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Subsequent events	3 Months Ended
Subsequent events	Apr. 03, 2016
Subsequent Events [Abstract]
Subsequent events	Subsequent events In the second quarter of 2016, Teledyne completed the acquisitions of two test and measurement instrumentation companies and one imaging software company for initial aggregate cash consideration of $60.0 million. Also in the second quarter of 2016, Teledyne entered into an agreement to sell assets of Teledyne’s printed circuit technology business for $9.3 million in cash. The completion of the transaction, which is subject to certain conditions and approvals, is anticipated to occur in the second quarter of 2016.