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Variable Interest Entities (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 USD ($) ft² | Dec. 31, 2019 USD ($) ft² | Jun. 30, 2022 USD ($) ft² | Jun. 30, 2021 USD ($)
Variable Interest Entities [Line Items] |  |  |  |
Rentable square feet of office property under development (in sq feet) | ft² |  |  | 600,000 |
Assets and liabilities of consolidated variable interest entity [Abstract] |  |  |  |
Net real estate assets | $ 5,032,033,000 |  | $ 4,943,451,000 |
Cash and cash equivalents | 23,152,000 |  | 25,045,000 | $ 6,535,000
Accounts receivable | 14,002,000 |  | 17,938,000 |
Accrued straight-line rents receivable | 268,324,000 |  | 277,086,000 |
Deferred leasing costs, net | 258,902,000 |  | 243,624,000 |
Prepaid expense and other assets, net | 78,551,000 |  | 112,937,000 |
Accounts payable, accrued expenses and other liabilities | $ 294,976,000 |  | 271,716,000 |
Variable Interest Entity, Non Primary Beneficiary [Member] |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Rentable square feet of office property under development (in sq feet) | ft² | 135,000 |  |  |
Total anticipated development costs | $ 79,000,000 |  |  |
Contribution of cash to acquire interest in joint venture | $ 13,300,000 |  |  |
Interest in joint venture (in hundredths) | 50.00% |  |  |
Advance to affiliate | $ 49,600,000 |  |  |
Amount of loan funded to affiliate |  |  | 0 |
Term of optional extension | 1 year |  |  |
Risk of loss limited to carrying value |  |  | 13,600,000 |
Variable Interest Entity, Non Primary Beneficiary [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Variable interest rate basis | LIBOR |  |  |
Interest rate, basis spread (in hundredths) | 3.00% |  |  |
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Rentable square feet of office property under development (in sq feet) | ft² |  | 150,000 |  |
Total anticipated development costs |  | $ 71,300,000 |  |
Contribution of cash to acquire interest in joint venture |  | $ 20,000,000 |  |
Interest in joint venture (in hundredths) |  | 80.00% |  |
Advance to affiliate |  | $ 46,300,000 |  |
Amount of loan funded to affiliate |  |  | 33,200,000 |
Assets and liabilities of consolidated variable interest entity [Abstract] |  |  |  |
Net real estate assets | $ 53,191,000 |  | 58,645,000 |
Cash and cash equivalents | 389,000 |  | 1,084,000 |
Accounts receivable | 0 |  | 188,000 |
Accrued straight-line rents receivable | 121,000 |  | 182,000 |
Deferred leasing costs, net | 1,519,000 |  | 1,588,000 |
Prepaid expense and other assets, net | 163,000 |  | 284,000 |
Accounts payable, accrued expenses and other liabilities | 646,000 |  | $ 2,749,000 |
Variable Interest Entity, Primary Beneficiary [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Variable interest rate basis |  | LIBOR |  |
Interest rate, basis spread (in hundredths) |  | 2.50% |  |
Variable Interest Entity, Partner Interest [Member] |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Partner's interest in joint venture (in hundredths) |  |  | 20.00% |
Variable Interest Entity, Partner Interest [Member] | Variable Interest Entity, Non Primary Beneficiary [Member] |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Contribution of cash to acquire interest in joint venture | 5,600,000 |  |  |
Partner's contribution of property to acquire interest in joint venture | $ 7,700,000 |  |  |
Partner's interest in joint venture (in hundredths) | 50.00% |  |  |
Variable Interest Entity, Partner Interest [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |
Variable Interest Entities [Line Items] |  |  |  |
Partner's contribution of property to acquire interest in joint venture |  | $ 5,000,000 |  |
Partner's interest in joint venture (in hundredths) |  | 20.00% |  |

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- Definition As of the balance sheet date: carrying value of obligations incurred and payable pertaining to goods and services received from vendors; and for statutory costs, are incurred in connection with contractual obligations, or accumulate over time and for which invoices haven't been received or rendered; and carrying amount of liabilities not otherwise specified in the taxonomy. Also serves as the sum of liabilities not individually reported in the financial statements, or not separately disclosed in notes. + References No definition available. + Details
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