Leases - Future Minimum Lease Payments on Ground Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
2020	$ 1,518
2021	1,518
2022	1,518
2023	1,518
2024	1,518
Thereafter	66,780
Total undiscounted lease payments	74,370
Present value discount	45,063
Ground lease liabilities	$ 29,307
2019		$ 1,518
2020		1,518
2021		1,518
2022		1,518
2023		1,518
Thereafter		68,298
Total		$ 75,888

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Amount of lessee's undiscounted obligation for lease payments for operating lease.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in next fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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