Disposal Group, Including Discontinued Operation, Sales Transaction Costs

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- Definition

Percentage of ownership sold during the period.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(9)(a))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 360
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=117337411&loc=d3e23528-158515

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(7)(c))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(14)(d))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 360
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=117337397&loc=d3e23439-158514

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(a))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 360
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=117337397&loc=d3e23415-158514

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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Net rentable area for properties owned.

+ References

No definition available.

+ Details

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- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period.

+ 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 (c)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585

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- References

No definition available.

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ACQUISITIONS AND DISPOSITIONS - Disposals and Impairment (Details)	1 Months Ended	3 Months Ended			6 Months Ended
	Jul. 31, 2019 property	Jun. 30, 2020 USD ($) property	Jun. 30, 2019 USD ($) ft²	Mar. 31, 2019 USD ($)	Jun. 30, 2020 USD ($) property	Jun. 30, 2019 USD ($) ft²	Dec. 31, 2019 property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership sold, percentage						100.00%
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Sales Price					$ 0	$ 765,116,000
Gain on sale of real estate		$ 0	$ 55,221,000		0	432,802,000
Impairment of real estate		$ 0	$ 2,800,000	$ 66,200,000	$ 0	69,000,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Sales Price						809,996,000
Transaction Costs						14,606,000
Gain on sale of real estate						$ 432,802,000
March Oakland Properties, Oakland, CA \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Square Feet \| ft²			975,596			975,596
Sales Price						$ 512,016,000
Transaction Costs						8,971,000
Gain on sale of real estate						$ 289,779,000
830 1st Street, Washington, D.C. \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Square Feet \| ft²			247,337			247,337
Sales Price						$ 116,550,000
Transaction Costs						2,438,000
Gain on sale of real estate						$ 45,710,000
260 Townsend Street, San Francisco, CA \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Square Feet \| ft²			66,682			66,682
Sales Price						$ 66,000,000
Transaction Costs						2,539,000
Gain on sale of real estate						$ 42,092,000
1333 Broadway, Oakland, CA \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Square Feet \| ft²			254,523			254,523
Sales Price						$ 115,430,000
Transaction Costs						658,000
Gain on sale of real estate						$ 55,221,000
Two Office Properties and One Developmental Site, Washington, D.C. \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership sold, percentage	100.00%
Office properties
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Number of real estate properties sold \| property		8			8		8
Office properties \| Two Office Properties and One Developmental Site, Washington, D.C. \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Number of real estate properties sold \| property	2
Development site
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Number of real estate properties sold \| property		1			1		1
Development site \| Two Office Properties and One Developmental Site, Washington, D.C. \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Proceeds from Sale of Real Estate Held-for-investment [Abstract]
Number of real estate properties sold \| property	1