XML 70 R60.htm IDEA: XBRL DOCUMENT
v3.22.1

Leases - Additional Information (Details) $ in Millions | 3 Months Ended
--- | ---
Apr. 03, 2022 USD ($)
Lessee, Lease, Description [Line Items] |
Renewal term | 15 years
Snell Advanced Media (SAM) |
Lessee, Lease, Description [Line Items] |
Lease guarantee, remaining lease payments | $ 19.2
Minimum |
Lessee, Lease, Description [Line Items] |
Operating and finance lease, term of contract | 1 year
Maximum |
Lessee, Lease, Description [Line Items] |
Operating and finance lease, term of contract | 17 years

X
- Definition Lessee, Operating and Finance Lease, Renewal Term + References No definition available. + Details
Name: | bdc_LesseeOperatingandFinanceLeaseRenewalTerm
Namespace Prefix: | bdc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee, Operating and Finance Lease, Term of Contract + References No definition available. + Details
Name: | bdc_LesseeOperatingandFinanceLeaseTermofContract
Namespace Prefix: | bdc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of residual asset covered by residual value guarantee under operating lease. Excludes guarantee considered to be lease payments for lessor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=124258985&loc=SL77919359-209981 + Details
Name: | us-gaap_OperatingLeaseResidualValueOfLeasedAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=bdc_SnellAdvancedMediaSAMMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |