Commitments and Contingencies - Narrative (Details) |
6 Months Ended | |
|---|---|---|
|
Jun. 30, 2019
USD ($)
tenant
claim
ground_lease
|
Dec. 31, 2018
USD ($)
|
|
| Commitments And Contingencies Disclosure [Abstract] | ||
| Contingently liable amount of debt owed by tenant | $ 5,700,000 | $ 5,700,000 |
| Number of tenants indemnified by | tenant | 1 | |
| Accruals made for environmental remediation | $ 0 | |
| Outstanding claims | claim | 0 | |
| Total commitments | $ 71,400,000 | |
| Total commitments relating to future acquisitions | 38,700,000 | |
| Commitments to purchase capital assets within one year expected to be funded within one year | $ 50,700,000 | |
| Operating lease renewal option | two | |
| Operating lease renewal term | 5 years | |
| Number of long-term non-cancelable ground leases | ground_lease | 4 | |
| Operating lease, weighted average remaining lease term | 8 years 1 month 6 days | |
| Operating lease, weighted average discount rate | 4.26% | |
| Incentive to lessee | $ 1,700,000 | |
| Operating lease, right-of-use assets | $ 5,900,000 |