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Acquisitions - Additional Information (Detail) - USD ($) $ in Millions |  |  |  |  | 6 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jan. 31, 2018 | Jul. 28, 2017 | May 04, 2017 | Jan. 30, 2017 | Jun. 30, 2018 | Jul. 01, 2017 | Dec. 30, 2017
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  | $ 911.0 |  | $ 924.1
Cash purchase price of acquisition, net of cash acquired |  |  |  |  | 3.0 | $ 80.2 |
George A. Sturdevant, Inc. (d/b/a Fastorq) |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash purchase price of acquisition | $ 3.0 |  |  |  |  |  |
Goodwill |  |  |  |  | 2.6 |  |
Torque Control Specialist |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash purchase price of acquisition |  | $ 3.6 |  |  |  |  |
Goodwill |  |  |  |  | 2.0 |  |
Cash purchase price of acquisition, net of cash acquired |  | $ 3.5 |  |  |  |  |
Norbar |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash purchase price of acquisition |  |  | $ 71.6 |  |  |  |
Goodwill |  |  |  |  | 25.1 |  |
Cash purchase price of acquisition, net of cash acquired |  |  | $ 69.9 |  |  |  |
BTC |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  | $ 5.9 |  |
Cash purchase price of acquisition, net of cash acquired |  |  |  | $ 9.2 |  |  |

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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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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