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v3.20.2

Related Parties - Additional Information (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 27, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Related Party Transaction [Line Items] |  |  |  |  |  |
Fee and other income |  | $ 11,355,000 | $ 10,138,000 | $ 27,045,000 | $ 26,485,000 |
Accounts and other receivables, net |  | 15,289,000 |  | 15,289,000 |  | $ 19,231,000
Property management, asset management, leasing and other related services fee income |  | 9,153,000 | 7,159,000 | 21,692,000 | 17,371,000 |
Transaction related costs |  | 81,000 | 786,000 | 542,000 | 1,704,000 |
Accounts payable and accrued expenses |  | $ 109,228,000 |  | 109,228,000 |  | 117,356,000
Due from Affiliates |  |  |  |  | 181,000,000 |
Repayment of note receivables |  |  |  | $ 36,918,000 | 181,000,000 |
Fund X [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Due from Affiliates |  |  |  |  |  | 36,918,000
Repayment of note receivables | $ 36,918,000 |  |  |  |  |
Repayment of accrued interest | $ 349,000 |  |  |  |  |
Note receivables basis spread on variable rate |  | 2.20% |  | 2.20% |  |
712 Fifth Avenue [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Equity method paramount ownership percentage |  | 50.00% |  | 50.00% |  |
CNBB-RDF Holdings Otto Family [Member] | Management Agreements [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Fee and other income |  | $ 260,000 | 212,000 | $ 967,000 | 632,000 |
Accounts and other receivables, net |  | 0 |  | 0 |  | 0
Unconsolidated Joint Ventures and Real Estate Funds [Member] | Management Agreements [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Accounts and other receivables, net |  | 5,060,000 |  | 5,060,000 |  | 2,734,000
Property management, asset management, leasing and other related services fee income |  | $ 6,841,000 | 4,880,000 | $ 17,550,000 | 12,938,000 |
Hamburg Trust Consulting GMBH ("HTC") [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Mark-up cost percentage |  | 10.00% |  | 10.00% |  |
Transaction related costs |  | $ 124,000 | 72,000 | $ 389,000 | 758,000 |
Accounts payable and accrued expenses |  | $ 124,000 |  | $ 124,000 |  | $ 38,000
Hamburg Trust Consulting GMBH ("HTC") [Member] | Chairman, Chief Executive Officer and President [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Percentage of ownership |  | 100.00% |  | 100.00% |  |
Mannheim Trust [Member] | Board of Director [Member] | 712 Fifth Avenue [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Equity method paramount ownership percentage |  | 50.00% |  | 50.00% |  |
Lease rental income |  | $ 91,000 | 90,000 | $ 272,000 | 271,000 |
Kramer Design Services [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Accounts payable and accrued expenses |  | 19,000 |  | 19,000 |  |
Development expenses |  | $ 47,000 |  | $ 187,000 |  |
Kramer Design Services [Member] | 712 Fifth Avenue [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Equity method paramount ownership percentage |  | 50.00% |  | 50.00% |  |
Expense recognized |  |  | $ 183,000 | $ 29,000 | $ 286,000 |

X
- Definition Reflects the revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations. Additionally, reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. + References No definition available. + Details
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- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(1),(5)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(5)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Business development involves the development of products and services, their delivery, design and their implementation. Business development includes a number of techniques designed to grow an economic enterprise. Such techniques include, but are not limited to, assessments of marketing opportunities and target markets, intelligence gathering on customers and competitors, generating leads for possible sales, follow-up sales activity, formal proposal writing and business model design. Business development involves evaluating a business and then realizing its full potential, using such tools as marketing, sales, information management and customer service. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(6)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition The percentage points (also referred to as 'margin') added to the reference rate as stated in the loan agreement and used to compute the variable rate on the loans receivable. For instance, the loan agreement might state that the interest rate the borrower is obligated to pay is the London Interbank Offered Rate (LIBOR) plus three quarters (3/4) of a percentage point adjusted quarterly (each three months). LIBOR in this example is the index or reference rate, 3/4 percentage point is the margin, the reference rate plus the margin is the fully indexed rate. This element would be used to report separately the margin. + References No definition available. + Details
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- Definition The cash inflow from a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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