Leases - Summary of Quantitative Disclosures for Lessees (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Lease cost:
Interest on lease liabilities (capitalized)	$ 225
Total lease cost	31,549
Cash paid for amounts included in the measurement of lease liabilities:
Investing cash flows from finance leases (capitalized)	34,922
ROU assets obtained in exchange for new finance lease liabilities	$ 23,201
Weighted-average remaining lease term – finance leases	19 years 8 months 12 days
Weighted-average discount rate – finance leases	3.00%
Corporate Office Leases [Member]
Lease cost:
Operating lease cost	$ 3,937
Variable lease cost	1,489
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from Operating leases	5,494
ROU assets obtained in exchange for new operating lease liabilities	$ 44,298
Weighted-average remaining lease term – operating leases	18 years 1 month 6 days
Weighted-average discount rate – operating leases	3.20%
Ground Leases [Member]
Lease cost:
Operating lease cost	$ 22,198
Variable lease cost	3,700
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from Operating leases	16,837
ROU assets obtained in exchange for new operating lease liabilities	$ 422,018
Weighted-average remaining lease term – operating leases	56 years 2 months 12 days
Weighted-average discount rate – operating leases	5.00%