Assets Held For Sale	9 Months Ended
Sep. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Assets Held For Sale	ASSETS HELD FOR SALE We consider properties to be assets held for sale when all of the following criteria are met: (i) a formal commitment to a plan to sell a property has been made and exercised; (ii) the property is available for sale in its present condition; (iii) actions required to complete the sale of the property have been initiated; (iv) sale of the property is probable and we expect the sale will occur within one year; and (v) the property is being actively marketed for sale at a price that is reasonable given its current market value. Upon designation as an asset held for sale, we record the carrying value of each property at the lower of its carrying value or its estimated fair value, less estimated costs to sell, and depreciation of the property ceases. There were no assets held for sale at September 30, 2018 or December 31, 2017. During the three months ended September 30, 2017 there were no assets that were classified as assets held for sale. During the nine months ended September 30, 2017, we sold assets classified as held for sale with a net book value of $464 and recorded a net gain on the assets held for sale of $197 in other income, net on the condensed consolidated statements of income. There were no assets held for sale at September 30, 2017. We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. For assets classified as held and used, impairment may occur if projected undiscounted cash flows are not adequate to cover the carrying value of the assets. In such cases, additional analysis is conducted to determine the amount of the loss to be recognized. The impairment loss is calculated as the difference between the carrying amount of the asset and its estimated fair value. The analysis requires estimates of the amount and timing of projected cash flows and, where applicable, selection of an appropriate discount rate. Such estimates are critical in determining whether any impairment charge should be recorded and the amount of such charge if an impairment loss is deemed necessary. We recorded an impairment loss of $320 to account for the expected loss on an abandoned property that does not qualify as an asset held for sale, where the net book value of the property exceeded the estimated selling price less estimated selling expenses, during the three- and nine-month periods ended September 30, 2018. There were no impairment losses recorded during the three- and nine-month periods ended September 30, 2017. The impairment losses are included in other income, net in the condensed consolidated statements of income.

ASSETS HELD FOR SALE

We consider properties to be assets held for sale when all of the following criteria are met: (i) a formal commitment to a plan to sell a property has been made and exercised; (ii) the property is available for sale in its present condition; (iii) actions required to complete the sale of the property have been initiated; (iv) sale of the property is probable and we expect the sale will occur within one year; and (v) the property is being actively marketed for sale at a price that is reasonable given its current market value.

Upon designation as an asset held for sale, we record the carrying value of each property at the lower of its carrying value or its estimated fair value, less estimated costs to sell, and depreciation of the property ceases. There were no assets held for sale at September 30, 2018 or December 31, 2017. During the three months ended September 30, 2017 there were no assets that were classified as assets held for sale. During the nine months ended September 30, 2017, we sold assets classified as held for sale with a net book value of $464 and recorded a net gain on the assets held for sale of $197 in other income, net on the condensed consolidated statements of income. There were no assets held for sale at September 30, 2017.

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. For assets classified as held and used, impairment may occur if projected undiscounted cash flows are not adequate to cover the carrying value of the assets. In such cases, additional analysis is conducted to determine the amount of the loss to be recognized. The impairment loss is calculated as the difference between the carrying amount of the asset and its estimated fair value. The analysis requires estimates of the amount and timing of projected cash flows and, where applicable, selection of an appropriate discount rate. Such estimates are critical in determining whether any impairment charge should be recorded and the amount of such charge if an impairment loss is deemed necessary.

We recorded an impairment loss of $320 to account for the expected loss on an abandoned property that does not qualify as an asset held for sale, where the net book value of the property exceeded the estimated selling price less estimated selling expenses, during the three- and nine-month periods ended September 30, 2018. There were no impairment losses recorded during the three- and nine-month periods ended September 30, 2017. The impairment losses are included in other income, net in the condensed consolidated statements of income.