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Acquisitions - Summary of Purchase Price Allocation (Detail) - USD ($) $ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 08, 2015 | Oct. 02, 2014 | Dec. 31, 2015 | Mar. 21, 2015 | Dec. 31, 2014 | [2]
Liabilities assumed: |  |  |  |  |  |
Goodwill |  |  | $ 161,753 | [1] |  | $ 5,227
Fluent Acquisition [Member] |  |  |  |  |  |
Including: |  |  |  |  |  |
Cash consideration |  |  | 99,300 |  |  |
Fluent Acquisition [Member] | Best One Inc [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Cash and cash equivalents | $ 6,013 |  |  |  |  |
Accounts receivable | 20,250 |  |  |  |  |
Prepaid expenses and other current assets | 691 |  |  |  |  |
Property and equipment | 242 |  |  |  |  |
Intangible assets, net | 83,919 |  |  |  |  |
Other non-current assets | 763 |  |  |  |  |
Deferred tax assets | 1,868 |  |  |  |  |
Total | 113,746 |  |  |  |  |
Liabilities assumed: |  |  |  |  |  |
Accounts payable and accrued expenses | (10,792) |  |  |  |  |
Liability for employee incentive-based compensation plan | (4,000) |  |  |  |  |
Deferred revenue | (314) |  |  |  |  |
Deferred tax liabilities | (32,111) |  |  |  |  |
Total | (47,217) |  |  |  |  |
Goodwill | 156,526 |  |  |  |  |
Total consideration | 223,055 |  |  |  |  |
Including: |  |  |  |  |  |
Cash consideration | 99,289 |  |  |  |  |
Fair value of Series B Preferred issued | 123,766 |  |  |  |  |
Total consideration | 223,055 |  |  |  |  |
Fluent Acquisition [Member] | Best One Inc [Member] | Customer Relationship [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Intangible assets, net | 30,875 |  |  |  |  |
Fluent Acquisition [Member] | Best One Inc [Member] | Trademarks [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Intangible assets, net | 16,357 |  |  |  |  |
Fluent Acquisition [Member] | Best One Inc [Member] | Domain Names [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Intangible assets, net | 191 |  |  |  |  |
Fluent Acquisition [Member] | Best One Inc [Member] | Developed Technology [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Intangible assets, net | 10,716 |  |  |  |  |
Fluent Acquisition [Member] | Best One Inc [Member] | Database [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Intangible assets, net | 25,052 |  |  |  |  |
Fluent Acquisition [Member] | Best One Inc [Member] | Non-competition Agreements [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Intangible assets, net | $ 728 |  |  |  |  |
Tiger Media [Member] | Best One Inc [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  | $ 3,569 |
Accounts receivable |  |  |  |  | 1,808 |
Other current assets |  |  |  |  | 326 |
Property and equipment |  |  |  |  | 1,419 |
Intangible assets, net |  |  |  |  | 4,280 |
Long-term deferred expenses |  |  |  |  | 586 |
Total |  |  |  |  | 11,988 |
Liabilities assumed: |  |  |  |  |  |
Accounts payable |  |  |  |  | (1,519) |
Accrued expenses and other payables |  |  |  |  | (736) |
Acquisition consideration payable |  |  |  |  | (464) |
Amounts due to related parties |  |  |  |  | (124) |
Deferred revenue |  |  |  |  | (80) |
Total |  |  |  |  | (2,923) |
Non-controlling interests |  |  |  |  | (425) |
Goodwill |  |  |  |  | 35,472 |
Total consideration |  |  |  |  | $ 44,112 |
Interactive Data [Member] |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |
Working capital, net |  |  | 426 |  |  |
Property and equipment |  |  | 229 |  |  |
Intangible assets, net |  |  | 339 |  |  |
Deferred tax assets |  |  | 99 |  |  |
Liabilities assumed: |  |  |  |  |  |
Goodwill |  |  | 5,227 |  |  |
Total consideration |  |  | $ 6,320 |  |  |
Including: |  |  |  |  |  |
Cash consideration |  | $ 6,320 |  |  |  |
[1] | As the Company completed the Fluent Acquisition on December 8, 2015, the related operating results for the year ended December 31, 2015 included Fluent's financial data from December 9, 2015 through December 31, 2015.
[2] | As IDI Holdings, the accounting acquirer of the merger consummated effective as of March 21, 2015, was incorporated on September 22, 2014, the financial data for the corresponding period in 2014 were from September 22, 2014, the date of inception, through December 31, 2014.

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