Acquisitions	3 Months Ended
Mar. 31, 2018
Business Combinations [Abstract]
Acquisitions	Acquisitions: 2018 Acquisitions On February 21, 2018, the Company acquired 100 percent of the stock of Business Insight Limited (“Business Insight”), a provider of predictive analytics for insurers in the U.K. and Ireland, for a net cash purchase price of $17.1 million, including a holdback of $0.9 million. Business Insight has become part of the underwriting and ratings category within the Insurance segment. Business Insight offers a comprehensive set of peril models to support underwriting and rating for the commercial property and homeowners insurance market. On January 5, 2018, the Company acquired 100 percent of the stock of Marketview Limited ("Marketview") for a net cash purchase price of $4.0 million, of which $0.4 million represents indemnity escrows. Marketview is a provider of consumer spending analysis and insights across the retail, hospitality, property, and government sectors in New Zealand. Marketview has become part of the Financial Services segment. The acquisition helps expand the Company's solutions related to consumer spending analytics across the Australasia and Oceania regions by combining its domain expertise and proprietary data assets with those of Marketview. The preliminary allocations of the purchase price for the 2017 and 2018 acquisitions with less than a year ownership are subject to revisions as additional information is obtained about the facts and circumstances that existed as of each acquisition date. The revisions may have a significant impact on the condensed consolidated financial statements. The allocations of the purchase price will be finalized once all information is obtained, but not to exceed one year from the acquisition date. The primary areas of the purchase price allocation that are not yet finalized relate to operating leases, income and non-income taxes, deferred revenues, the valuation of intangible assets acquired, and residual goodwill. The preliminary amounts assigned to intangible assets by type for these acquisitions were based upon the Company's valuation model and historical experiences with entities with similar business characteristics. For the three months ended March 31, 2018, the Company finalized the purchase accounting for the acquisitions of Arium Limited ("Arium"), Healix International Holdings Limited ("Healix"), Emergent Network Intelligence Limited ("ENI"), and Fintellix Solutions Private Limited ("Fintellix") during the measurement periods in accordance with ASC 805. The impact of finalization of the purchase accounting associated with these acquisitions were not material to the accompanying condensed consolidated statements of operations for the three months ended March 31, 2018 and 2017. For the three months ended March 31, 2018 and 2017, the Company incurred transaction costs of $0.7 million and $1.3 million, respectively. The transaction costs were included within "Selling, general and administrative" expenses in the accompanying condensed consolidated statements of operations. For the 2018 acquisitions, the goodwill of $15.8 million associated with the stock purchases of Marketview and Business Insight is not deductible for tax purposes. The 2018 acquisitions were immaterial, both individually and in the aggregate, to the Company's condensed consolidated financial statements for the three months ended March 31, 2018 and 2017 and therefore, supplemental information disclosure on an unaudited pro forma basis is not presented. Acquisition Escrows Pursuant to the related acquisition agreements, the Company has funded various escrow accounts to satisfy pre-acquisition indemnity and tax claims arising subsequent to the acquisition date, as well as a portion of the contingent payments. At March 31, 2018 and December 31, 2017, the current portion of the escrows amounted to $48.1 million and $22.9 million, and the noncurrent portion of the escrows amounted to $0.7 million and $26.3 million, respectively. The current and noncurrent portions of the escrows have been included in “Other current assets” and "Other assets" in the accompanying condensed consolidated balance sheets, respectively.

Acquisitions:

2018 Acquisitions

On February 21, 2018, the Company acquired 100 percent of the stock of Business Insight Limited (“Business Insight”), a provider of predictive analytics for insurers in the U.K. and Ireland, for a net cash purchase price of $17.1 million, including a holdback of $0.9 million. Business Insight has become part of the underwriting and ratings category within the Insurance segment. Business Insight offers a comprehensive set of peril models to support underwriting and rating for the commercial property and homeowners insurance market.

On January 5, 2018, the Company acquired 100 percent of the stock of Marketview Limited ("Marketview") for a net cash purchase price of $4.0 million, of which $0.4 million represents indemnity escrows. Marketview is a provider of consumer spending analysis and insights across the retail, hospitality, property, and government sectors in New Zealand. Marketview has become part of the Financial Services segment. The acquisition helps expand the Company's solutions related to consumer spending analytics across the Australasia and Oceania regions by combining its domain expertise and proprietary data assets with those of Marketview.

The preliminary allocations of the purchase price for the 2017 and 2018 acquisitions with less than a year ownership are subject to revisions as additional information is obtained about the facts and circumstances that existed as of each acquisition date. The revisions may have a significant impact on the condensed consolidated financial statements. The allocations of the purchase price will be finalized once all information is obtained, but not to exceed one year from the acquisition date. The primary areas of the purchase price allocation that are not yet finalized relate to operating leases, income and non-income taxes, deferred revenues, the valuation of intangible assets acquired, and residual goodwill. The preliminary amounts assigned to intangible assets by type for these acquisitions were based upon the Company's valuation model and historical experiences with entities with similar business characteristics. For the three months ended March 31, 2018, the Company finalized the purchase accounting for the acquisitions of Arium Limited ("Arium"), Healix International Holdings Limited ("Healix"), Emergent Network Intelligence Limited ("ENI"), and Fintellix Solutions Private Limited ("Fintellix") during the measurement periods in accordance with ASC 805. The impact of finalization of the purchase accounting associated with these acquisitions were not material to the accompanying condensed consolidated statements of operations for the three months ended March 31, 2018 and 2017.

For the three months ended March 31, 2018 and 2017, the Company incurred transaction costs of $0.7 million and $1.3 million, respectively. The transaction costs were included within "Selling, general and administrative" expenses in the accompanying condensed consolidated statements of operations. For the 2018 acquisitions, the goodwill of $15.8 million associated with the stock purchases of Marketview and Business Insight is not deductible for tax purposes.

The 2018 acquisitions were immaterial, both individually and in the aggregate, to the Company's condensed consolidated financial statements for the three months ended March 31, 2018 and 2017 and therefore, supplemental information disclosure on an unaudited pro forma basis is not presented.

Acquisition Escrows

Pursuant to the related acquisition agreements, the Company has funded various escrow accounts to satisfy pre-acquisition indemnity and tax claims arising subsequent to the acquisition date, as well as a portion of the contingent payments. At March 31, 2018 and December 31, 2017, the current portion of the escrows amounted to $48.1 million and $22.9 million, and the noncurrent portion of the escrows amounted to $0.7 million and $26.3 million, respectively. The current and noncurrent portions of the escrows have been included in “Other current assets” and "Other assets" in the accompanying condensed consolidated balance sheets, respectively.