Acquisitions	9 Months Ended
Sep. 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 recorded $162.7 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. 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 second quarter of 2011 when the agreements were terminated upon the closing of the acquisition in May 2011. In September 2011, we completed our acquisition of Tarasoft, a Canadian provider of multiple listing services ("MLS"), for a cash purchase price of C$30.0 million or $30.3 million. Tarasoft is included as a component of the specialty finance solutions group of the data and analytics segment. 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 $13.5 million of goodwill, $2.7 million of customer lists with an estimated average life of 10 years, $0.4 million of tradenames with an estimated average life of 10 years and $0.2 million of noncompete agreements with an estimated average life of 5 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.

Acquisitions

9 Months Ended

Sep. 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 recorded $162.7 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. 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 second quarter of 2011 when the agreements were terminated upon the closing of the acquisition in May 2011.

In September 2011, we completed our acquisition of Tarasoft, a Canadian provider of multiple listing services ("MLS"), for a cash purchase price of C$30.0 million or $30.3 million. Tarasoft is included as a component of the specialty finance solutions group of the data and analytics segment. 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 $13.5 million of goodwill, $2.7 million of customer lists with an estimated average life of 10 years, $0.4 million of tradenames with an estimated average life of 10 years and $0.2 million of noncompete agreements with an estimated average life of 5 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.