qualitative assessment for impairment on each reporting unit’s goodwill. Based on the results of our qualitative assessments performed during the fourth quarter of 2016, we determined that no impairment existed, nor do we believe there is a material risk of it being impaired in the near term at our hotel group, destination network and vacation ownership reporting units. To the extent estimated market-based valuation multiples and/or discounted cash flows are revised downward, we may be required to write-down all or a portion of goodwill, which would adversely impact earnings.

We also determine whether the carrying value of other indefinite-lived intangible assets is impaired on an annual basis or more frequently if indicators of potential impairment exist. Application of the other indefinite-lived intangible assets impairment test requires judgment in the assumptions underlying the approach used to determine fair value. The fair value of each other indefinite-lived intangible asset is estimated using a discounted cash flow methodology. This analysis requires significant judgments, including anticipated market conditions, operating expense trends, estimation of future cash flows, which are dependent on internal forecasts, and estimation of long-term rate of growth. The estimates used to calculate the fair value of other indefinite-lived intangible asset change from year to year based on operating results and market conditions. Changes in these estimates and assumptions could materially affect the determination of fair value and the other indefinite-lived intangible assets impairment.

We also evaluate the recoverability of our other long-lived assets, including property and equipment and amortizable intangible assets, if circumstances indicate impairment may have occurred, pursuant to guidance for impairment or disposal of long-lived assets. This analysis is performed by comparing the respective carrying values of the assets to the current and expected future cash flows, on an undiscounted basis, to be generated from such assets. Property and equipment is evaluated separately within each segment. If such analysis indicates that the carrying value of these assets is not recoverable, the carrying value of such assets is reduced to fair value.

Business Combinations. A component of our growth strategy has been to acquire and integrate businesses that complement our existing operations. We account for business combinations in accordance with the guidance for business combinations and related literature. Accordingly, we allocate the purchase price of acquired companies to the tangible and intangible assets acquired and liabilities assumed based upon their estimated fair values at the date of purchase. The difference between the purchase price and the fair value of the net assets acquired is recorded as goodwill.

In determining the fair values of assets acquired and liabilities assumed in a business combination, we use various recognized valuation methods including present value modeling and referenced market values (where available). Further, we make assumptions within certain valuation techniques including discount rates and timing of future cash flows. Valuations are performed by management or independent valuation specialists under management’s supervision, where appropriate. We believe that the estimated fair values assigned to the assets acquired and liabilities assumed are based on reasonable assumptions that marketplace participants would use. However, such assumptions are inherently uncertain and actual results could differ from those estimates.