XML 92 R75.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | $ 1,385,115 | $ 943,374
Acquisitions and purchase accounting adjustments | 8,492 | 476,040
Translation impact | (2,135) | (34,299)
Reclassify to assets held for sale | (5,477) |
Goodwill, Ending Balance | 1,385,995 | 1,385,115
Broadcast Solutions [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | 536,388 | 550,362
Acquisitions and purchase accounting adjustments | 8,492 | 11,481
Translation impact | (838) | (25,455)
Reclassify to assets held for sale | 0 |
Goodwill, Ending Balance | 544,042 | 536,388
Enterprise Solutions [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | 73,278 | 73,278
Acquisitions and purchase accounting adjustments | 0 | 0
Translation impact | 0 | 0
Reclassify to assets held for sale | 0 |
Goodwill, Ending Balance | 73,278 | 73,278
Industrial Solutions [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | 196,719 | 200,053
Acquisitions and purchase accounting adjustments | 0 | 1,614
Translation impact | 80 | (4,948)
Reclassify to assets held for sale | (5,477) |
Goodwill, Ending Balance | 191,322 | 196,719
Network Solutions [Member] |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | 578,730 | 119,681
Acquisitions and purchase accounting adjustments | 0 | 462,945
Translation impact | (1,377) | (3,896)
Reclassify to assets held for sale | 0 |
Goodwill, Ending Balance | $ 577,353 | $ 578,730

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 -Subparagraph (a) -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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits 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 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillForeignCurrencyTranslationGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_GoodwillRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of divestiture 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 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bdc_BroadcastSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bdc_EnterpriseSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bdc_IndustrialSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bdc_NetworkSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |