Lessor, Operating Lease, Termination Option, Exercisable though Date

No definition available.

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- Definition

Percentage Of Leased Asset Exercisable In Current Fiscal Period

+ References

No definition available.

+ Details

Name:	psb_PercentageOfLeasedAssetExercisableInCurrentFiscalPeriod
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- Definition

Percentage Of The Leased Asset Subjected To Termination Options.

+ References

No definition available.

+ Details

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- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919359-209981

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Amount of operating lease income from variable lease payments paid and payable to lessor, excluding amount included in measurement of lease receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 6A
-URI http://asc.fasb.org/extlink&oid=118952077&loc=SL77927221-108306

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919372-209981

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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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Balance Type:	na
Period Type:	duration

- Details

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- Details

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Leasing Activity (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating Leased Assets [Line Items]
Rental income, variable lease payments	$ 24.4	$ 24.0	$ 72.2	$ 73.0
Percentage of leased asset subjected to termination options	3.00%		3.00%
Percentage of leased asset exercisable in period	1.70%		1.70%
Termination option, exercisable through date			Dec. 31, 2020
Minimum [Member]
Operating Leased Assets [Line Items]
Non-cancelable lease term	1 year		1 year
Maximum [Member]
Operating Leased Assets [Line Items]
Non-cancelable lease term	10 years		10 years