Disposal Group, Including Discontinued Operations, Net Income (Loss) Before Taxes

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- Definition

Number of Product Lines

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

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- Definition

Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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-Paragraph 5B
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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

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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

No definition available.

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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/presentationRef
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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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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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Business Segments (Narrative) (Details)	3 Months Ended								12 Months Ended
Business Segments (Narrative) (Details)	Jan. 01, 2017 USD ($) product_line	Oct. 02, 2016 USD ($)	Jul. 03, 2016 USD ($)	Apr. 03, 2016 USD ($)	Jan. 03, 2016 USD ($)	Sep. 27, 2015 USD ($)	Jun. 28, 2015 USD ($)	Mar. 29, 2015 USD ($)	Jan. 01, 2017 USD ($) segment product_line	Jan. 03, 2016 USD ($)	Dec. 28, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment									4
Amount remaining to be paid for severance and facility consolidations	$ 3,700,000								$ 3,700,000
Sales	$ 552,900,000	$ 526,800,000	$ 539,700,000	$ 530,500,000	$ 600,000,000	$ 555,400,000	$ 577,700,000	$ 565,000,000	$ 2,149,900,000	$ 2,298,100,000	$ 2,394,000,000
Sales to individual countries outside the United States									0.00%
Sales between business segments									$ 20,200,000	19,400,000	20,100,000
United States Department of Defense
Segment Reporting Information [Line Items]
Sales									449,400,000	447,200,000	472,800,000
Countries Other Than United States
Segment Reporting Information [Line Items]
Sales									919,400,000	1,020,400,000	1,069,300,000
Countries Other Than United States \| Domestic Operations
Segment Reporting Information [Line Items]
Sales									$ 539,400,000	628,200,000	624,000,000
Instrumentation
Segment Reporting Information [Line Items]
Number of product lines \| product_line	3								3
Sales									$ 876,700,000	1,051,100,000	1,115,500,000
Aerospace and Defense Electronics
Segment Reporting Information [Line Items]
Number of product lines \| product_line	1								1
Digital Imaging
Segment Reporting Information [Line Items]
Number of product lines \| product_line	1								1
Engineered Systems
Segment Reporting Information [Line Items]
Number of product lines \| product_line	1,000,000								1,000,000
PCT \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Segment Reporting Information [Line Items]
Consideration received		9,300,000
Gain on sale		$ 0
Sales									$ 10,100,000	16,600,000	18,800,000
Pretax loss									$ (3,100,000)	$ (3,900,000)	$ (1,100,000)