Leases - Tenant Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases
Percentage of portfolio leased	99.40%
Weighted average remaining lease term	9 years 9 months 18 days
Annualized base rent derived from tenants (as a percent)	67.20%
Option to extend lease	true
Lease, practical expedients	true
Lease Income
Total lease payments	$ 80,200	$ 58,096
Less: Operating cost reimbursements and percentage rents	8,976	6,893
Total non-variable lease payments	71,224	$ 51,203
Future non-variable lease payments
2021 (remaining)	216,360
2022	286,948
2023	282,249
2024	271,968
2025	261,085
Thereafter	1,575,641
Lease payments receivable	$ 2,894,251