Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 28, 2020	Jan. 03, 2022	Dec. 28, 2020	Dec. 30, 2019	Dec. 28, 2015
Income Taxes [Line Items]
Deferred tax liability, undistributed earnings of foreign subsidiaries		$ 0
Unrecognized deferred tax liability related to undistributed earnings		2,642,000
Tax credit carryforward, total		48,150,000
Tax credit carryforwards not subject to expiration		5,777,000
Reduced prior years’ uncertain tax positions	$ 2,038,000	357,000	$ 27,283,000	$ 103,000
Unrecognized tax benefits including income tax penalties and interest accrued	1,046,000	804,000	1,046,000
Unrecognized tax benefits, income tax penalties and interest accrued	$ 1,566,000	1,026,000	1,566,000
Reduction in deferred tax assets		8,638,000	$ 6,358,000
Unrecognized tax benefits that would impact effective tax rate		1,830,000
TTM Viasystems Group Inc
Income Taxes [Line Items]
Net operating loss carryforwards					$ 107,969,000
Utilization of the U.S. net operating losses					9,826,000
Increase in utilization of the U.S. net operating losses					$ 47,463,000
Net operating loss utilization period					5 years
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		$ 107,969,000
UNITED STATES | Earliest Tax Year
Income Taxes [Line Items]
Expiration year, operating loss carryforwards		2028
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		$ 28,427,000
Various U.S. States | Earliest Tax Year
Income Taxes [Line Items]
Expiration year, operating loss carryforwards		2022
Various U.S. States | Latest Tax Year
Income Taxes [Line Items]
Expiration year, operating loss carryforwards		2037
CHINA
Income Taxes [Line Items]
Net operating loss carryforwards		$ 62,909,000
CHINA | Earliest Tax Year
Income Taxes [Line Items]
Expiration year, operating loss carryforwards		2025
CHINA | Latest Tax Year
Income Taxes [Line Items]
Expiration year, operating loss carryforwards		2031
HONG KONG
Income Taxes [Line Items]
Net operating loss carryforwards		$ 18,034,000
Foreign
Income Taxes [Line Items]
Deferred tax liability, undistributed earnings of foreign subsidiaries		2,816,000
Undistributed earnings of foreign subsidiaries		$ 60,769,000
Foreign | Earliest Tax Year
Income Taxes [Line Items]
Tax year remain subject to examination		2011
Foreign | Latest Tax Year
Income Taxes [Line Items]
Tax year remain subject to examination		2021
State and Local
Income Taxes [Line Items]
Deferred tax liability, undistributed earnings of foreign subsidiaries		$ 1,666,000
NOL and credit carryforward post utilization adjustment term		4 years
State and Local | Earliest Tax Year
Income Taxes [Line Items]
Tax year remain subject to examination		2018
State and Local | Latest Tax Year
Income Taxes [Line Items]
Tax year remain subject to examination		2021
U.S. Federal
Income Taxes [Line Items]
NOL and credit carryforward post utilization adjustment term		3 years
U.S. Federal | Earliest Tax Year
Income Taxes [Line Items]
Tax year remain subject to examination		2019
U.S. Federal | Latest Tax Year
Income Taxes [Line Items]
Tax year remain subject to examination		2021