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Business Segments (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |
Revenue | $ 52,088 us-gaap_Revenues | $ 52,947 us-gaap_Revenues |
Expenses | (13,763)us-gaap_CostOfRealEstateRevenue | (13,241)us-gaap_CostOfRealEstateRevenue |
Income from real estate | 38,325 us-gaap_GrossProfit | 39,706 us-gaap_GrossProfit |
Interest expense and amortization of deferred debt costs | (11,406)bfs_NoncashInterestExpenseAccretionAndAmortizationOfDeferredFinanceFees | (11,467)bfs_NoncashInterestExpenseAccretionAndAmortizationOfDeferredFinanceFees |
General and administrative | (3,771)us-gaap_GeneralAndAdministrativeExpense | (4,680)us-gaap_GeneralAndAdministrativeExpense |
Acquisition related costs | (21)us-gaap_BusinessCombinationAcquisitionRelatedCosts | (163)us-gaap_BusinessCombinationAcquisitionRelatedCosts |
Predevelopment expenses |  | (503)us-gaap_OtherOperatingIncomeExpenseNet |
Subtotal | 23,127 bfs_SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization | 22,893 bfs_SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization |
Depreciation and amortization of deferred leasing costs | (10,440)bfs_DepreciationDepletionandAmortizationIncludingDiscontinuedOperations | (10,180)bfs_DepreciationDepletionandAmortizationIncludingDiscontinuedOperations |
Change in fair value of derivatives | (6)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | (2)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet |
Net Income | 12,681 us-gaap_ProfitLoss | 12,711 us-gaap_ProfitLoss |
Capital investment | 10,624 us-gaap_PaymentsToAcquireProductiveAssets | 13,888 us-gaap_PaymentsToAcquireProductiveAssets |
Total assets | 1,270,611 us-gaap_Assets | 1,204,597 us-gaap_Assets | 1,266,987 us-gaap_Assets
Shopping Centers |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 39,364 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 39,819 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Expenses | (9,536)us-gaap_CostOfRealEstateRevenue / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | (9,490)us-gaap_CostOfRealEstateRevenue / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Income from real estate | 29,828 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 30,329 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Interest expense and amortization of deferred debt costs | 0 bfs_NoncashInterestExpenseAccretionAndAmortizationOfDeferredFinanceFees / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 0 bfs_NoncashInterestExpenseAccretionAndAmortizationOfDeferredFinanceFees / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
General and administrative | 0 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 0 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Acquisition related costs | (21)us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | (163)us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Predevelopment expenses |  | 0 us-gaap_OtherOperatingIncomeExpenseNet / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Subtotal | 29,807 bfs_SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 30,166 bfs_SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Depreciation and amortization of deferred leasing costs | (7,316)bfs_DepreciationDepletionandAmortizationIncludingDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | (6,897)bfs_DepreciationDepletionandAmortizationIncludingDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Change in fair value of derivatives | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Net Income | 22,491 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 23,269 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Capital investment | 2,946 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 10,732 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Total assets | 937,619 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember | 895,510 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = bfs_ShoppingCentersMember |
Mixed-Use Properties |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 12,711 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 13,113 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Expenses | (4,227)us-gaap_CostOfRealEstateRevenue / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | (3,751)us-gaap_CostOfRealEstateRevenue / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Income from real estate | 8,484 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 9,362 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Interest expense and amortization of deferred debt costs | 0 bfs_NoncashInterestExpenseAccretionAndAmortizationOfDeferredFinanceFees / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 0 bfs_NoncashInterestExpenseAccretionAndAmortizationOfDeferredFinanceFees / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
General and administrative | 0 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 0 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Acquisition related costs | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Predevelopment expenses |  | (503)us-gaap_OtherOperatingIncomeExpenseNet / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Subtotal | 8,484 bfs_SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 8,859 bfs_SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Depreciation and amortization of deferred leasing costs | (3,124)bfs_DepreciationDepletionandAmortizationIncludingDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | (3,283)bfs_DepreciationDepletionandAmortizationIncludingDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Change in fair value of derivatives | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 0 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Net Income | 5,360 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 5,576 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Capital investment | 7,678 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 3,156 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Total assets | 312,311 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember | 293,919 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = bfs_MixedUsePropertiesMember |
Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 13 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 15 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Expenses | 0 us-gaap_CostOfRealEstateRevenue / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 us-gaap_CostOfRealEstateRevenue / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Income from real estate | 13 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 15 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Interest expense and amortization of deferred debt costs | (11,406)bfs_NoncashInterestExpenseAccretionAndAmortizationOfDeferredFinanceFees / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (11,467)bfs_NoncashInterestExpenseAccretionAndAmortizationOfDeferredFinanceFees / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
General and administrative | (3,771)us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (4,680)us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Acquisition related costs | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Predevelopment expenses |  | 0 us-gaap_OtherOperatingIncomeExpenseNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Subtotal | (15,164)bfs_SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (16,132)bfs_SegmentReportingInformationOperatingIncomeLossBeforeDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Depreciation and amortization of deferred leasing costs | 0 bfs_DepreciationDepletionandAmortizationIncludingDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 bfs_DepreciationDepletionandAmortizationIncludingDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Change in fair value of derivatives | (6)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (2)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Net Income | (15,170)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (16,134)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Capital investment | 0 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 us-gaap_PaymentsToAcquireProductiveAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Total assets | $ 20,681 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | $ 15,168 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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- Definition This element represents the total of the costs related to real estate revenues, including management, leasing, and development services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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