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Summary of Changes to Goodwill (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |  |  | 3 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2013 Applications | Dec. 31, 2013 Scores | Sep. 30, 2013 Scores | Dec. 31, 2013 Tools
Goodwill [Line Items] |  |  |  |  |
Beginning Balance | $ 773,931 | $ 559,538 | $ 146,648 | $ 146,648 | $ 67,745
Adjustments related to prior acquisitions | (770) | (770) |  |  |
Foreign currency translation adjustment | 3,670 | 3,035 |  |  | 635
Ending Balance | $ 776,831 | $ 561,803 | $ 146,648 | $ 146,648 | $ 68,380

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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e961-128460 + Details
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