Revenue Recognition The Company's revenues, which are derived primarily from rental income, include rents that each tenant pays in accordance with the terms of each lease reported on a straight-line basis over the initial term of the lease. Since many of the leases provide for rental increases at specified intervals, straight-line basis accounting requires the Company to record a receivable, and include in revenues, unbilled rent receivables that the Company will only receive if the tenant makes all rent payments required through the expiration of the initial term of the lease. The Company defers the revenue related to lease payments received from tenants in advance of their due dates. When the Company acquires a property, the term of existing leases is considered to commence as of the acquisition date for the purposes of this calculation. The Company owns certain properties with leases that include provisions for the tenant to pay contingent rental income based on a percent of the tenant's sales upon the achievement of certain sales thresholds or other targets which may be monthly, quarterly or annual targets. As the lessor to the aforementioned leases, the Company defers the recognition of contingent rental income, until the specified target that triggered the contingent rental income is achieved, or until such sales upon which percentage rent is based are known. Contingent rental income is included in rental income on the accompanying consolidated statements of operations and comprehensive loss. The Company continually reviews receivables related to rent and unbilled rent receivables and determines collectability by taking into consideration the tenant's payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the area in which the property is located. In the event that the collectability of a receivable is in doubt, the Company will record an increase in the allowance for uncollectible accounts or record a direct write-