. 28, 2015
Income Taxes [Line Items]        
Deferred tax liability, undistributed earnings of foreign subsidiaries   $ 0    
Unrecognized deferred tax liability related to undistributed earnings $ 2,687,000      
Deferred tax liability 43,768,000 40,419,000    
Tax credit carryforward, total 41,153,000      
Tax credit carryforwards not subject to expiration $ 4,883,000      
Incentive based special tax rate 0.00%      
U.S. federal statutory income tax, Rate 21.00%      
Additions for tax positions of prior years $ 977,000 0 $ 13,000  
Unrecognized tax expense including income tax penalties and interest accrued 1,261,000 446,000    
Unrecognized tax expense, income tax penalties and interest accrued 63,000 475,000    
Reduction in deferred tax assets 11,143,000 10,193,000    
Domestic state income taxes 37,437,000 $ 18,766,000 $ 53,751,000  
Research and Development Tax Credit Member        
Income Taxes [Line Items]        
Additions for tax positions of prior years 1,765,000      
TTM Viasystems Group Inc        
Income Taxes [Line Items]        
Net operating loss carryforwards       $ 68,667,000
Utilization of the U.S. net operating losses       $ 9,826,000
TTM Viasystems Group Inc | Minimum        
Income Taxes [Line Items]        
Percentage of change in ownership       50.00%
UNITED STATES        
Income Taxes [Line Items]        
Net operating loss carryforwards $ 68,667,000      
UNITED STATES | Earliest Tax Year        
Income Taxes [Line Items]        
Expiration year, operating loss carryforwards 2029      
UNITED STATES | Latest Tax Year        
Income Taxes [Line Items]        
Expiration year, operating loss carryforwards 2032      
Various U.S. States        
Income Taxes [Line Items]        
Net operating loss carryforwards $ 19,054,000      
Various U.S. States | Earliest Tax Year        
Income Taxes [Line Items]        
Expiration year, operating loss carryforwards 2026      
Various U.S. States | Latest Tax Year        
Income Taxes [Line Items]        
Expiration year, operating loss carryforwards 2045      
CHINA        
Income Taxes [Line Items]        
Net operating loss carryforwards $ 8,805,000      
CHINA | Earliest Tax Year        
Income Taxes [Line Items]        
Expiration year, operating loss carryforwards 2031      
CHINA | Latest Tax Year        
Income Taxes [Line Items]        
Expiration year, operating loss carryforwards 2035      
HONG KONG        
Income Taxes [Line Items]        
Net operating loss carryforwards $ 22,796,000      
MALAYSIA        
Income Taxes [Line Items]        
Net operating loss carryforwards $ 33,156,000      
Tax rate 24.00%      
Foreign        
Income Taxes [Line Items]        
Deferred tax liability, undistributed earnings of foreign subsidiaries $ 4,682,000      
Undistributed earnings of foreign subsidiaries $ 60,769,000      
Tax year remain subject to examination 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025      
State and Local        
Income Taxes [Line Items]        
Deferred tax liability, undistributed earnings of foreign subsidiaries $ 1,514,000      
Tax year remain subject to examination 2020 2021 2022 2023 2024 2025      
State and Local | Maryland        
Income Taxes [Line Items]        
Domestic state income taxes $ 1,332,000      
State and Local | Massachusetts        
Income Taxes [Line Items]        
Domestic state income taxes $ 497,000      
U.S. Federal        
Income Taxes [Line Items]        
Tax year remain subject to examination 2022 2023 2024 2025