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Revenues - Schedule of Estimated and Accrued Variable Consideration (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Mar. 29, 2026 | Dec. 31, 2025
Revenue from Contract with Customer [Abstract] |  |
Accrued rebates included in accrued liabilities | $ 67,943 | $ 76,789
Accrued returns included in accrued liabilities | 12,828 | 11,892
Price adjustments recognized against gross accounts receivable | $ 31,908 | $ 33,258

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- Definition Accrued sales rebates. + References No definition available. + Details
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Period Type: | instant

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- Definition Accrued Sales Returns + References No definition available. + Details
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Namespace Prefix: | bdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in estimate of transaction price which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Includes, but is not limited to, change in assessment of whether estimate of variable consideration is constrained. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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