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v3.7.0.1

Selected Financial Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 474.8 | $ 425.7 | $ 929.7 | $ 831.4
Operating Income (Loss) | 115.5 | 63.5 | 216.6 | 115.4
U.S. Information Services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating Income (Loss) | 83.7 | 41.4 | 156.0 | 71.6
International |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating Income (Loss) | 12.6 | 8.1 | 21.5 | 13.1
Consumer Interactive |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating Income (Loss) | 49.7 | 43.6 | 97.7 | 84.0
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating Income (Loss) | (30.5) | (29.5) | (58.6) | (53.3)
Intersegment Eliminations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | (15.8) | (15.2) | (31.4) | (30.3)
Operating Income (Loss) | 0.0 | 0.0 | 0.0 | 0.0
Intersegment Eliminations [Member] | U.S. Information Services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | (14.7) | (14.2) | (29.1) | (28.4)
Operating Income (Loss) | (14.3) | (13.8) | (28.4) | (27.7)
Intersegment Eliminations [Member] | International |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | (1.1) | (1.0) | (2.2) | (1.9)
Operating Income (Loss) | (0.8) | (0.7) | (1.6) | (1.4)
Intersegment Eliminations [Member] | Consumer Interactive |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 0.0 | 0.0 | 0.0 | 0.0
Operating Income (Loss) | 15.1 | 14.6 | 30.0 | 29.1
Intersegment Eliminations [Member] | Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 0.0 | 0.0 | 0.0 | 0.0
Segment Revenues Gross Intersegment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 490.6 | 440.9 | 961.1 | 861.8
Segment Revenues Gross Intersegment [Member] | U.S. Information Services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 297.9 | 256.8 | 580.1 | 503.8
Segment Revenues Gross Intersegment [Member] | International |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 87.3 | 77.6 | 170.7 | 145.4
Segment Revenues Gross Intersegment [Member] | Consumer Interactive |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 105.4 | $ 106.5 | $ 210.3 | $ 212.6

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