Annual report pursuant to Section 13 and 15(d)

RESTRUCTURING CHARGES (Additional Information) (Detail)

v2.4.1.9
RESTRUCTURING CHARGES (Additional Information) (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 31, 2013
position
Restructuring Cost and Reserve [Line Items]  
Number of positions eliminated 160us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated
Selling, general and administrative expenses  
Restructuring Cost and Reserve [Line Items]  
Severance Costs 9.3us-gaap_SeveranceCosts1
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
Severance Costs Net Of Tax 5.9efx_SeveranceCostsNetOfTax
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember