Leases	3 Months Ended
Leases	Mar. 31, 2020
Leases [Abstract]
Leases	Leases Revenue Recognition. Our leases provide for base rent payments and in addition may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term when we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining the lease term. In certain circumstances, some leases provide the tenant with the right to terminate if the legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its lease obligations; we have determined the fixed non-cancelable lease term of these leases to be the full term of the lease because we believe the occurrence of early terminations to be remote contingencies based on both our historical experience and our assessments of the likelihood of lease cancellation on a separate lease basis. We increased rental income to record revenue on a straight line basis by $5,583 and $6,794 for the three months ended March 31, 2020 and 2019, respectively. Rents receivable, excluding properties classified as held for sale, include $60,365 and $54,837 of straight line rent receivables at March 31, 2020 and December 31, 2019, respectively. We do not include in our measurement of our lease receivables certain variable payments, including payments determined by changes in the index or market-based indices after the inception of the lease, certain tenant reimbursements and other income until the specific events that trigger the variable payments have occurred. Such payments totaled $19,746 and $23,394 for the three months ended March 31, 2020 and 2019, respectively, of which tenant reimbursements totaled $18,622 and $22,124, respectively. As a result of the COVID-19 pandemic, some of our tenants have requested rent assistance. As of April 28, 2020, we have granted temporary rent assistance totaling $1,403 to 18 of our tenants who represent approximately 2.4% of our annualized rental income, as defined below, as of March 31, 2020, pursuant to a deferred payment plan whereby these tenants will be obligated to pay, in most cases, the deferred rent over a 12-month period beginning in September 2020. These deferred amounts did not impact our 2020 first quarter results. Right of Use Asset and Lease Liability. For leases where we are the lessee, we are required to record a right of use asset and lease liability for all leases with a term greater than 12 months. As of March 31, 2020, we had one lease that met these criteria where we are the lessee, which expires on January 31, 2021. We sublease a portion of the space, which sublease expires on January 31, 2021. The values of the right of use asset and related liability representing our future obligation under the lease arrangement for which we are the lessee were $1,660 and $1,687, respectively, as of March 31, 2020, and $2,149 and $2,179, respectively, as of December 31, 2019. The right of use asset and related lease liability are included within other assets, net and accounts payable and other liabilities, respectively, within our condensed consolidated balance sheets. Rent expense incurred under the lease, net of sublease revenue, was $446 and $434 for the three months ended March 31, 2020 and 2019, respectively.
Leases	Leases Revenue Recognition. Our leases provide for base rent payments and in addition may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term when we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining the lease term. In certain circumstances, some leases provide the tenant with the right to terminate if the legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its lease obligations; we have determined the fixed non-cancelable lease term of these leases to be the full term of the lease because we believe the occurrence of early terminations to be remote contingencies based on both our historical experience and our assessments of the likelihood of lease cancellation on a separate lease basis. We increased rental income to record revenue on a straight line basis by $5,583 and $6,794 for the three months ended March 31, 2020 and 2019, respectively. Rents receivable, excluding properties classified as held for sale, include $60,365 and $54,837 of straight line rent receivables at March 31, 2020 and December 31, 2019, respectively. We do not include in our measurement of our lease receivables certain variable payments, including payments determined by changes in the index or market-based indices after the inception of the lease, certain tenant reimbursements and other income until the specific events that trigger the variable payments have occurred. Such payments totaled $19,746 and $23,394 for the three months ended March 31, 2020 and 2019, respectively, of which tenant reimbursements totaled $18,622 and $22,124, respectively. As a result of the COVID-19 pandemic, some of our tenants have requested rent assistance. As of April 28, 2020, we have granted temporary rent assistance totaling $1,403 to 18 of our tenants who represent approximately 2.4% of our annualized rental income, as defined below, as of March 31, 2020, pursuant to a deferred payment plan whereby these tenants will be obligated to pay, in most cases, the deferred rent over a 12-month period beginning in September 2020. These deferred amounts did not impact our 2020 first quarter results. Right of Use Asset and Lease Liability. For leases where we are the lessee, we are required to record a right of use asset and lease liability for all leases with a term greater than 12 months. As of March 31, 2020, we had one lease that met these criteria where we are the lessee, which expires on January 31, 2021. We sublease a portion of the space, which sublease expires on January 31, 2021. The values of the right of use asset and related liability representing our future obligation under the lease arrangement for which we are the lessee were $1,660 and $1,687, respectively, as of March 31, 2020, and $2,149 and $2,179, respectively, as of December 31, 2019. The right of use asset and related lease liability are included within other assets, net and accounts payable and other liabilities, respectively, within our condensed consolidated balance sheets. Rent expense incurred under the lease, net of sublease revenue, was $446 and $434 for the three months ended March 31, 2020 and 2019, respectively.