XML 113 R60.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Acquisitions - Intangible Assets Related to Acquisition (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 0 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2014 | Jun. 11, 2014 | Mar. 31, 2014 | Dec. 10, 2012 | Jul. 27, 2012 | Dec. 31, 2013 | Dec. 31, 2012
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Goodwill | 943,374 us-gaap_Goodwill |  |  |  |  | $ 773,048 us-gaap_Goodwill | $ 778,708 us-gaap_Goodwill
Developed Technologies [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Weighted average amortization period | 4 years 8 months 12 days |  |  |  |  |  |
Customer Relationships [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Weighted average amortization period | 19 years 7 months 6 days |  |  |  |  |  |
Trademarks [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Weighted average amortization period | 5 years |  |  |  |  |  |
Prosoft Technology, Inc. [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  | 40,800 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_ProsoftTechnologyMember |  |  |  |  |
Goodwill |  | 56,193 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = bdc_ProsoftTechnologyMember |  |  |  |  |
Intangible assets not subject to amortization |  | 56,193 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_ProsoftTechnologyMember |  |  |  |  |
Total intangible assets |  | 96,993 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_BusinessAcquisitionAxis = bdc_ProsoftTechnologyMember |  |  |  |  |
Weighted average amortization period |  | 14 years 9 months 18 days |  |  |  |  |
Prosoft Technology, Inc. [Member] | Developed Technologies [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  | 9,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_ProsoftTechnologyMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = bdc_DevelopedTechnologyMember |  |  |  |  |
Weighted average amortization period |  | 5 years |  |  |  |  |
Prosoft Technology, Inc. [Member] | Customer Relationships [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  | 26,600 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_ProsoftTechnologyMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |
Weighted average amortization period |  | 20 years |  |  |  |  |
Prosoft Technology, Inc. [Member] | Backlog [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  | 200 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_ProsoftTechnologyMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = bdc_BacklogMember |  |  |  |  |
Weighted average amortization period |  | 3 months 18 days |  |  |  |  |
Prosoft Technology, Inc. [Member] | Trademarks [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  | 5,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_ProsoftTechnologyMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  |  |  |  |
Weighted average amortization period |  | 5 years |  |  |  |  |
Grass Valley [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  | 65,500 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember |  |  |  |
Goodwill |  |  | 119,589 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember |  |  |  |
Intangible assets not subject to amortization |  |  | 149,589 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember |  |  |  |
Total intangible assets |  |  | 215,089 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember |  |  |  |
Weighted average amortization period |  |  | 9 years |  |  |  |
Grass Valley [Member] | In-Process/Service Research and Development [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets not subject to amortization |  |  | 8,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |  |  |  |
Grass Valley [Member] | Trademarks [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets not subject to amortization |  |  | 22,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  |  |  |
Grass Valley [Member] | Developed Technologies [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  | 37,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = bdc_DevelopedTechnologyMember |  |  |  |
Weighted average amortization period |  |  | 5 years |  |  |  |
Grass Valley [Member] | Customer Relationships [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  | 27,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |
Weighted average amortization period |  |  | 15 years |  |  |  |
Grass Valley [Member] | Backlog [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  | 1,500 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_GrassValleyMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = bdc_BacklogMember |  |  |  |
Weighted average amortization period |  |  | 3 months 18 days |  |  |  |
PPC Broadband, Inc. [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  | 132,500 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember |  |  |
Goodwill |  |  |  | 277,091 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember |  |  |
Intangible assets not subject to amortization |  |  |  | 309,091 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember |  |  |
Total intangible assets |  |  |  | 441,591 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember |  |  |
Weighted average amortization period |  |  |  | 11 years 2 months 12 days |  |  |
PPC Broadband, Inc. [Member] | In-Process/Service Research and Development [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets not subject to amortization |  |  |  | 5,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |  |  |
PPC Broadband, Inc. [Member] | Trademarks [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets not subject to amortization |  |  |  | 27,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  |  |
PPC Broadband, Inc. [Member] | Developed Technologies [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  | 76,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = bdc_DevelopedTechnologyMember |  |  |
Weighted average amortization period |  |  |  | 5 years |  |  |
PPC Broadband, Inc. [Member] | Customer Relationships [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  | 55,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |
Weighted average amortization period |  |  |  | 20 years |  |  |
PPC Broadband, Inc. [Member] | Backlog [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  | 1,500 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_PpcBroadbandIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = bdc_BacklogMember |  |  |
Weighted average amortization period |  |  |  | 6 months |  |  |
Miranda Technologies Inc. [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | 117,524 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember |  |
Goodwill |  |  |  |  | 161,206 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember |  |
Intangible assets not subject to amortization |  |  |  |  | 203,673 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember |  |
Total intangible assets |  |  |  |  | 321,197 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember |  |
Weighted average amortization period |  |  |  |  | 9 years 10 months 24 days |  |
Miranda Technologies Inc. [Member] | In-Process/Service Research and Development [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets not subject to amortization |  |  |  |  | 6,913 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |  |
Miranda Technologies Inc. [Member] | Trademarks [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets not subject to amortization |  |  |  |  | 35,554 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  |
Miranda Technologies Inc. [Member] | Developed Technologies [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | 69,132 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = bdc_DevelopedTechnologyMember |  |
Weighted average amortization period |  |  |  |  | 4 years |  |
Miranda Technologies Inc. [Member] | Customer Relationships [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | 44,442 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |
Weighted average amortization period |  |  |  |  | 20 years |  |
Miranda Technologies Inc. [Member] | Backlog [Member] |  |  |  |  |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | $ 3,950 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = bdc_MirandaTechnologiesIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = bdc_BacklogMember |  |
Weighted average amortization period |  |  |  |  | 1 year |  |

X
- Details
Name: | bdc_AcquiredFiniteAndIndefiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | bdc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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=26713463&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
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=39739317&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets
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 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 Reference 2: 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=35744172&loc=d3e2207-128464 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance. + References No definition available. + Details
Name: | us-gaap_IntangibleAssetsNetIncludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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