Kristy Nicholas
Head of Investor Relations
Thanks, Greg. Good afternoon, and welcome to Expedia, Inc.'s financial results conference call for the fourth quarter and full year ended December 31, 2017. I'm pleased to be joined on the call today by Mark Okerstrom, Expedia's CEO and President; and Alan Pickerill, our CFO. The following discussion, including responses to your questions, reflects management's views as of today, February 8, 2018, only. We do not undertake any obligation to update or revise this information. As always, some of the statements we made on today's call are forward looking, typically preceded by words such as we expect, we believe, we anticipate or similar statements. Please refer to today's earnings release and the company's filings with the SEC for information about factors which could cause our actual results to differ materially from these forward-looking statements. You will find reconciliations of non-GAAP measures to the most comparable GAAP measures discussed today in our earnings release, which is posted on the company's Investor Relations website at ir.expediainc.com, and I encourage you to periodically visit our IR website for other important content, including today's earnings release and our latest investor deck. I would like to remind you that beginning in Q1 '17, we include HomeAway on-platform gross bookings and property nights in our operational metrics, and such balances have been added to prior year's gross bookings and lodging room nights for clean comparison. Unless otherwise stated, all references to cost of revenue, selling and marketing expense, general and administrative expense and technology and content expense exclude stock-based compensation and depreciation expense. And all comparisons on this call will be against our results for the comparable period of 2016. Finally, a reconciliation of Adjusted EBITDA guidance to the closest corresponding GAAP measure is not provided because we are unable to predict the ultimate outcome of certain significant items without unreasonable efforts. These items include, but are not limited to, foreign exchange, returns on investment spending, acquisition-related or restructuring expenses. As such, the items that are excluded from our non-GAAP guidance are uncertain, dependent on various factors, and could have a material impact on GAAP results for the guidance period. And with that, let me turn the call over to Mark.