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Derivative Instruments and Hedging Activities - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 28, 2019 | Dec. 29, 2018
Derivative [Line Items] |  |
Restricted cash in other current assets as collateral related to open derivative contracts | $ 0.2 | $ 3.6
Commodity Contract [Member] |  |
Derivative [Line Items] |  |
Deferred net gains (losses), net of tax, included in AOCI | 0.3 |
Cash Flow Hedging [Member] | Commodity Contract [Member] | Long [Member] |  |
Derivative [Line Items] |  |
Open future contracts to purchase copper | $ 21.3 |
Time period for open copper future contract | 12 months |
Fair value of future contracts with gain (loss) position | $ 1.4 |
Fair Value Hedging [Member] | Commodity Contract [Member] | Short [Member] |  |
Derivative [Line Items] |  |
Fair value of future contracts with gain (loss) position | (0.1) |
Open future contracts to sell copper | $ 1.9 |
Time period for open copper future contract sales | 5 months |

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- Definition Accumulated change, net of tax, in accumulated gains and losses from derivative instruments. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. + References No definition available. + Details
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- Definition Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226016-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=d3e41678-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition The fair value of the open option contracts written for the investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B.4,Column E) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611197-123010 + Details
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