Operating Revenue and Operating Income by Operating Segment (Detail) (USD $) In Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2011 |
Sep. 30, 2010 |
Sep. 30, 2011 |
Sep. 30, 2010 |
|
| Segment Reporting Information [Line Items] | ||||
| Operating revenue | $ 490.4 | $ 473.8 | $ 1,450.1 | $ 1,377.5 |
| Operating income | 121.6 | 110.2 | 345.3 | 320.3 |
US Consumer Information Solutions |
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| Segment Reporting Information [Line Items] | ||||
| Operating revenue | 202.0 | 194.0 | 577.0 | 551.7 |
| Operating income | 74.0 | 72.2 | 206.5 | 200.5 |
International |
||||
| Segment Reporting Information [Line Items] | ||||
| Operating revenue | 118.6 | 122.5 | 376.6 | 356.9 |
| Operating income | 34.7 | 30.8 | 98.7 | 89.6 |
TALX |
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| Segment Reporting Information [Line Items] | ||||
| Operating revenue | 102.8 | 99.1 | 298.5 | 293.4 |
| Operating income | 23.6 | 22.7 | 66.1 | 67.2 |
North America Personal Solutions |
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| Segment Reporting Information [Line Items] | ||||
| Operating revenue | 45.5 | 39.9 | 135.1 | 119.9 |
| Operating income | 15.0 | 12.7 | 40.2 | 33.0 |
North America Commercial Solutions |
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| Segment Reporting Information [Line Items] | ||||
| Operating revenue | 21.5 | 18.3 | 62.9 | 55.6 |
| Operating income | 5.0 | 3.3 | 14.5 | 11.4 |
General Corporate Expense |
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| Segment Reporting Information [Line Items] | ||||
| Operating income | $ (30.7) | $ (31.5) | $ (80.7) | $ (81.4) |