Leases - Schedule of Future Lease Payments Due Under Ground Leases (Detail) $ in Thousands	Dec. 31, 2019 USD ($)
Operating Leases
2020	$ 3,916
2021	3,977
2022	4,088
2023	4,127
2024	4,180
Thereafter	603,041
Total undiscounted future lease payments	623,329
Difference between undiscounted cash flows and discounted cash flows	(540,449)
Total lease liability	82,880
Financing Leases
2020	2,991
2021	3,081
2022	3,174
2023	3,269
2024	3,367
Thereafter	330,544
Total undiscounted future lease payments	346,426
Difference between undiscounted cash flows and discounted cash flows	(289,668)
Total lease liability	$ 56,758