Acquisitions	6 Months Ended
Jun. 30, 2011
Business Combinations [Abstract]
Acquisitions [Text Block]	Acquisitions. In March 2011, we completed our acquisition of the remaining interest in Dorado for $31.6 million in cash. Dorado is included as a component of the default and technology services reporting unit of the business and information services segment. We previously held a 39.0% equity method investment in this entity and as a result of the purchase price paid, we recognized a loss of $14.5 million on our existing investment in the fourth quarter of 2010. The purchase price was allocated to the assets acquired and liabilities assumed using a variety of valuation techniques including discounted cash flow analysis which included Level 3 inputs. We have recorded $18.9 million of goodwill, $20.4 million of customer lists with an estimated average life of 12 years, and $3.2 million of tradenames with an estimated average life of 5 years. The business combination did not have a material impact on our condensed consolidated financial statements. In May 2011, we completed our acquisition of the remaining interest in RP Data for a cash purchase price of A$147.2 million or $157.2 million. RP Data is included as a component of the risk and fraud analytics reporting unit of the data and analytics segment. We previously held a 40.2% equity method investment in this entity and as a result of the purchase price paid and the change in control, we recognized a gain of $58.9 million on our existing investment in the second quarter of 2011. The purchase price was allocated to the assets acquired and liabilities assumed using a variety of valuation techniques including discounted cash flow analysis which included Level 3 inputs. We have preliminarily recorded approximately $162.9 million of goodwill, $46.7 million of of customer lists with an estimated average life of 8 years and $11.7 million of tradenames with an estimated average life of 10 years. We are in the process of finalizing the purchase price allocation and as a result, these allocations may change. The business combination did not have a material impact on our condensed consolidated financial statements. We entered into forward purchase agreements totaling A$180.3 million to economically hedge a portion of the foreign currency exchange rate risk associated with the acquisition of RP Data. We recorded a gain of $1.8 million during the three months ended June 30, 2011 when the agreements were terminated upon the closing of the acquisition in May 2011.

Acquisitions

6 Months Ended

Jun. 30, 2011

Acquisitions.

In March 2011, we completed our acquisition of the remaining interest in Dorado for $31.6 million in cash. Dorado is included as a component of the default and technology services reporting unit of the business and information services segment. We previously held a 39.0% equity method investment in this entity and as a result of the purchase price paid, we recognized a loss of $14.5 million on our existing investment in the fourth quarter of 2010. The purchase price was allocated to the assets acquired and liabilities assumed using a variety of valuation techniques including discounted cash flow analysis which included Level 3 inputs. We have recorded $18.9 million of goodwill, $20.4 million of customer lists with an estimated average life of 12 years, and $3.2 million of tradenames with an estimated average life of 5 years. The business combination did not have a material impact on our condensed consolidated financial statements.

In May 2011, we completed our acquisition of the remaining interest in RP Data for a cash purchase price of A$147.2 million or $157.2 million. RP Data is included as a component of the risk and fraud analytics reporting unit of the data and analytics segment. We previously held a 40.2% equity method investment in this entity and as a result of the purchase price paid and the change in control, we recognized a gain of $58.9 million on our existing investment in the second quarter of 2011. The purchase price was allocated to the assets acquired and liabilities assumed using a variety of valuation techniques including discounted cash flow analysis which included Level 3 inputs. We have preliminarily recorded approximately $162.9 million of goodwill, $46.7 million of of customer lists with an estimated average life of 8 years and $11.7 million of tradenames with an estimated average life of 10 years. We are in the process of finalizing the purchase price allocation and as a result, these allocations may change. The business combination did not have a material impact on our condensed consolidated financial statements.

We entered into forward purchase agreements totaling A$180.3 million to economically hedge a portion of the foreign currency exchange rate risk associated with the acquisition of RP Data. We recorded a gain of $1.8 million during the three months ended June 30, 2011 when the agreements were terminated upon the closing of the acquisition in May 2011.