Lease Commitments	3 Months Ended
Apr. 04, 2021
Leases [Abstract]
Lease Commitments	Lease CommitmentsAt April 4, 2021, Teledyne has right-of-use assets of $119.4 million and a total lease liability for operating leases of $133.3 million of which $111.9 million is included in long-term lease liabilities and $21.4 million is included in current accrued liabilities. Operating lease expense was $6.4 million for the first quarter of 2021. Operating lease expense was $6.1 million for the first quarter of 2020.

The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=77888251

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