Acquisitions	12 Months Ended
Dec. 31, 2017
Business Combinations [Abstract]
Acquisitions	Acquisitions In August 2017, we completed the acquisition of Myriad for $22.0 million, subject to working capital adjustments, and up to $3.0 million to be paid in cash by 2019, contingent upon the achievement of certain revenue targets in fiscal years 2017 and 2018. We fair valued the contingent payment using the Monte-Carlo simulation model and preliminarily recorded $1.8 million as contingent consideration. The contingent payment is fair valued quarterly and changes are recorded within (loss)/gain on investments and other, net in our consolidated statement of operations. As of December 31, 2017, we increased the fair value of the contingent payment by $0.3 million and recorded a $0.3 million loss in our consolidated statements of operations for the year ended December 31, 2017. See Note 12 - Fair Value of Financial Instruments for further discussion. This acquisition builds on our software-as-a-service capabilities by offering a workflow tool used by the insurance industry for policy underwriting. Myriad is included as a component of our PIRM reporting 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 significant unobservable inputs. The purchase price allocation is subject to change based on our final determination of fair value in connection with intangible assets and working capital matters. We preliminarily recorded a deferred tax liability of $3.1 million, customer lists of $1.7 million with an estimated average life of 12 years, tradenames of $1.6 million with an estimated average life of 7 years, proprietary technology of $5.8 million with an estimated useful life of 8 years and goodwill of $17.3 million. The business combination did not have a material impact on our consolidated statements of operations. In August 2017, we completed the acquisition of Clareity for $15.0 million, subject to working capital adjustments. This acquisition leverages our market leading position in real estate and provides authentication-related services to real estate brokers and agents. Clareity is included as a component of our PIRM reporting 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 significant unobservable inputs. The purchase price allocation is subject to change based on our final determination of fair value in connection with intangible assets and other working capital matters. We preliminarily recorded a deferred tax liability of $2.6 million, customer lists of $3.4 million with an estimated average life of 10 years, tradenames of $0.9 million with an estimated average life of 7 years, proprietary technology of $2.0 million with an estimated useful life of 5 years and goodwill of $10.9 million. Goodwill was decreased by approximately $0.2 million from the amount recorded in the third quarter of 2017, as a result of a change in the purchase price allocation for certain working capital and tax adjustments. The business combination did not have a material impact on our consolidated statements of operations. In June 2017, we acquired a 45.0% interest in Mercury for $70.0 million, which included a call option to purchase the remaining 55.0% interest within the subsequent nine-month period. We preliminarily valued the call option at $4.6 million using the Black-Scholes model. In August 2017, we purchased the remaining 55.0% ownership of Mercury for an additional $83.0 million and wrote-off the aforementioned call option. This write-off, partially offset by a gain in connection with the acquisition, resulted in a net loss of $1.9 million within our (loss)/gain on investments and other, net in the accompanying consolidated statement of operations. Mercury is a technology company servicing small and medium-sized mortgage lenders and appraisal management companies to manage their collateral valuation operations. This investment rolls into our UWS 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 significant unobservable inputs. The purchase price allocation is subject to change based on our final determination of fair value in connection with intangible assets and working capital matters. We preliminarily recorded a deferred tax liability of $19.8 million, tradenames of $3.6 million with an estimated life of 8 years, customer lists of $41.3 million with an estimated life of 10 years, proprietary technology of $20.1 million with an estimated life of 9 years, and goodwill of $105.3 million. Goodwill was increased by approximately $5.8 million from the amount recorded in the third quarter of 2017, as a result of a change in purchase price allocation for certain working capital and tax adjustments. This business combination did not have a material impact on our consolidated statements of operations. In April 2016, we completed the acquisition of FNC for up to $475.0 million, with $400.0 million in cash paid at closing, subject to certain closing adjustments, and up to $75.0 million to be paid in cash in 2018, contingent upon the achievement of certain revenue targets in fiscal 2017. We fair-valued the contingent payment using the Monte-Carlo simulation model and initially recorded $8.0 million as contingent consideration, which was fully reversed as of December 31, 2016. As of December 31, 2017, the fiscal 2017 revenue target was not achieved, therefore no contingent consideration is expected. FNC is a leading provider of real estate collateral information technology and solutions that automates property appraisal ordering, tracking, documentation and review for lender compliance with government regulations and is included as a component of our UWS reporting segment. The acquisition expands our property valuation capabilities. 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 significant unobservable inputs. We recorded a deferred tax liability of $85.4 million, property and equipment of $79.8 million with an estimated average life of 12 years, customer lists of $145.3 million with an estimated average life of 16 years, trade names of $15.9 million with an estimated average life of 19 years, non-compete agreements of $18.8 million with an estimated average life of 5 years, and goodwill of $220.3 million. For the year ended December 31, 2017, goodwill was reduced by approximately $5.4 million as a result of a change in purchase price allocation for certain tax adjustments. This business combination did not have a material impact on our consolidated statements of operations. In January 2016, we acquired the remaining 40% mandatorily redeemable noncontrolling interest in New Zealand-based Property IQ Ltd ("PIQ") for NZD $27.8 million, or $19.0 million, and settled the mandatorily redeemable noncontrolling interest. PIQ is included as a component of our PIRM reporting segment. In December 2015, we completed the acquisition of the remaining 49.9% interest in RELS for approximately $65.0 million and recorded an investment gain of approximately $34.3 million due to the step-up in fair value on the previously held 50.1% interest, which is included in (loss)/gain on investment and other, net in the accompanying consolidated statements of operations. RELS is included as a component of our UWS reporting segment. The acquisition of RELS expands our real estate asset valuation and appraisal solutions in connection with loan originations. 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 significant unobservable inputs. We recorded property and equipment of $27.0 million with an estimated average life of 10 years, customer lists of $48.4 million with an estimated average life of 10 years, other intangibles of $5.0 million with an estimated useful life of 10 years and goodwill of $23.1 million, of which $11.5 million is deductible for tax purposes. The business combination did not have a material impact on our consolidated statements of operations. In October 2015, we completed the acquisition of Cordell for AUD $70.0 million, or $49.1 million, subject to working capital adjustments, which is included as a component of our PIRM reporting segment. The acquisition of Cordell further expands our property information capabilities in Australia. 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 significant unobservable inputs. We recorded property and equipment of $14.3 million with an estimated average life of 10 years, customer lists of $5.5 million with an estimated average life of 8 years, trade names of $0.6 million with an estimated useful life of 4 years and goodwill of $31.9 million, which is fully deductible for tax purposes. The business combination did not have a material impact on our consolidated statements of operations. In September 2015, we completed the acquisition of LandSafe for $122.0 million, subject to working capital adjustments, which is included as a component of our UWS reporting segment. The acquisition builds on our longstanding strategic relationship with a key client and continues to expand our property valuation capabilities. 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 significant unobservable inputs. We recorded customer lists of $53.4 million with an estimated average life of 10 years, other intangibles of $4.3 million with an estimated useful life of 10 years and goodwill of $64.6 million, which is fully deductible for tax purposes. The business combination did not have a material impact on our consolidated statements of operations. For the years ended December 31, 2017, 2016 and 2015, we incurred $4.5 million, $6.9 million and $3.9 million, respectively, of acquisition-related costs within selling, general and administrative expenses in our consolidated statements of operations. For the years ended December 31, 2017, 2016 and 2015, the aggregation of the business combinations in each respective period did not have a material impact on our consolidated statements of operations.

Acquisitions

In August 2017, we completed the acquisition of Myriad for $22.0 million, subject to working capital adjustments, and up to $3.0 million to be paid in cash by 2019, contingent upon the achievement of certain revenue targets in fiscal years 2017 and 2018. We fair valued the contingent payment using the Monte-Carlo simulation model and preliminarily recorded $1.8 million as contingent consideration. The contingent payment is fair valued quarterly and changes are recorded within (loss)/gain on investments and other, net in our consolidated statement of operations. As of December 31, 2017, we increased the fair value of the contingent payment by $0.3 million and recorded a $0.3 million loss in our consolidated statements of operations for the year ended December 31, 2017. See Note 12 - Fair Value of Financial Instruments for further discussion. This acquisition builds on our software-as-a-service capabilities by offering a workflow tool used by the insurance industry for policy underwriting. Myriad is included as a component of our PIRM reporting 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 significant unobservable inputs. The purchase price allocation is subject to change based on our final determination of fair value in connection with intangible assets and working capital matters. We preliminarily recorded a deferred tax liability of $3.1 million, customer lists of $1.7 million with an estimated average life of 12 years, tradenames of $1.6 million with an estimated average life of 7 years, proprietary technology of $5.8 million with an estimated useful life of 8 years and goodwill of $17.3 million. The business combination did not have a material impact on our consolidated statements of operations.

In August 2017, we completed the acquisition of Clareity for $15.0 million, subject to working capital adjustments. This acquisition leverages our market leading position in real estate and provides authentication-related services to real estate brokers and agents. Clareity is included as a component of our PIRM reporting 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 significant unobservable inputs. The purchase price allocation is subject to change based on our final determination of fair value in connection with intangible assets and other working capital matters. We preliminarily recorded a deferred tax liability of $2.6 million, customer lists of $3.4 million with an estimated average life of 10 years, tradenames of $0.9 million with an estimated average life of 7 years, proprietary technology of $2.0 million with an estimated useful life of 5 years and goodwill of $10.9 million. Goodwill was decreased by approximately $0.2 million from the amount recorded in the third quarter of 2017, as a result of a change in the purchase price allocation for certain working capital and tax adjustments. The business combination did not have a material impact on our consolidated statements of operations.

In June 2017, we acquired a 45.0% interest in Mercury for $70.0 million, which included a call option to purchase the remaining 55.0% interest within the subsequent nine-month period. We preliminarily valued the call option at $4.6 million using the Black-Scholes model. In August 2017, we purchased the remaining 55.0% ownership of Mercury for an additional $83.0 million and wrote-off the aforementioned call option. This write-off, partially offset by a gain in connection with the acquisition, resulted in a net loss of $1.9 million within our (loss)/gain on investments and other, net in the accompanying consolidated statement of operations. Mercury is a technology company servicing small and medium-sized mortgage lenders and appraisal management companies to manage their collateral valuation operations. This investment rolls into our UWS 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 significant unobservable inputs. The purchase price allocation is subject to change based on our final determination of fair value in connection with intangible assets and working capital matters. We preliminarily recorded a deferred tax liability of $19.8 million, tradenames of $3.6 million with an estimated life of 8 years, customer lists of $41.3 million with an estimated life of 10 years, proprietary technology of $20.1 million with an estimated life of 9 years, and goodwill of $105.3 million. Goodwill was increased by approximately $5.8 million from the amount recorded in the third quarter of 2017, as a result of a change in purchase price allocation for certain working capital and tax adjustments. This business combination did not have a material impact on our consolidated statements of operations.

In April 2016, we completed the acquisition of FNC for up to $475.0 million, with $400.0 million in cash paid at closing, subject to certain closing adjustments, and up to $75.0 million to be paid in cash in 2018, contingent upon the achievement of certain revenue targets in fiscal 2017. We fair-valued the contingent payment using the Monte-Carlo simulation model and initially recorded $8.0 million as contingent consideration, which was fully reversed as of December 31, 2016. As of December 31, 2017, the fiscal 2017 revenue target was not achieved, therefore no contingent consideration is expected. FNC is a leading provider of real estate collateral information technology and solutions that automates property appraisal ordering, tracking, documentation and review for lender compliance with government regulations and is included as a component of our UWS reporting segment. The acquisition expands our property valuation capabilities. 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 significant unobservable inputs. We recorded a deferred tax liability of $85.4 million, property and equipment of $79.8 million with an estimated average life of 12 years, customer lists of $145.3 million with an estimated average life of 16 years, trade names of $15.9 million with an estimated average life of 19 years, non-compete agreements of $18.8 million with an estimated average life of 5 years, and goodwill of $220.3 million. For the year ended December 31, 2017, goodwill was reduced by approximately $5.4 million as a result of a change in purchase price allocation for certain tax adjustments. This business combination did not have a material impact on our consolidated statements of operations.

In January 2016, we acquired the remaining 40% mandatorily redeemable noncontrolling interest in New Zealand-based Property IQ Ltd ("PIQ") for NZD $27.8 million, or $19.0 million, and settled the mandatorily redeemable noncontrolling interest. PIQ is included as a component of our PIRM reporting segment.

In December 2015, we completed the acquisition of the remaining 49.9% interest in RELS for approximately $65.0 million and recorded an investment gain of approximately $34.3 million due to the step-up in fair value on the previously held 50.1% interest, which is included in (loss)/gain on investment and other, net in the accompanying consolidated statements of operations. RELS is included as a component of our UWS reporting segment. The acquisition of RELS expands our real estate asset valuation and appraisal solutions in connection with loan originations. 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 significant unobservable inputs. We recorded property and equipment of $27.0 million with an estimated average life of 10 years, customer lists of $48.4 million with an estimated average life of 10 years, other intangibles of $5.0 million with an estimated useful life of 10 years and goodwill of $23.1 million, of which $11.5 million is deductible for tax purposes. The business combination did not have a material impact on our consolidated statements of operations.

In October 2015, we completed the acquisition of Cordell for AUD $70.0 million, or $49.1 million, subject to working capital adjustments, which is included as a component of our PIRM reporting segment. The acquisition of Cordell further expands our property information capabilities in Australia. 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 significant unobservable inputs. We recorded property and equipment of $14.3 million with an estimated average life of 10 years, customer lists of $5.5 million with an estimated average life of 8 years, trade names of $0.6 million with an estimated useful life of 4 years and goodwill of $31.9 million, which is fully deductible for tax purposes. The business combination did not have a material impact on our consolidated statements of operations.

In September 2015, we completed the acquisition of LandSafe for $122.0 million, subject to working capital adjustments, which is included as a component of our UWS reporting segment. The acquisition builds on our longstanding strategic relationship with a key client and continues to expand our property valuation capabilities. 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 significant unobservable inputs. We recorded customer lists of $53.4 million with an estimated average life of 10 years, other intangibles of $4.3 million with an estimated useful life of 10 years and goodwill of $64.6 million, which is fully deductible for tax purposes. The business combination did not have a material impact on our consolidated statements of operations.

For the years ended December 31, 2017, 2016 and 2015, we incurred $4.5 million, $6.9 million and $3.9 million, respectively, of acquisition-related costs within selling, general and administrative expenses in our consolidated statements of operations. For the years ended December 31, 2017, 2016 and 2015, the aggregation of the business combinations in each respective period did not have a material impact on our consolidated statements of operations.