Revenue Recognition, Tenant Receivables and Allowance for Uncollectible Accounts Effective January 1, 2018, the Company recognizes non-rental related revenue in accordance with Accounting Standards Codification, or ASC, 606, Revenue from Contracts with Customers , or ASC 606. The Company has identified its revenue streams as rental income from leasing arrangements and tenant reimbursements, which are outside the scope of ASC 606. The core principle of ASC 606 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Non-rental revenue, subject to ASC 606, is immaterial to the Company's condensed consolidated financial statements. The majority of the Company's revenue is derived from rental revenue, which is accounted for in accordance with ASC 842, Leases, or ASC 842. In accordance with ASC 842, minimum rental revenue is recognized on a straight-line basis over the term of the related lease (including rent holidays). For lease arrangements when it is not probable that the Company will collect all or substantially all of the remaining lease payments under the term of the lease, r ental revenue is limited to the lesser of the rental revenue that would be recognized on a straight-line basis or the lease payments that have been collected from the lessee. Differences between rental revenue recognized and amounts contractually due under the lease agreements are credited or charged to straight-line rent receivable or straight-line rent liability, as applicable. Tenant reimbursements, which are comprised of additional amounts recoverable from tenants for common area maintenance expenses and certain other recoverable expenses, are recognized when the services are provided and the performance obligations are satisfied. Prior to the adoption of ASC 842, tenant receivables and straight-line rent receivables were carried net of the provision for credit losses. The provision for credit losses was established for estimated losses resulting from the inability of certain tenants to meet the contractual obligations under their lease agreements. The Companys determination of the adequacy of these provisions was based primarily upon evaluations of historical loss experience, the tenants financial condition, security deposits, letters of credit, lease guarantees, current economic conditions and other relevant factors. Effective January 1, 2019, upon adoption of ASC 842, the Company is no longer recording a provision for credit losses but is, instead, assessing whether or not it is probable that the Company will collect all or substantially all of the remaining lease payments under the term of the lease. Where it is not probable that the Company will collect all or substantially all of the remaining lease payments under the term of the lease, rental revenue is limited to the lesser of the rental revenue that would be recognized on a straight-line basis or the lease payments that have been collected from the lessee. For the three months ended June 30, 2019 and 2018 , the Company recorded $451,000 and $7,097,000 , respectively, and f or the six months ended June 30, 2019 and 2018 , the Company recorded $1,226,000 and $36,023,000 , respectively, in bad debt expenses as a reduction in rental revenue in the accompanying condensed consolidated statements of comprehensive (loss) income .