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.

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

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- Details

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- Details

Name:	us-gaap_BusinessAcquisitionAxis=tdy_ETMElectromaticIncMember
Namespace Prefix:
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- Details

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Business Acquisitions - Additional information (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Apr. 02, 2023	Jan. 01, 2023	Apr. 03, 2022	Jan. 01, 2023	Oct. 02, 2022
Business Acquisition [Line Items]
Consideration transferred, net of cash acquired	$ 52.5		$ 0.0
ChartWorld
Business Acquisition [Line Items]
Consideration transferred, net of cash acquired	$ 52.5
ETM
Business Acquisition [Line Items]
Consideration transferred, net of cash acquired		$ 87.7		$ 87.7
NL Acoustics
Business Acquisition [Line Items]
Consideration transferred, net of cash acquired				$ 11.9
Interest acquired		80.00%		80.00%	80.00%