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Combined Guarantor Subsidiaries - Revenues - Disaggregation of Revenue (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): |  | $ 3,509,000 | $ 5,865,000 | $ 8,733,000 | $ 11,405,000
Total revenues | [1] | 124,211,000 | 193,377,000 | 291,785,000 | 391,407,000
Malls |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Total revenues | [1] | 112,002,000 | 170,976,000 | 265,353,000 | 354,840,000
All Other |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Total revenues | [1],[2] | 12,209,000 | 22,401,000 | 26,432,000 | 36,567,000
Operating expense reimbursements |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): |  | 2,103,000 | 2,061,000 | 4,492,000 | 4,204,000
Operating expense reimbursements | Malls |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): |  | 2,024,000 | 1,892,000 | 4,345,000 | 4,084,000
Marketing revenues |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): |  | 351,000 | 1,218,000 | 1,094,000 | 2,092,000
Other revenues |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Total revenues |  | 480,000 | 2,119,000 | 1,657,000 | 3,629,000
Guarantor Subsidiaries |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Rental revenues | [3] | 46,849,000 | 67,316,000 | 110,680,000 | 138,588,000
Total revenues | [4] | 47,983,000 | 68,868,000 | 113,410,000 | 141,859,000
Guarantor Subsidiaries | Malls |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Total revenues |  | 45,941,000 | 66,403,000 | 108,985,000 | 136,803,000
Guarantor Subsidiaries | All Other |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Total revenues | [5] | 2,042,000 | 2,465,000 | 4,425,000 | 5,056,000
Guarantor Subsidiaries | Operating expense reimbursements |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): | [6] | 882,000 | 693,000 | 1,953,000 | 1,844,000
Guarantor Subsidiaries | Operating expense reimbursements | Malls |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): |  |  | 688,000 | 1,928,000 | 1,839,000
Guarantor Subsidiaries | Operating expense reimbursements | All Other |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): |  |  | 5,000 | 25,000 | 5,000
Guarantor Subsidiaries | Marketing revenues |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): | [7] | 196,000 | 549,000 | 586,000 | 986,000
Guarantor Subsidiaries | Total Revenue |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Revenues from contracts with customers (ASC 606): |  | 1,078,000 | 1,242,000 | 2,539,000 | 2,830,000
Guarantor Subsidiaries | Other revenues |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |
Other revenues |  | $ 56,000 | $ 310,000 | $ 191,000 | $ 441,000
[1] | Management, development and leasing fees are included in the All Other category. See Note 3 for information on the Company's revenues disaggregated by revenue source for each of the above segments.
[2] | The All Other category includes associated centers, community centers, mortgage and other notes receivable, office buildings, self-storage facilities, corporate-level debt and the Management Company.
[3] | Revenues from leases that commenced subsequent to December 31, 2018 are accounted for in accordance with ASC 842, Leases , whereas all leases existing prior to that date are accounted for in accordance with ASC 840.
[4] | Sales taxes are excluded from revenues.
[5] | The All Other category includes associated centers and notes receivable.
[6] | Operating expense reimbursements solely relate to the Malls segment for the three months ended June 30, 2020 and includes $688 in the Malls segment and $5 in the All Other segment for the three months ended June 30, 2019. Includes $1,928 in the Malls segment and $25 in the All Other segment for the six months ended June 30, 2020 and includes $1,839 in the Malls segment and $5 in the All Other segment for the six months ended June 30, 2019.
[7] | Marketing revenues solely relate to the Malls segment for all periods presented.

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