Inventories (Details Textual) - USD ($) $ in Millions	12 Months Ended
Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Inventories (Textual) [Abstract]
Inventories at cost as per LIFO	$ 68.4	$ 96.6
Inventories at average cost or FIFO methods	268.4	240.2
LIFO income (expense)	0.7	1.2	$ 0.1
Reserves for excess, slow moving and obsolete inventory	59.4	58.8
Inventories related to long-term contracts, before progress payments	87.2	73.8
Progress payments related to long-term contracts	$ 9.1	$ 12.3

Inventories at average cost or FIFO methods.

No definition available.

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- Definition

Inventories.

+ References

No definition available.

+ Details

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- Definition

Progress Payments Netted Against Inventory for Long-term Contracts or Programs, Noncurrent

+ References

No definition available.

+ Details

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- Definition

Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66092785&loc=d3e4492-108314

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount before valuation and LIFO reserves, and progress payments, of inventory associated with long-term contracts, expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a),(d))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The difference between the change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods and any LIFO decrement which have been reflected in the statement of income during the period.

+ References

No definition available.

+ Details

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- Definition

The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766

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