Amount of other operating lease income.

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Amount of lease payments to be received by lessor for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919396-209981

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Amount of lease payments to be received by lessor in fifth fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor in fourth year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor in next fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor after fifth fiscal year following latest statement of financial position date for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor in third fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of lease payments to be received by lessor in second fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
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- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of operating lease income from lease payments paid and payable to lessor. Excludes variable lease payments not included in measurement of lease receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of operating lease income from variable lease payments paid and payable to lessor, excluding amount included in measurement of lease receivable.

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- Definition

Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
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Future rental payments receivable within one year of the balance sheet date under an operating lease.

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Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the third year from the balance sheet date under an operating lease.

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Future rental payments receivable within the second year from the balance sheet date under an operating lease.

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Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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Leases - Summary of Leases as Lessor (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Lease, Lease Income
Lease income related to fixed lease payments									$ 362,866	$ 361,909	$ 406,923
Lease income related to variable lease payments									116,928	116,141	128,968
Other									1,892	4,447	2,248
Lease income	$ 120,817	$ 119,717	$ 118,449	$ 122,703	$ 119,354	$ 119,137	$ 119,164	$ 124,842	481,686	482,497	$ 538,139
Lessor, Operating Lease, Payments, Fiscal Year Maturity
Lease payments, 2020	363,222								363,222
Lease payments, 2021	327,131								327,131
Lease payments, 2022	279,283								279,283
Lease payments, 2023	230,164								230,164
Lease payments, 2024	175,781								175,781
Lease payments, thereafter	556,877								556,877
Total lease payments	$ 1,932,458								$ 1,932,458
Operating Leases, Future Minimum Payments Receivable
Lease payments, 2019					351,145					351,145
Lease payments, 2020					314,081					314,081
Lease payments, 2021					274,135					274,135
Lease payments, 2022					227,417					227,417
Lease payments, 2023					180,199					180,199
Lease payments, thereafter					569,758					569,758
Total lease payments					$ 1,916,735					$ 1,916,735
Minimum
Lessor, Lease, Description [Line Items]
Remaining lease term	1 year				1 year				1 year	1 year
Maximum
Lessor, Lease, Description [Line Items]
Remaining lease term	63 years				64 years				63 years	64 years