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Subsequent Events (Details) $ / shares in Units, $ in Millions		1 Months Ended	3 Months Ended
	Oct. 07, 2022 $ / shares	Dec. 31, 2021 $ / shares	Sep. 30, 2022 $ / shares	Jun. 30, 2022 $ / shares	Mar. 31, 2022 $ / shares	Sep. 30, 2021 $ / shares	Jun. 30, 2021 $ / shares	Mar. 31, 2021 $ / shares	Aug. 31, 2022 property	Feb. 10, 2022 USD ($)	Jan. 10, 2022 USD ($)	Sep. 23, 2021 property	May 27, 2021 property
Subsequent Events
Cash dividend declared per share (in dollars per share) | $ / shares		$ 0.32	$ 0.01	$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.09
Subsequent event
Subsequent Events
Cash dividend declared per share (in dollars per share) | $ / shares	$ 0.01
Office properties in Broomfield, Colorado
Subsequent Events
Number of properties sold									2
Office Properties in Atlanta, Georgia
Subsequent Events
Number of properties sold													3
Office properties in Chesterfield, MO
Subsequent Events
Number of properties sold												2
BofA Revolver
Subsequent Events
Borrowing capacity | $										$ 237.5	$ 217.5
Increase to maximum borrowing capacity by exercising an accordion feature | $										$ 20.0

X

- Definition

The increase to maximum borrowing capacity under the credit facility upon exercise of the accordion feature which is subject to receipt of lender commitments and satisfaction of certain customary conditions.

+ References

No definition available.

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- Definition

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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