Equifax Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Purchased Intangible Assets (Detail)

Purchased Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	$ 1,035.5	$ 1,077.4
Accumulated Amortization	(506.6)	(527.2)
Net	528.9	550.2
Purchased data files
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	307.3	316.2
Accumulated Amortization	(235.9)	(240.5)
Net	71.4	75.7
Acquired software and technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	34.7	68.3
Accumulated Amortization	(9.2)	(41.1)
Net	25.5	27.2
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	518.7	518.2
Accumulated Amortization	(139.2)	(130.3)
Net	379.5	387.9
Proprietary database
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	125.0	125.0
Accumulated Amortization	(100.6)	(95.5)
Net	24.4	29.5
Non-compete agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	9.0	9.0
Accumulated Amortization	(3.7)	(3.1)
Net	5.3	5.9
Trade names and other intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	40.8	40.7
Accumulated Amortization	(18.0)	(16.7)
Net	$ 22.8	$ 24.0

- Definition

Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References + Details