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Amount of impairment loss for asset. Includes, but is not limited to, tangible and intangible assets and goodwill.

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Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.

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Amount classified as accounts payable and accrued liabilities attributable to disposal group held for sale or disposed of.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount classified as deferred revenue attributable to disposal group held for sale or disposed of.

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Amount classified as intangible assets, excluding goodwill, attributable to disposal group held for sale or disposed of.

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Amount classified as other assets attributable to disposal group held for sale or disposed of.

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The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

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Reference 32: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
-SubTopic 20
-Name Accounting Standards Codification
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Reference 33: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
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Reference 34: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 205
-SubTopic 20
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-Paragraph 1
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-URI https://asc.fasb.org/1943274/2147483499/205-20-50-1

Reference 35: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
-SubTopic 20
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Real Estate - Dispositions (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Jun. 26, 2026	Mar. 31, 2026	Dec. 31, 2025	Jul. 29, 2026	Jun. 30, 2026	Feb. 25, 2026
Held-for-sale \| Harborview Plaza and 303 Tremont
Disposal Group, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Real Estate			$ 35,682
Disposal Group, Including Discontinued Operation, Land			18,854
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net			272
Disposal Group, Including Discontinued Operation, Deferred Rent Receivables			2,082
Disposal Group, Including Discontinued Operation, Intangible Assets			138
Disposal Group, Including Discontinued Operation, Other Assets			4,461
Disposal Group, Including Discontinued Operation, Assets			61,489
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities			1,769
Disposal Group, Including Discontinued Operation, Deferred Revenue			266
Disposal Group, Including Discontinued Operations, Intangible Liabilities			49
Disposal Group, Including Discontinued Operation, Other Liabilities			765
Disposal Group, Including Discontinued Operation, Liabilities			2,849
Intangible liabilities, accumulated amortization			140
Intangible assets, accumulated amortization			682
Disposal Group, Including Discontinued Operation, Real Estate Accumulated Depreciation			15,341
Held-for-sale \| One Eleven Congress
Disposal Group, Including Discontinued Operations [Line Items]
Asset, Impairment Loss		$ 36,600
Held-for-sale \| One Eleven Congress and 303 Tremont
Disposal Group, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Real Estate					$ 192,230
Disposal Group, Including Discontinued Operation, Land					18,854
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net					612
Disposal Group, Including Discontinued Operation, Deferred Rent Receivables					6,355
Disposal Group, Including Discontinued Operation, Intangible Assets					280
Disposal Group, Including Discontinued Operation, Other Assets					5,255
Disposal Group, Including Discontinued Operation, Assets					223,586
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities					4,149
Disposal Group, Including Discontinued Operation, Deferred Revenue					1,295
Disposal Group, Including Discontinued Operations, Intangible Liabilities					163
Disposal Group, Including Discontinued Operation, Other Liabilities					2,129
Disposal Group, Including Discontinued Operation, Liabilities					7,736
Intangible liabilities, accumulated amortization					1,291
Intangible assets, accumulated amortization					3,576
Disposal Group, Including Discontinued Operation, Real Estate Accumulated Depreciation					$ 76,070
Sold \| Research Park
Disposal Group, Including Discontinued Operations [Line Items]
Sales price	$ 42,000
Gains (Losses) on Sales of Investment Real Estate	$ 9,200
Sold \| One Eleven Congress \| Subsequent Event
Disposal Group, Including Discontinued Operations [Line Items]
Sales price				$ 208,000
Sold \| Harborview Plaza
Disposal Group, Including Discontinued Operations [Line Items]
Sales price						$ 39,500
Asset, Impairment Loss			$ 13,300