XML 88 R70.htm IDEA: XBRL DOCUMENT
v3.3.1.900

SHAREHOLDER RIGHTS PLAN (Additional Information) (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2015
Shareholder Rights [Line Items] |
Shareholder rights plan description | SHAREHOLDER RIGHTS PLAN The Company's Board of Directors terminated the previously adopted shareholder rights plan (sometimes referred to as a ‘poison pill’) effective February 19, 2015.

X
- Definition Shareholder Rights [Line Items] + References No definition available. + Details
Name: | efx_ShareholderRightsLineItems
Namespace Prefix: | efx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stockholder Rights Plan, Description + References No definition available. + Details
Name: | efx_StockholderRightsPlanDescription
Namespace Prefix: | efx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration