Impairments	3 Months Ended
Mar. 31, 2019
Property, Plant and Equipment [Abstract]
Impairments	Impairments We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. A provision is made for impairment if estimated future operating cash flows (undiscounted and without interest charges) plus estimated disposition proceeds (undiscounted) are less than the current book value of the property. Key factors that we utilize in this analysis include projected rental rates, estimated holding periods, historical sales and re-leases, capital expenditures and property sales capitalization rates. If a property is classified as held for sale, it is carried at the lower of carrying cost or estimated fair value, less estimated cost to sell, and depreciation of the property ceases. For the first three months of 2019, we recorded total provisions for impairment of $4.7 million on three properties classified as held for sale and four sold properties. For the first three months of 2018, we recorded total provisions for impairment of $14.2 million on nine sold properties and one property held for investment.

Impairments

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. A provision is made for impairment if estimated future operating cash flows (undiscounted and without interest charges) plus estimated disposition proceeds (undiscounted) are less than the current book value of the property. Key factors that we utilize in this analysis include projected rental rates, estimated holding periods, historical sales and re-leases, capital expenditures and property sales capitalization rates. If a property is classified as held for sale, it is carried at the lower of carrying cost or estimated fair value, less estimated cost to sell, and depreciation of the property ceases.

For the first three months of 2019, we recorded total provisions for impairment of $4.7 million on three properties classified as held for sale and four sold properties. For the first three months of 2018, we recorded total provisions for impairment of $14.2 million on nine sold properties and one property held for investment.