XML 52 R40.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Acquisitions - Schedule of Acquired Intangible Assets (Details) - USD ($) $ in Thousands | Feb. 08, 2018 | May 31, 2017
--- | --- | ---
Snell Advanced Media |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization | $ 54,100 |
Total intangible assets not subject to amortization | 87,853 |
Total intangible assets | $ 141,953 |
Amortization Period | 6 years 3 months 20 days |
Snell Advanced Media | Goodwill |  |
Business Acquisition [Line Items] |  |
Total intangible assets not subject to amortization | $ 87,853 |
Snell Advanced Media | Developed technologies |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization | $ 38,100 |
Amortization Period | 5 years |
Snell Advanced Media | Customer relationships |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization | $ 12,300 |
Amortization Period | 12 years |
Snell Advanced Media | Sales backlog |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization | $ 2,000 |
Amortization Period | 3 months 18 days |
Snell Advanced Media | Trademarks |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization | $ 1,700 |
Amortization Period | 11 months |
Thinklogical Holdings LLC |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization |  | $ 73,400
Total intangible assets not subject to amortization |  | 70,654
Total intangible assets |  | $ 144,054
Amortization Period |  | 9 years 7 months 6 days
Thinklogical Holdings LLC | Goodwill |  |
Business Acquisition [Line Items] |  |
Total intangible assets not subject to amortization |  | $ 70,654
Thinklogical Holdings LLC | Developed technologies |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization |  | $ 62,600
Amortization Period |  | 10 years
Thinklogical Holdings LLC | Customer relationships |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization |  | $ 6,500
Amortization Period |  | 8 years
Thinklogical Holdings LLC | Sales backlog |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization |  | $ 1,400
Amortization Period |  | 3 months 19 days
Thinklogical Holdings LLC | Trademarks |  |
Business Acquisition [Line Items] |  |
Total intangible assets subject to amortization |  | $ 2,900
Amortization Period |  | 10 years

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
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_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=bdc_SnellAdvancedMediaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_GoodwillMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DevelopedTechnologyRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OrderOrProductionBacklogMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=bdc_ThinklogicalHoldingsLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |