XML 62 R42.htm IDEA: XBRL DOCUMENT
v3.6.0.2

GOODWILL AND INTANGIBLE ASSETS - SCHEDULE OF INTANGIBLE ASSETS BY MAJOR CLASS (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Accumulated Amortization | $ (178,813) | $ (138,374) |
Intangible Assets Gross Excluding Goodwill | 572,175 | 542,023 |
Intangible Assets, Net (Excluding Goodwill) | 393,362 | 403,649 |
Trademarks |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 25,098 | 22,793 |
Finite-Lived Intangible Assets, Accumulated Amortization | (3,426) | (1,581) |
Finite-Lived Intangible Assets, Net | 21,672 | 21,212 |
Non-compete agreements |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 196 | 429 |
Finite-Lived Intangible Assets, Accumulated Amortization | (63) | (201) |
Finite-Lived Intangible Assets, Net | 133 | 228 |
Customer relationships |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 362,637 | 339,820 |
Finite-Lived Intangible Assets, Accumulated Amortization | (126,835) | (95,634) |
Finite-Lived Intangible Assets, Net | 235,802 | 244,186 |
Distribution agreements |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 38,972 | 38,726 |
Finite-Lived Intangible Assets, Accumulated Amortization | (19,295) | (16,595) |
Finite-Lived Intangible Assets, Net | 19,677 | 22,131 |
Patents |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 48,310 | 48,310 |
Finite-Lived Intangible Assets, Accumulated Amortization | (29,194) | (24,363) |
Finite-Lived Intangible Assets, Net | $ 19,116 | 23,947 |
Finite-Lived Intangible Assets, Useful Life, Minimum | 10 years |  |
Trademarks |  |  |
Intangible Assets [Line Items] |  |  |
Indefinite-Lived Intangible Assets, Gross | $ 96,962 | $ 91,945 |
Minimum |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 2 years |  |
Minimum | Trademarks |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 4 years | 12 years | 5 years
Minimum | Non-compete agreements |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 2 years |  |
Minimum | Customer relationships |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 2 years | 11 years | 2 years
Minimum | Distribution agreements |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 10 years |  |
Maximum |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 20 years |  |
Maximum | Trademarks |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 15 years | 13 years | 10 years
Maximum | Non-compete agreements |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 7 years |  |
Maximum | Customer relationships |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 20 years | 14 years | 12 years
Maximum | Distribution agreements |  |  |
Intangible Assets [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 19 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 Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. + References No definition available. + Details
Name: | us-gaap_IntangibleAssetsGrossExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_IntangibleAssetsNetExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Goodwill [Line Items] [Line Items] + References No definition available. + Details
Name: | wcc_GoodwillLineItemsLineItems
Namespace Prefix: | wcc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |