Impairments	6 Months Ended
Jun. 30, 2017
Impairments
Impairments	14. 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 releases, 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. During the second quarter of 2017, we recorded total provisions for impairment of $2.3 million on four sold properties, two properties classified as held for sale, and one property classified as held for investment. For the first six months of 2017, we recorded total provisions for impairment of $7.7 million on seven sold properties, two properties classified as held for sale, and six properties classified as held for investment. In comparison, for the second quarter of 2016, we recorded total provisions for impairment of $6.3 million on 11 sold properties. For the first six months of 2016, we recorded total provisions for impairment of $8.2 million on 18 sold properties.

14. 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 releases, 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.

During the second quarter of 2017, we recorded total provisions for impairment of $2.3 million on four sold properties, two properties classified as held for sale, and one property classified as held for investment. For the first six months of 2017, we recorded total provisions for impairment of $7.7 million on seven sold properties, two properties classified as held for sale, and six properties classified as held for investment.

In comparison, for the second quarter of 2016, we recorded total provisions for impairment of $6.3 million on 11 sold properties. For the first six months of 2016, we recorded total provisions for impairment of $8.2 million on 18 sold properties.