XML 73 R62.htm IDEA: XBRL DOCUMENT
v3.22.4

Distributions - Summary of Distributions Paid Including Activity in Plan as well as Limited Partnership Units Issued from Reinvestment of Unit Distributions (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Dividends [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stockholders |  |  |  |  |  |  |  |  |  |  |  |  | $ 11,194 | $ 11,194 | $ 11,194
Common Stockholders |  |  |  |  |  |  |  |  |  |  |  |  | 55,523 | 50,963 | 49,383
Limited Partnership Unitholders |  |  |  |  |  |  |  |  |  |  |  |  | $ 21,548 | $ 17,821 | $ 16,751
Common stock shares issued |  |  |  |  |  |  |  |  |  |  |  |  | 143,957,000 | 293,615,000 | 228,498,000
Limited Partnership Units Issued (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 26,659,000 | 61,009,000 | 51,579,000
4th Quarter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stockholders | $ 2,798 |  |  |  | $ 2,798 |  |  |  | $ 2,798 |  |  |  |  |  |
Common Stockholders | 14,159 |  |  |  | 13,037 |  |  |  | 12,371 |  |  |  |  |  |
Limited Partnership Unitholders | $ 5,486 |  |  |  | $ 4,702 |  |  |  | $ 4,195 |  |  |  |  |  |
Common stock shares issued | 13,698,000 |  |  |  | 63,970,000 |  |  |  | 117,368,000 |  |  |  |  |  |
Discounted Share Price (in usd per share) | $ 39.70 |  |  |  | $ 45.46 |  |  |  | $ 24.08 |  |  |  | $ 39.70 | $ 45.46 | $ 24.08
Limited Partnership Units Issued (in shares) | 0 |  |  |  | 13,697,000 |  |  |  | 23,370,000 |  |  |  |  |  |
Average Unit Price (in usd per share) | $ 0 |  |  |  | $ 45.95 |  |  |  | $ 24.35 |  |  |  | $ 0 | $ 45.95 | $ 24.35
3rd Quarter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stockholders |  | $ 2,799 |  |  |  | $ 2,799 |  |  |  | $ 2,799 |  |  |  |  |
Common Stockholders |  | 14,156 |  |  |  | 12,999 |  |  |  | 12,373 |  |  |  |  |
Limited Partnership Unitholders |  | $ 5,486 |  |  |  | $ 4,694 |  |  |  | $ 4,188 |  |  |  |  |
Common stock shares issued |  | 10,577,000 |  |  |  | 65,171,000 |  |  |  | 14,525,000 |  |  |  |  |
Discounted Share Price (in usd per share) |  | $ 50.80 |  |  |  | $ 44.44 |  |  |  | $ 28.98 |  |  |  |  |
Limited Partnership Units Issued (in shares) |  | 0 |  |  |  | 13,841,000 |  |  |  | 13,108,000 |  |  |  |  |
Average Unit Price (in usd per share) |  | $ 0 |  |  |  | $ 44.92 |  |  |  | $ 29.47 |  |  |  |  |
2nd Quarter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stockholders |  |  | $ 2,798 |  |  |  | $ 2,798 |  |  |  | $ 2,798 |  |  |  |
Common Stockholders |  |  | 13,625 |  |  |  | 12,488 |  |  |  | 12,364 |  |  |  |
Limited Partnership Unitholders |  |  | $ 5,292 |  |  |  | $ 4,218 |  |  |  | $ 4,188 |  |  |  |
Common stock shares issued |  |  | 57,819,000 |  |  |  | 68,206,000 |  |  |  | 12,627,000 |  |  |  |
Discounted Share Price (in usd per share) |  |  | $ 51.61 |  |  |  | $ 41.87 |  |  |  | $ 32.22 |  |  |  |
Limited Partnership Units Issued (in shares) |  |  | 12,955,000 |  |  |  | 13,978,000 |  |  |  | 0 |  |  |  |
Average Unit Price (in usd per share) |  |  | $ 51.55 |  |  |  | $ 42.33 |  |  |  | $ 0 |  |  |  |
1st Quarter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stockholders |  |  |  | $ 2,799 |  |  |  | $ 2,799 |  |  |  | $ 2,799 |  |  |
Common Stockholders |  |  |  | 13,583 |  |  |  | 12,439 |  |  |  | 12,275 |  |  |
Limited Partnership Unitholders |  |  |  | $ 5,284 |  |  |  | $ 4,207 |  |  |  | $ 4,180 |  |  |
Common stock shares issued |  |  |  | 61,863,000 |  |  |  | 96,268,000 |  |  |  | 83,978,000 |  |  |
Discounted Share Price (in usd per share) |  |  |  | $ 47.66 |  |  |  | $ 29.50 |  |  |  | $ 48.59 |  |  |
Limited Partnership Units Issued (in shares) |  |  |  | 13,704,000 |  |  |  | 19,493,000 |  |  |  | 15,101,000 |  |  |
Average Unit Price (in usd per share) |  |  |  | $ 48.16 |  |  |  | $ 29.83 |  |  |  | $ 49.40 |  |  |

X
- Definition Dividends [Line Items] + References No definition available. + Details
Name: | bfs_DividendsLineItems
Namespace Prefix: | bfs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Dividends Paid To Noncontrolling Interests + References No definition available. + Details
Name: | bfs_DividendsPaidToNoncontrollingInterests
Namespace Prefix: | bfs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Dividends Reinvested in Common Stock, Price Per Share + References No definition available. + Details
Name: | bfs_DividendsReinvestedInCommonStockPricePerShare
Namespace Prefix: | bfs_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Limited Partner's Dividend Reinvestment Plan, Average Unit Price + References No definition available. + Details
Name: | bfs_LimitedPartnersDividendReinvestmentPlanAverageUnitPrice
Namespace Prefix: | bfs_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Limited Partner's Units Issued During Period, Units, Dividend Reinvestment Plan + References No definition available. + Details
Name: | bfs_LimitedPartnersUnitsIssuedDuringPeriodUnitsDividendReinvestmentPlan
Namespace Prefix: | bfs_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsOfDividendsCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DividendsAxis=bfs_DividendPaymentOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=bfs_DividendPaymentTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=bfs_DividendPaymentThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=bfs_DividendPaymentFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |