Revenue Recognition Lease revenue includes rents that each tenant pays in accordance with the terms of its respective lease reported evenly over the non-cancelable term of the lease. Most of our leases contain rental increases at specified intervals. We recognize such revenues on a straight-line basis. Deferred rent receivable in the accompanying consolidated balance sheet includes the cumulative difference between lease revenue, as recorded on a straight-line basis, and rents received from the tenants in accordance with the lease terms, along with the capitalized above-market in-place lease values of certain acquired properties. Deferred rent liability in the accompanying consolidated balance sheet includes the capitalized below-market in-place lease values of certain acquired properties. Accordingly, we determine, in our judgment, to what extent the deferred rent receivable applicable to each specific tenant is collectible. We review deferred rent receivable, as it relates to straight line rents, on a quarterly basis and take into consideration the tenants payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the geographic area in which the property is located. In the event that the collectability of deferred rent with respect to any given tenant is in doubt, we record an allowance for uncollectible accounts or record a direct write-off of the specific rent receivable. We incurred $0.2 million in deferred rent write offs during the year ended December 31, 2018 . No such reserves or direct write offs were recorded during the year ended 2019 and 2017 , respectively. Tenant recovery revenue includes payments from tenants as reimbursements for franchise taxes, management fees, insurance, maintenance and repairs, utilities, and ground lease payments. We recognize tenant recovery revenue in the same periods that we incur the related expenses. We do not record any tenant recovery revenues or operating expenses associated with costs paid directly by our tenants for our net leased properties.