XML 51 R39.htm IDEA: XBRL DOCUMENT
v3.4.0.3

GOODWILL AND INTANGIBLE ASSETS (Purchased Intangible Assets) (Detail) - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 2,086.6 | $ 1,439.8
Accumulated Amortization | (614.8) | (611.9)
Net | 1,471.8 | 827.9
Purchased data files |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 1,032.6 | 665.9
Accumulated Amortization | (231.0) | (240.6)
Net | 801.6 | 425.3
Acquired software and technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 152.8 | 52.4
Accumulated Amortization | (31.8) | (35.5)
Net | 121.0 | 16.9
Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 732.6 | 565.9
Accumulated Amortization | (248.8) | (239.3)
Net | 483.8 | 326.6
Reacquired rights |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 73.3 | 73.3
Accumulated Amortization | (42.7) | (39.4)
Net | 30.6 | 33.9
Proprietary database |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 7.4 | 7.4
Accumulated Amortization | (5.9) | (5.8)
Net | 1.5 | 1.6
Non-compete agreements |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 29.1 | 25.8
Accumulated Amortization | (19.4) | (18.3)
Net | 9.7 | 7.5
Trade names and other intangible assets |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 58.8 | 49.1
Accumulated Amortization | (35.2) | (33.0)
Net | $ 23.6 | $ 16.1

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_AcquiredFiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DatabasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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