XML 45 R29.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Real Estate (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Real Estate [Abstract] |
Schedule of Construction in Progress | The following table shows the components of construction in progress.
|  | December 31,
(in thousands) |  | 2023 |  | 2022
Twinbrook Quarter |  | $ | 355,113 |  |  | $ | 227,672 |
Hampden House |  | 142,240 |  |  | 80,704 |
Other |  | 17,200 |  |  | 13,850 |
Total |  | $ | 514,553 |  |  | $ | 322,226 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | As of December 31, 2023, scheduled amortization of intangible assets and deferred income related to in place leases is as follows:
(In thousands) | Lease acquisition costs |  | Above market leases |  | Below market leases
2024 | $ | 198 |  |  | $ | 33 |  |  | $ | 878 |
2025 | 153 |  |  | 33 |  |  | 601 |
2026 | 131 |  |  | 33 |  |  | 508 |
2027 | 119 |  |  | 33 |  |  | 507 |
2028 | 117 |  |  | 33 |  |  | 507 |
Thereafter | 476 |  |  | 211 |  |  | 1,730 |
Total | $ | 1,194 |  |  | $ | 376 |  |  | $ | 4,731 |

X
- Definition Schedule of Construction in Progress [Table Text Block] + References No definition available. + Details
Name: | bfs_ScheduleofConstructioninProgressTableTextBlock
Namespace Prefix: | bfs_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RealEstateAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
Name: | us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration