Commitments and Contingencies - Minimum Commitment Under Ground Leases (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019	Jan. 01, 2019
Minimum commitment under our ground leases
Remaining 2020	$ 2,821
2021	5,641
2022	5,642
2023	5,662
2024	5,662
2025	5,662
Thereafter	280,723
Total undiscounted cash flows	311,813
Present value discount	(213,720)
Ground lease liabilities	$ 98,093	$ 98,400	$ 87,409
Period after which ground lease rentals are adjusted based on fair market value and the Consumer Price Index	5 years
Annual ground lease rental obligations limit	$ 1,000
Average annual percentage rent for previous five years (percent)	50.00%
Previous period included in average annual rent percentage for five-year increases	5 years
Duration of ground lease prior to increase ten years	10 years
Average annual percentage rent for previous ten years (percent)	60.00%
Previous period included in average annual rent percentage for ten-year increases	3 years
Percentage rent increase every five years	5.00%

Maximum annual ground lease rental obligations.

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- Definition

Ground Lease, Minimum Rent Increase, Five Years, Percentage of Annual Percentage Rent

+ References

No definition available.

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- Definition

Ground Lease, Minimum Rent Increase, Percentage of Annual Percentage Rent for the previous 5 years

+ References

No definition available.

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- Definition

Ground Lease, Minimum Rent Increase, Percentage of Annual Percentage Rent Two

+ References

No definition available.

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- Definition

Ground Lease, Minimum Rent Increase, Period of Increase Two

+ References

No definition available.

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- Definition

Ground Lease, Previous Period Included in Average Annual Rent Percentage

+ References

No definition available.

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- Definition

Ground Lease, Previous Period Included in Average Annual Rent Percentage, Rent Two

+ References

No definition available.

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- Definition

Period for Ground lease rentals adjustment.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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- Definition

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

+ References

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- References

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

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