Asset Acquisition Consideration Transferred

No definition available.

Name:	bfs_AssetAcquisitionConsiderationTransferred
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- Definition

Business Acquisition, Expenses Reimbursed

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Lessee, Operating Lease, Annual Increase In Rent, Percentage

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Incremental Borrowing Rate

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Option To Extend, Number Of Options

+ References

No definition available.

+ Details

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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- Definition

Area of land held.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

+ Details

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- Definition

The aggregate costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property.

+ References

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-Publisher FASB
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-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
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- Definition

For an unclassified balance sheet, the accumulated amortization, as of the reporting date, which represents the periodic charge to earnings of initial direct costs which have been deferred and are being allocated over the lease term in proportion to the recognition of rental income.

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- Definition

This element represents costs incurred by the lessor that are (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction. This element is net of accumulated amortization.

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- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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- Definition

Amount of interest expense on finance lease liability.

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+ Details

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

+ Details

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (b)
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+ Details

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- Definition

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

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-SubTopic 20
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-Paragraph 3
-Subparagraph (a)(1)
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- Definition

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

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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.

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-SubTopic 30
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-Paragraph 3
-Subparagraph (a)(3)
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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

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-Name Accounting Standards Codification
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-SubTopic 20
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-Subparagraph (b)
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+ Details

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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-Name Accounting Standards Codification
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-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
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+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Definition

Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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-Paragraph 1
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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

Number of shares of stock issued during the period pursuant to acquisitions.

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- Real Estate Transactions - Narrative (Details)		3 Months Ended
- Real Estate Transactions - Narrative (Details)	Nov. 05, 2019 USD ($) a shares	Mar. 31, 2021 USD ($) shares	Mar. 31, 2020 USD ($)	Mar. 05, 2021 USD ($) a	Dec. 31, 2020 USD ($)	Jan. 01, 2019 leaseExtensionOption
Real Estate [Line Items]
Assets placed in service		$ 2,220,504,000			$ 2,124,796,000
Lease renewal term						5 years
Right-of-use asset		701,200
Operating lease liability		724,100
Deferred leasing costs, net		26,169,000			26,872,000
Accumulated amortization deferred leasing cost		45,600,000			$ 44,500,000
Depreciation expense		11,500,000	$ 10,000,000.0
Repairs and maintenance expense		3,900,000	2,800,000
Impairment of real estate		$ 0
Number of partnership units issued in transaction (in shares) \| shares		1,416,071
Business acquisition, expenses reimbursed				$ 7,400,000
Remaining lease term		61 years
Operating Lease, annual increase in rent, percentage		1.50%
Operating lease, incremental borrowing rate		5.63%
Finance lease, right-of-use asset, amortization		$ 26,500
Finance lease, interest expense		$ 36,800
Contribution Agreement
Real Estate [Line Items]
Right-of-use asset				19,400,000
Operating lease liability				19,400,000
Number of partnership units issued in transaction (in shares) \| shares	1,416,071
Asset acquisition consideration transferred	$ 79,300,000
Business acquisition, transaction costs				$ 1,200,000
BF Saul Real Estate Investment Trust \| Contribution Agreement
Real Estate [Line Items]
Area of land \| a	10.3
Minimum
Real Estate [Line Items]
Operating lease term of contract		1 year
Maximum
Real Estate [Line Items]
Operating lease term of contract		15 years
Building \| Minimum
Real Estate [Line Items]
Estimated useful life		35 years
Building \| Maximum
Real Estate [Line Items]
Estimated useful life		50 years
Building Improvements \| Maximum
Real Estate [Line Items]
Estimated useful life		20 years
Lease Acquisition Costs
Real Estate [Line Items]
Amortization of intangible assets		$ 1,200,000	$ 1,300,000
The Waycroft and Ashbrook Marketplace
Real Estate [Line Items]
Assets placed in service		$ 8,700,000
Corporate Headquarters
Real Estate [Line Items]
Number of options to extend lease \| leaseExtensionOption						1
Twinbrook Metro Station \| BF Saul Real Estate Investment Trust \| Contribution Agreement
Real Estate [Line Items]
Area of land \| a				6.8
Twinbrook Metro Station Leasehold Interest \| BF Saul Real Estate Investment Trust \| Contribution Agreement
Real Estate [Line Items]
Area of land \| a				1.3