Acquired Finite And Indefinite Lived Intangible Assets [Line Items]

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- Definition

Customer relationship contractual term maximum.

+ References

No definition available.

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- Definition

Customer relationship contractual term minimum.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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- Definition

Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition.

+ References

No definition available.

+ Details

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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Oct. 31, 2016
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	$ 895.5	$ 790.1	$ 810.7
Weighted-average amortization period (in years)	11 years
Aggregate amortization expense	$ 24.2	24.7	24.7
Estimated annual amortization expense for fiscal period 2017	23.2
Estimated annual amortization expense for fiscal period 2018	20.8
Estimated annual amortization expense for fiscal period 2019	17.5
Estimated annual amortization expense for fiscal period 2020	13.9
Estimated annual amortization expense for fiscal period 2021	12.2
Repair Systems & Information Group [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	640.6	524.5	522.3
Commercial & Industrial Group [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	242.4	$ 253.1	$ 275.9
Car O Liner Holding AB And Ryeson Corporation [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	131.3
Car-O-Liner Holding AB [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	128.1			$ 128.1
Car-O-Liner Holding AB [Member] \| Repair Systems & Information Group [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	125.6
Car-O-Liner Holding AB [Member] \| Commercial & Industrial Group [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	2.5
Ryeson Corporation [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	3.2
Ryeson Corporation [Member] \| Commercial & Industrial Group [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Goodwill	$ 3.2
Customer relationships [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted-average amortization period (in years)	15 years
Customer relationship contractual term, minimum (in years)	3 years
Customer relationship contractual term, maximum (in years)	5 years
Trademarks [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted-average amortization period (in years)	6 years
Trademarks [Member] \| Ryeson Corporation [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Non-amortized trademark	$ 3.7