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Income per Share - Additional Information (Details) - shares shares in Millions | 3 Months Ended
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Mar. 29, 2026 | Mar. 30, 2025
Earnings Per Share [Abstract] |  |
Outstanding equity awards not included in diluted weighted average shares outstanding (in shares) | 0.1 | 0.1
Outstanding equity awards not included in diluted weighted average shares outstanding due to performance conditions not being met (in shares) | 0.2 | 0.3

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- Definition Antidilutive Securities Excluded From Computation Of Earnings Per Share Due To Performance Conditions Not Met, Amount + References No definition available. + Details
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Namespace Prefix: | bdc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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