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Maturities of Operating Lease Liabilities (Parenthetical) (Detail)	Dec. 28, 2020 USD ($)
Leases [Abstract]
Legally binding lease payments for leases signed but not yet commenced	$ 955,000

X

- Definition

Lessee, operating lease, lease not yet commenced, liability incurred.

+ References

No definition available.

+ Details

Name:	ttmi_LesseeOperatingLeaseLeaseNotYetCommencedLiabilityIncurred
Namespace Prefix:	ttmi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

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