Significant Accounting Policies	9 Months Ended
Sep. 30, 2013
Accounting Policies [Abstract]
Significant Accounting Policies	NOTE 2: SIGNIFICANT ACCOUNTING POLICIES *Deferred Merchant Payables* We receive cash from travelers at the time of booking related to our transaction-based businesses and we record these amounts, net of commissions, on our consolidated balance sheets as deferred merchant payables. We pay the hotel or vacation rental owners after the travelers’ use and subsequent billing from the hotel or vacation rental owners. Therefore, we receive cash from the traveler prior to paying the hotel or vacation rental owners, and this operating cycle represents a working capital source of cash to us. As long as our transaction-based businesses grow, we expect that changes in working capital related to these transactions will positively impact operating cash flows. As of September 30, 2013, our deferred merchant payables balance was $28.6 million and for the nine months ended September 30, 2013, the related transactions generated positive operating cash flow of $12.8 million. A payable balance of $14.5 million was acquired with our business acquisitions during the nine months ended September 30, 2013. For additional information on our business acquisitions refer to “Note 6—Acquisitions” below. The deferred merchant payables balance at December 31, 2012 was $1.3 million. There have been no material changes or other additions to our significant accounting policies since December 31, 2012. For additional information about our critical accounting policies and estimates, refer to “Note 2—Significant Accounting Policies,” included in our Annual Report on Form 10-K for the year ended December 31, 2012. *Recently Adopted Accounting Pronouncements* Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income In February 2013, the Financial Accounting Standards Board, or FASB, issued new accounting guidance which adds new disclosure requirements for items reclassified out of accumulated other comprehensive income. The new guidance requires that companies present, either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified based on its source and is effective for public companies in interim and annual reporting periods beginning after December 15, 2012. Accordingly, we have adopted these presentation requirements during the first quarter of 2013. The adoption of this new guidance did not have a material impact on our consolidated financial statements or related disclosures. *New Accounting Pronouncements Not Yet Adopted* Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists In July 2013, the FASB issued new accounting guidance on the presentation of unrecognized tax benefits. The new guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows: to the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use the deferred tax asset for such purpose, then the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2013, with early adoption permitted. Accordingly, we plan to adopt these presentation requirements during the first quarter of 2014. The adoption of this new guidance is not expected to have a material impact on our consolidated financial statements or related disclosures.

NOTE 2: SIGNIFICANT ACCOUNTING POLICIES

Deferred Merchant Payables

We receive cash from travelers at the time of booking related to our transaction-based businesses and we record these amounts, net of commissions, on our consolidated balance sheets as deferred merchant payables. We pay the hotel or vacation rental owners after the travelers’ use and subsequent billing from the hotel or vacation rental owners. Therefore, we receive cash from the traveler prior to paying the hotel or vacation rental owners, and this operating cycle represents a working capital source of cash to us. As long as our transaction-based businesses grow, we expect that changes in working capital related to these transactions will positively impact operating cash flows. As of September 30, 2013, our deferred merchant payables balance was $28.6 million and for the nine months ended September 30, 2013, the related transactions generated positive operating cash flow of $12.8 million. A payable balance of $14.5 million was acquired with our business acquisitions during the nine months ended September 30, 2013. For additional information on our business acquisitions refer to “Note 6—Acquisitions” below. The deferred merchant payables balance at December 31, 2012 was $1.3 million.

There have been no material changes or other additions to our significant accounting policies since December 31, 2012. For additional information about our critical accounting policies and estimates, refer to “Note 2—Significant Accounting Policies,” included in our Annual Report on Form 10-K for the year ended December 31, 2012.

Recently Adopted Accounting Pronouncements

Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income

In February 2013, the Financial Accounting Standards Board, or FASB, issued new accounting guidance which adds new disclosure requirements for items reclassified out of accumulated other comprehensive income. The new guidance requires that companies present, either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified based on its source and is effective for public companies in interim and annual reporting periods beginning after December 15, 2012. Accordingly, we have adopted these presentation requirements during the first quarter of 2013. The adoption of this new guidance did not have a material impact on our consolidated financial statements or related disclosures.

New Accounting Pronouncements Not Yet Adopted

Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists

In July 2013, the FASB issued new accounting guidance on the presentation of unrecognized tax benefits. The new guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows: to the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use the deferred tax asset for such purpose, then the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2013, with early adoption permitted. Accordingly, we plan to adopt these presentation requirements during the first quarter of 2014. The adoption of this new guidance is not expected to have a material impact on our consolidated financial statements or related disclosures.