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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- 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.

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- 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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References

No definition available.

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Segment Information - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
Segment Information - Narrative (Details) $ in Millions	Oct. 03, 2021 USD ($) product_line	Sep. 27, 2020 USD ($)	Oct. 03, 2021 USD ($) segment product_line	Sep. 27, 2020 USD ($)
Segment Reporting [Abstract]
Number of reportable segments \| segment			4
Instrumentation
Revenue from External Customer [Line Items]
Number of product lines	3		3
Digital Imaging
Revenue from External Customer [Line Items]
Number of product lines	1		1
Aerospace and Defense Electronics
Revenue from External Customer [Line Items]
Number of product lines	1		1
Engineered Systems
Revenue from External Customer [Line Items]
Number of product lines	1		1
Engineered Systems \| Fixed-price contracts \| Segment \| Fixed-price contracts
Revenue from External Customer [Line Items]
Net sales fixed price contracts percent			47.00%
Engineered Systems \| Fixed-price contracts \| Segment \| Fixed-price contracts \| Minimum
Revenue from External Customer [Line Items]
Net sales fixed price contracts percent			45.00%
Engineered Systems \| Fixed-price contracts \| Segment \| Fixed-price contracts \| Maximum
Revenue from External Customer [Line Items]
Net sales fixed price contracts percent			55.00%
FLIR
Revenue from External Customer [Line Items]
Restructuring charges \| $	$ 0.5		$ 23.7
Employee Severance And Facility Consolidation
Revenue from External Customer [Line Items]
Restructuring charges \| $	1.3	$ 3.3	26.4	$ 15.1
Restructuring liability \| $	$ 1.0		$ 1.0