Number of countries the parent company markets and sells its products

No definition available.

Name:	ttmi_NumberOfCountriesParentCompanyMarketsAndSellsItsProducts
Namespace Prefix:	ttmi_
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of manufacturing facilities.

+ References

No definition available.

+ Details

Name:	ttmi_NumberOfManufacturingFacilities
Namespace Prefix:	ttmi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of net sales, if exceed, the company does not conduct business

+ References

No definition available.

+ Details

Name:	ttmi_PercentageOfNetSalesIfExceedCompanyDoesNotConductBusiness
Namespace Prefix:	ttmi_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460

+ Details

Name:	us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

+ Details

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ttmi_ElectronicManufacturingSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=ttmi_ShanghaiMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=ttmi_ShenzhenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ttmi_PrintedCircuitBoardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsegmentsAxis=ttmi_DomesticPrintedCircuitBoardRadioFrequencySubSystemAndRadioFrequencyFabricationPlantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsegmentsAxis=ttmi_PrintedCircuitBoardFabricationsPlantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_CN
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_CA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ttmi_RadioFrequencyAndSpecialtyComponentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsegmentsAxis=ttmi_DomesticRadioFrequencyComponentPlantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsegmentsAxis=ttmi_RadioFrequencyComponentPlantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Segment Information - Additional Information (Detail) $ in Thousands		12 Months Ended
	Apr. 29, 2020 Facility	Jan. 03, 2022 USD ($) Segment Country	Dec. 28, 2020 USD ($) Segment	Dec. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments		2
Number of countries the parent company markets and sells its products \| Country		52
Percentage of total net sales, if exceed, the company does not conduct business		10.00%
Corporate
Segment Reporting Information [Line Items]
Business combination, acquisition and divestitures related costs \| $		$ 1,002	$ 273	$ 6,902
E-M Solutions
Segment Reporting Information [Line Items]
Number of manufacturing facilities \| Facility	3
E-M Solutions \| Shanghai
Segment Reporting Information [Line Items]
Number of manufacturing facilities \| Facility	2
E-M Solutions \| Shenzhen
Segment Reporting Information [Line Items]
Number of manufacturing facilities \| Facility	1
Printed Circuit Board \| Domestic PCB, RF Sub-System, and RF Component Fabrication Plants
Segment Reporting Information [Line Items]
Number of operating segments			15
Printed Circuit Board \| PCB Fabrication Plants \| CHINA
Segment Reporting Information [Line Items]
Number of operating segments			6
Printed Circuit Board \| PCB Fabrication Plants \| Canada
Segment Reporting Information [Line Items]
Number of operating segments			1
RF&S Components \| Domestic RF Component Plants
Segment Reporting Information [Line Items]
Number of reportable segments			1
RF&S Components \| RF Component Plant \| CHINA
Segment Reporting Information [Line Items]
Number of reportable segments			1