$STAG
STAG Industrial, Inc. Stock $stag

$stag Overview Financials Valuation SEC Filings Company Website

2013 Q1 Form 10-K Financial Statement

#000104746913002284 Filed on March 06, 2013

Income Statement

Concept	2013 Q1	2011 Q4	2011 Q3
Revenue	$29.99M	$16.55M	$14.84M
YoY Change	74.54%	180.54%	121.51%
Cost Of Revenue	$5.300M	$2.900M	$2.600M
YoY Change	82.76%	163.64%	62.5%
Gross Profit	$24.70M	$13.60M	$12.60M
YoY Change	69.18%	183.33%	147.06%
Gross Profit Margin	82.37%	82.17%	84.9%
Selling, General & Admin	$4.500M	$3.900M	$2.500M
YoY Change	50.0%	1850.0%	1150.0%
% of Gross Profit	18.22%	28.68%	19.84%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$15.60M	$8.100M	$8.300M
YoY Change	75.28%	636.36%	159.37%
% of Gross Profit	63.16%	59.56%	65.87%
Operating Expenses	$20.00M	$12.10M	$10.20M
YoY Change	70.94%	1110.0%	200.0%
Operating Profit	$4.700M	$1.500M	$2.400M
YoY Change	62.07%	-60.53%	41.18%
Interest Expense	$4.650M	-$3.600M	$4.330M
YoY Change	13.64%	44.0%	-217.03%
% of Operating Profit	98.94%	-240.0%	180.42%
Other Income/Expense, Net	-$4.647M	$100.0K	-$3.693M
YoY Change	19.98%
Pretax Income	-$500.0K	-$2.300M	-$1.700M
YoY Change	-64.29%	-276.92%	-15.0%
Income Tax	$0.00	$0.00	$0.00
% Of Pretax Income
Net Earnings	-$153.0K	-$2.534M	-$384.0K
YoY Change	-92.12%	-353.4%	-80.8%
Net Earnings / Revenue	-0.51%	-15.31%	-2.59%
Basic Earnings Per Share
Diluted Earnings Per Share	-$4.808K	-$94.94K	-$25.32K
COMMON SHARES
Basic Shares Outstanding	42.22M shares	15.90M shares	15.82M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2013 Q1	2011 Q4	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$12.00M	$16.50M	$12.00M
YoY Change	-35.14%
Cash & Equivalents	$11.98M	$16.50M	$11.99M
Short-Term Investments
Other Short-Term Assets	$3.700M	$1.400M	$1.800M
YoY Change	146.67%
Inventory
Prepaid Expenses
Receivables	$10.40M	$5.600M	$4.800M
Other Receivables	$300.0K	$400.0K	$100.0K
Total Short-Term Assets	$26.40M	$23.90M	$18.70M
YoY Change	1.54%
LONG-TERM ASSETS
Property, Plant & Equipment	$811.8M	$472.3M	$444.3M
YoY Change	62.72%
Goodwill	$4.923M	$4.923M	$4.923M
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$13.40M	$9.200M	$9.900M
YoY Change	25.23%
Total Long-Term Assets	$1.023B	$600.6M	$562.2M
YoY Change	62.01%
TOTAL ASSETS
Total Short-Term Assets	$26.40M	$23.90M	$18.70M
Total Long-Term Assets	$1.023B	$600.6M	$562.2M
Total Assets	$1.049B	$624.5M	$580.9M
YoY Change	59.62%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$8.800M	$0.00	$100.0K
YoY Change	91.3%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$195.0M	$0.00	$17.50M
YoY Change	387.5%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$226.7M	$15.60M	$29.70M
YoY Change	299.82%
LONG-TERM LIABILITIES
Long-Term Debt	$228.8M	$296.8M	$291.1M
YoY Change	-23.04%
Other Long-Term Liabilities	$7.300M	$2.100M	$1.100M
YoY Change	265.0%
Total Long-Term Liabilities	$236.1M	$298.9M	$292.2M
YoY Change	-21.12%
TOTAL LIABILITIES
Total Short-Term Liabilities	$226.7M	$15.60M	$29.70M
Total Long-Term Liabilities	$236.1M	$298.9M	$292.2M
Total Liabilities	$462.9M	$314.6M	$327.9M
YoY Change	30.05%
SHAREHOLDERS EQUITY
Retained Earnings	-$75.38M	-$18.39M	-$11.72M
YoY Change
Common Stock	$525.3M	$180.1M	$181.5M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$518.5M	$230.7M	$169.8M
YoY Change
Total Liabilities & Shareholders Equity	$1.049B	$624.5M	$580.9M
YoY Change	59.62%

Cashflow Statement

Concept	2013 Q1	2011 Q4	2011 Q3
OPERATING ACTIVITIES
Net Income	-$153.0K	-$2.534M	-$384.0K
YoY Change	-92.12%	-353.4%	-80.8%
Depreciation, Depletion And Amortization	$15.60M	$8.100M	$8.300M
YoY Change	75.28%	636.36%	159.37%
Cash From Operating Activities	$12.58M	$4.100M	$8.800M
YoY Change	59.49%	70.83%	300.0%
INVESTING ACTIVITIES
Capital Expenditures	-$61.30M	-$47.60M	-$49.50M
YoY Change	58.4%	23700.0%	9800.0%
Acquisitions
YoY Change
Other Investing Activities	-$1.100M	$5.100M	-$700.0K
YoY Change	-1200.0%	-1800.0%	-800.0%
Cash From Investing Activities	-$62.34M	-$42.40M	-$50.20M
YoY Change	61.43%	8380.0%	9940.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$117.5M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$42.73M	42.80M	40.10M
YoY Change	30.7%	-2240.0%	-1704.0%
NET CHANGE
Cash From Operating Activities	$12.58M	4.100M	8.800M
Cash From Investing Activities	-$62.34M	-42.40M	-50.20M
Cash From Financing Activities	$42.73M	42.80M	40.10M
Net Change In Cash	-$7.026M	4.500M	-1.300M
YoY Change	-457.74%	-4600.0%	62.5%
FREE CASH FLOW
Cash From Operating Activities	$12.58M	$4.100M	$8.800M
Capital Expenditures	-$61.30M	-$47.60M	-$49.50M
Free Cash Flow	$73.88M	$51.70M	$58.30M
YoY Change	58.58%	1888.46%	2059.26%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Payments For Deposits On Real Estate Acquisitions PaymentsForDepositsOnRealEstateAcquisitions	130000	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	34924000	USD
CY2011Q4	stag	Aggregate Liquidation Preference Stock Value AggregateLiquidationPreferenceStockValue	25.00
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	35698582	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	15901560	shares
CY2012	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	85487000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	75891000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-16873000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-7277000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-2922000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	-10199000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	-6479000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-12811000	USD
	stag	Rental Income RentalIncome	36730000	USD
	us-gaap	Tenant Reimbursements TenantReimbursements	4468000	USD
	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	914000	USD
	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	42112000	USD
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	3584000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	8365000	USD
	us-gaap	Real Estate Taxes And Insurance RealEstateTaxesAndInsurance	3620000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1088000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	21958000	USD
	us-gaap	Other Expenses OtherExpenses	294000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	38909000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	28000	USD
	us-gaap	Interest Expense InterestExpense	11841000	USD
	us-gaap	Gain Loss On Interest Rate Derivative Instruments Not Designated As Hedging Instruments GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments	2179000	USD
	stag	Transaction Costs TransactionCosts	3674000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-13386000	USD
	stag	Offering Costs OfferingCosts	78000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-10183000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	627000	USD
	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	329000	USD
	us-gaap	Profit Loss ProfitLoss	-9227000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-3396000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-5831000	USD
	us-gaap	Minority Interest In Net Income Loss Preferred Unit Holders MinorityInterestInNetIncomeLossPreferredUnitHolders	1018000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-6849000	USD
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	15630910	shares
	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.48
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	956000	USD
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.44
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.7257
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-480000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-10679000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-6850000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-9227000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-109000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-480000	USD
CY2012	us-gaap	Asset Impairment Charges AssetImpairmentCharges	622000	USD
CY2012	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	43473000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-929000	USD
CY2012	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	122000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-371000	USD
CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	12111000	USD
CY2012Q4	stag	Unsecured Credit Facility UnsecuredCreditFacility	99300000	USD
CY2012Q4	us-gaap	Unsecured Long Term Debt UnsecuredLongTermDebt	150000000	USD
CY2012	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	58210000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	48011000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-417203000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	2508000	USD
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	69000000	USD
CY2012	us-gaap	Proceeds From Unsecured Lines Of Credit ProceedsFromUnsecuredLinesOfCredit	215300000	USD
CY2012	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	150000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	242947000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	371700000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	19006000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16498000	USD
CY2011Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	277000	USD
CY2011Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-14043000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	309909000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	489460000	USD
CY2012	stag	Adjustments To Additional Paid In Capital Transaction Related Costs AdjustmentsToAdditionalPaidInCapitalTransactionRelatedCosts	11136000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	242947000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	205563000	USD
	stag	Adjustments To Additional Paid In Capital Redemption Of Initial Capitalization Of Successor Entity AdjustmentsToAdditionalPaidInCapitalRedemptionOfInitialCapitalizationOfSuccessorEntity	2000	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	95670000	USD
	stag	Adjustments To Additional Paid In Capital Transaction Related Costs AdjustmentsToAdditionalPaidInCapitalTransactionRelatedCosts	19537000	USD
	stag	Stock Issued During Period Value Preferred Stock StockIssuedDuringPeriodValuePreferredStock	69000000	USD
	us-gaap	Dividends Dividends	18208000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	693000	USD
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012Q2	dei	Entity Public Float EntityPublicFloat	361800000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	770052000	USD
CY2012Q4	us-gaap	Assets Assets	1005124000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	515664000	USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011Q4	us-gaap	Land Land	70870000	USD
CY2011Q4	stag	Buildings Buildings	394822000	USD
CY2011Q4	us-gaap	Tenant Improvements TenantImprovements	25056000	USD
CY2011Q4	stag	Buildings Improvements BuildingsImprovements	11510000	USD
CY2011Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	30004000	USD
CY2011Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	472254000	USD
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	42221072	shares
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	6611000	USD
CY2011Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	5592000	USD
CY2011Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	1355000	USD
CY2011Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	2634000	USD
CY2011Q4	stag	Leasing Commissions Net LeasingCommissionsNet	954000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	4923000	USD
CY2011Q4	us-gaap	Due From Related Parties DueFromRelatedParties	400000	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	STAG Industrial, Inc.
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0001479094
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2011Q4	stag	Deferred Leasing Intangibles Assets Net DeferredLeasingIntangiblesAssetsNet	113293000	USD
CY2011Q4	us-gaap	Assets Assets	624514000	USD
CY2011Q4	us-gaap	Secured Debt SecuredDebt	296779000	USD
CY2011Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	6044000	USD
CY2011Q4	us-gaap	Interest Rate Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue	215000	USD
CY2011Q4	us-gaap	Customer Advances And Deposits CustomerAdvancesAndDeposits	3478000	USD
CY2011Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	6160000	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	69000000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	314605000	USD
CY2011Q4	stag	Deferred Leasing Intangibles Liabilities Net DeferredLeasingIntangiblesLiabilitiesNet	1929000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	159000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	179919000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-18385000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	230693000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	79216000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	624514000	USD
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	2760000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	2760000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	2760000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	2760000	shares
CY2012Q4	stag	Aggregate Liquidation Preference Stock Value AggregateLiquidationPreferenceStockValue	25.00
CY2012Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	172	item
CY2012Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	31	item
CY2012Q4	stag	Number Of Warehouse Or Distribution Properties Owned NumberOfWarehouseOrDistributionPropertiesOwned	112	item
CY2012Q4	stag	Number Of Manufacturing Properties Owned NumberOfManufacturingPropertiesOwned	39	item
CY2012Q4	stag	Number Of Office Or Flex Properties Owned NumberOfOfficeOrFlexPropertiesOwned	21	item
CY2012Q4	stag	Percentage Property Leased To Tenant PercentagePropertyLeasedToTenant	0.951	pure
CY2012Q4	stag	Properties Leased To Number Of Tenants PropertiesLeasedToNumberOfTenants	156	item
CY2011Q2	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	164700000	USD
CY2011Q2	stag	Payment Of Direct Costs Relating To Debt And Termination Of Interest Rate Swap PaymentOfDirectCostsRelatingToDebtAndTerminationOfInterestRateSwap	2500000	USD
CY2011Q2	stag	Payment Of Transfer Taxes And Other Fees PaymentOfTransferTaxesAndOtherFees	300000	USD
CY2012	us-gaap	Use Of Estimates UseOfEstimates	<div style='font-size:10.0pt;FONT-FAMILY: Times New Roman;'> <p style="FONT-FAMILY: times"><font size="2"><b><i>Use of Estimates</i></b></font></p> <p style="FONT-FAMILY: times"><font size="2">        The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.</font></p></div>
CY2012Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2012	stag	Schedule Of Reconciliation Of Net Loss To Taxable Income ScheduleOfReconciliationOfNetLossToTaxableIncome	<div style='font-size:10.0pt;FONT-FAMILY: Times New Roman;'> <p style="FONT-FAMILY: times"><font size="2">The following table reconciles net loss to taxable income for the year ended December 31, 2012 and the period April 20, 2011 to December 31, 2011 (in thousands):</font></p> <div style="PADDING-RIGHT: 0pt; PADDING-LEFT: 0pt; PADDING-BOTTOM: 0pt; MARGIN-LEFT: 15%; WIDTH: 70%; PADDING-TOP: 0pt; POSITION: relative"> <p style="FONT-FAMILY: times"><font size="2"><!-- COMMAND=ADD_TABLEWIDTH,"100%" --></font></p> <!-- User-specified TAGGED TABLE --> <div align="center"> <table cellspacing="0" cellpadding="0" width="100%" border="0"> <tr style="HEIGHT: 0px"><!-- TABLE COLUMN WIDTHS SET --> <td style="FONT-FAMILY: times" align="left"></td> <td style="FONT-FAMILY: times" width="12"></td> <td style="FONT-FAMILY: times" align="right" width="7"></td> <td style="FONT-FAMILY: times" width="64"></td> <td style="FONT-FAMILY: times" width="12"></td> <td style="FONT-FAMILY: times" align="right" width="7"></td> <td style="FONT-FAMILY: times" width="88"></td> <td style="FONT-FAMILY: times" width="12"></td><!-- TABLE COLUMN WIDTHS END --></tr> <tr style="HEIGHT: 0px" valign="bottom"> <th style="FONT-FAMILY: times" align="left"><font size="2"> </font><br /></th> <th style="FONT-FAMILY: times"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="2"><font size="1"><b>Year ended<br /> December 31,<br /> 2012</b></font></th> <th style="FONT-FAMILY: times"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="2"><font size="1"><b>Period from<br /> April 20, 2011 to<br /> December 31, 2011</b></font></th> <th style="FONT-FAMILY: times"><font size="1"> </font></th></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Net loss</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(10,199</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(9,227</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Book/Tax differences from depreciation and amortization</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">24,048</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">12,625</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Above/Below market lease amortization</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">4,837</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">2,776</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Loss on impairments</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">4,563</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">—</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Formation Transaction costs</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">—</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">3,169</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Offering costs</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">68</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">78</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Book/Tax difference on property acquisition costs</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">4,218</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">1,088</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Loss on extinguishment of debt</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">565</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">—</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Accrued non-recurring IPO bonus payment</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(1,000</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">1,000</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Accrued bonus payment</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">3,731</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">—</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Book/Tax difference on bad debt expense</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">317</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">526</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Book/Tax difference on non-cash compensation</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">1,375</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">560</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Book/Tax difference on gain on sales of real estate</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(4,554</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(1,231</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Straight-line rent adjustments, net</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(2,796</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(1,036</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Unrealized gain on interest rate swaps</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(215</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(2,805</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Book/tax difference on non-cash portion of interest expense</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(159</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">—</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Other book/tax differences, net</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">63</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(73</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Loss attributable to noncontrolling interest</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(5,940</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">(1,768</font></td> <td style="FONT-FAMILY: times"><font size="2">)</font></td></tr> <tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="top"> <td style="FONT-FAMILY: times" valign="bottom"> </td> <td style="FONT-FAMILY: times" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" valign="bottom" align="right" colspan="2"> </td> <td style="FONT-FAMILY: times" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" valign="bottom" align="right" colspan="2"> </td> <td style="FONT-FAMILY: times" valign="bottom"> </td></tr> <tr style="HEIGHT: 0px" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times"> <p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"><font size="2">Taxable income subject to distribution requirement(1)</font></p></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">18,922</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times" align="right"><font size="2">5,682</font></td> <td style="FONT-FAMILY: times"><font size="2"> </font></td></tr></table></div> <!-- end of user-specified TAGGED TABLE --><!-- COMMAND=ADD_LINERULETXT,NOSHADE COLOR="#000000" SIZE="1.0PT" WIDTH="26%" ALIGN="LEFT" --> <hr style="COLOR: #000000" align="left" width="26%" noshade="noshade" size="1" /></div> <div style="PADDING-RIGHT: 0pt; PADDING-LEFT: 0pt; PADDING-BOTTOM: 0pt; MARGIN-LEFT: 15%; PADDING-TOP: 0pt; POSITION: relative; TEXT-ALIGN: left"> <dl compact="compact"> <dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"><font size="2">(1)</font></dt> <dd style="FONT-FAMILY: times"><font size="2">The Company distributed in excess of 100% of its taxable income to its stockholders during the year ended December 31, 2012 and the period April 20, 2011 to December 31, 2011.</font></dd></dl></div></div>
CY2012	us-gaap	Interest Paid InterestPaid	15044000	USD
	us-gaap	Interest Paid InterestPaid	11445000	USD
CY2011Q4	stag	Noncash Or Part Noncash Acquisition Tangible Assets NoncashOrPartNoncashAcquisitionTangibleAssets	215890000	USD
CY2011Q4	stag	Noncash Or Part Noncash Acquisition Goodwill NoncashOrPartNoncashAcquisitionGoodwill	4923000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Intangible Assets Acquired1 NoncashOrPartNoncashAcquisitionIntangibleAssetsAcquired1	83442000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	201789000	USD
CY2011Q4	stag	Noncash Or Part Noncash Acquisition Fair Market Value Adjustment Mortgage Notes Payable NoncashOrPartNoncashAcquisitionFairMarketValueAdjustmentMortgageNotesPayable	675000	USD
	stag	Noncash Or Part Noncash Acquisition Purchase Price Allocation Notes Payable To Related Parties NoncashOrPartNoncashAcquisitionPurchasePriceAllocationNotesPayableToRelatedParties	4466000	USD
CY2012	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	item
CY2012	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	item
CY2011Q4	stag	Noncash Or Part Noncash Acquisition Purchase Price Allocation Intangible Assets NoncashOrPartNoncashAcquisitionPurchasePriceAllocationIntangibleAssets	1066000	USD
	stag	Business Acquisition Purchase Price Allocation Interest Rate Swap BusinessAcquisitionPurchasePriceAllocationInterestRateSwap	420000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	171000	USD
	stag	Noncash Or Part Noncash Acquisition Purchase Price Allocation Issuance Of Units NoncashOrPartNoncashAcquisitionPurchasePriceAllocationIssuanceOfUnits	95670000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	440000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	440000	USD
CY2012	stag	Write Off Of Fully Depreciated Tenant Improvements WriteOffOfFullyDepreciatedTenantImprovements	576000	USD
CY2012	stag	Write Off Of Accumulated Depreciation WriteOffOfAccumulatedDepreciation	576000	USD
CY2012Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	11301000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	500000	USD
CY2012Q4	stag	Accrued Rental Revenue AccruedRentalRevenue	6400000	USD
CY2011Q4	stag	Accrued Rental Revenue AccruedRentalRevenue	4500000	USD
CY2012Q4	stag	Allowance On Accrued Rental Revenue AllowanceOnAccruedRentalRevenue	0	USD
CY2011Q4	stag	Allowance On Accrued Rental Revenue AllowanceOnAccruedRentalRevenue	400000	USD
CY2012Q4	stag	Lease Security Deposits Available In Letters Of Credit LeaseSecurityDepositsAvailableInLettersOfCredit	4800000	USD
CY2011Q4	stag	Lease Security Deposits Available In Letters Of Credit LeaseSecurityDepositsAvailableInLettersOfCredit	3600000	USD
CY2012Q4	stag	Lease Security Deposits Available In Cash LeaseSecurityDepositsAvailableInCash	2000000	USD
CY2011Q4	stag	Lease Security Deposits Available In Cash LeaseSecurityDepositsAvailableInCash	1200000	USD
CY2012	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1100000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	800000	USD
CY2012	stag	Common Stock Dividend Per Share Tax Treatment For Income Tax Purposes Ordinary Income CommonStockDividendPerShareTaxTreatmentForIncomeTaxPurposesOrdinaryIncome	0.6340
	stag	Common Stock Dividend Per Share Tax Treatment For Income Tax Purposes Ordinary Income CommonStockDividendPerShareTaxTreatmentForIncomeTaxPurposesOrdinaryIncome	0.3471
CY2012	stag	Common Stock Dividend Per Share Tax Treatment For Income Tax Purposes Return Of Capital CommonStockDividendPerShareTaxTreatmentForIncomeTaxPurposesReturnOfCapital	0.4260
	stag	Common Stock Dividend Per Share Tax Treatment For Income Tax Purposes Return Of Capital CommonStockDividendPerShareTaxTreatmentForIncomeTaxPurposesReturnOfCapital	0.1186
CY2012	stag	Common Stock Dividends Per Share Tax Treatment For Income Tax Purposes Declared CommonStockDividendsPerShareTaxTreatmentForIncomeTaxPurposesDeclared	1.06
	stag	Common Stock Dividends Per Share Tax Treatment For Income Tax Purposes Declared CommonStockDividendsPerShareTaxTreatmentForIncomeTaxPurposesDeclared	0.4657
CY2012	stag	Common Stock Dividend Per Share Tax Treatment For Income Tax Purposes Ordinary Income As Percentage Of Dividend Declared CommonStockDividendPerShareTaxTreatmentForIncomeTaxPurposesOrdinaryIncomeAsPercentageOfDividendDeclared	0.598	pure
	stag	Common Stock Dividend Per Share Tax Treatment For Income Tax Purposes Ordinary Income As Percentage Of Dividend Declared CommonStockDividendPerShareTaxTreatmentForIncomeTaxPurposesOrdinaryIncomeAsPercentageOfDividendDeclared	0.745	pure
CY2012	stag	Common Stock Dividend Per Share Tax Treatment For Income Tax Purposes Return Of Capital As Percentage Of Dividend Declared CommonStockDividendPerShareTaxTreatmentForIncomeTaxPurposesReturnOfCapitalAsPercentageOfDividendDeclared	0.402	pure
	stag	Common Stock Dividend Per Share Tax Treatment For Income Tax Purposes Return Of Capital As Percentage Of Dividend Declared CommonStockDividendPerShareTaxTreatmentForIncomeTaxPurposesReturnOfCapitalAsPercentageOfDividendDeclared	0.255	pure
CY2012	stag	Common Stock Dividends Per Share Tax Treatment For Income Tax Purposes Dividend Declared Percentage CommonStockDividendsPerShareTaxTreatmentForIncomeTaxPurposesDividendDeclaredPercentage	1.00	pure
	stag	Common Stock Dividends Per Share Tax Treatment For Income Tax Purposes Dividend Declared Percentage CommonStockDividendsPerShareTaxTreatmentForIncomeTaxPurposesDividendDeclaredPercentage	1.00	pure
CY2012	stag	Minimum Percentage Of Ordinary Taxable Income Distribution Requirement MinimumPercentageOfOrdinaryTaxableIncomeDistributionRequirement	0.90	pure
CY2012	stag	State And Local Income Excise And Franchise Taxes StateAndLocalIncomeExciseAndFranchiseTaxes	300000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Depreciation And Amortization ReconciliationOfNetIncomeLossToTaxableIncomeDepreciationAndAmortization	24048000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Amortization Of Above And Below Market Rent ReconciliationOfNetIncomeLossToTaxableIncomeAmortizationOfAboveAndBelowMarketRent	4837000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Offering Costs ReconciliationOfNetIncomeLossToTaxableIncomeOfferingCosts	68000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Property Acquisition Costs ReconciliationOfNetIncomeLossToTaxableIncomePropertyAcquisitionCosts	4218000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Accrued Non Recurring Ipo Bonus Payment ReconciliationOfNetIncomeLossToTaxableIncomeAccruedNonRecurringIPOBonusPayment	-1000000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Bad Debts ReconciliationOfNetIncomeLossToTaxableIncomeBadDebts	317000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Equity Compensation ReconciliationOfNetIncomeLossToTaxableIncomeEquityCompensation	1375000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Gain On Sale Of Assets ReconciliationOfNetIncomeLossToTaxableIncomeGainOnSaleOfAssets	4554000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Straight Line Rental Income Adjustments ReconciliationOfNetIncomeLossToTaxableIncomeStraightLineRentalIncomeAdjustments	2796000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Unrealized Gain On Interest Rate Swaps ReconciliationOfNetIncomeLossToTaxableIncomeUnrealizedGainOnInterestRateSwaps	215000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Other Differences Net ReconciliationOfNetIncomeLossToTaxableIncomeOtherDifferencesNet	-63000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Minority Interest Income ReconciliationOfNetIncomeLossToTaxableIncomeMinorityInterestIncome	5940000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Taxable Income Subject To Distribution Requirement ReconciliationOfNetIncomeLossToTaxableIncomeTaxableIncomeSubjectToDistributionRequirement	18922000	USD
CY2012	stag	Minimum Percentage Of Distribution Of Taxable Income To Stockholders MinimumPercentageOfDistributionOfTaxableIncomeToStockholders	1.00	pure
CY2012	stag	Real Estate Taxes Tenant Responsibility RealEstateTaxesTenantResponsibility	6900000	USD
	stag	Real Estate Taxes Tenant Responsibility RealEstateTaxesTenantResponsibility	3500000	USD
CY2011Q3	stag	Number Of Facilities Which Lease Termination Agreements Were Entered NumberOfFacilitiesWhichLeaseTerminationAgreementsWereEntered	2	item
CY2011Q3	stag	Lease Termination Fee Applied To Outstanding Accounts Receivable LeaseTerminationFeeAppliedToOutstandingAccountsReceivable	45000	USD
	stag	Lease Termination Fee LeaseTerminationFee	1800000	USD
CY2012Q4	stag	Deferred Leasing Intangibles Liabilities Net DeferredLeasingIntangiblesLiabilitiesNet	6871000	USD
CY2012Q4	stag	Deferred Leasing Intangibles Assets Net DeferredLeasingIntangiblesAssetsNet	187555000	USD
CY2012	stag	Non Cash Interest Expense NonCashInterestExpense	957000	USD
CY2012Q2	us-gaap	Fair Value Inputs Discount Rate FairValueInputsDiscountRate	0.114	pure
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	104414000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	95776000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	82419000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	71691000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	55410000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	171476000	USD
CY2012	us-gaap	Debt Instrument Description Of Variable Rate Basis DebtInstrumentDescriptionOfVariableRateBasis	One-month LIBOR
CY2011Q4	stag	Debt Instrument Reference Rate DebtInstrumentReferenceRate	0.00295	pure
CY2012Q4	stag	Debt Instrument Reference Rate DebtInstrumentReferenceRate	0.00209	pure
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	296779000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	479215000	USD
CY2012Q3	us-gaap	Derivative Number Of Instruments Held DerivativeNumberOfInstrumentsHeld	7	item
CY2012Q4	us-gaap	Unsecured Debt UnsecuredDebt	150000000	USD
CY2012Q3	invest	Derivative Notional Amount DerivativeNotionalAmount	100000000	USD
CY2012Q4	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	600000	USD
CY2012	us-gaap	Derivative Instruments Loss Recognized In Other Comprehensive Income Effective Portion DerivativeInstrumentsLossRecognizedInOtherComprehensiveIncomeEffectivePortion	608000	USD
CY2012Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	500000	USD
CY2012Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Liabilities DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities	43000	USD
CY2012Q4	us-gaap	Assets Needed For Immediate Settlement Aggregate Fair Value AssetsNeededForImmediateSettlementAggregateFairValue	500000	USD
CY2012	us-gaap	Minority Interest In Net Income Loss Preferred Unit Holders MinorityInterestInNetIncomeLossPreferredUnitHolders	6210000	USD
CY2012	stag	Incremental Amount Allocated To Holders Of Nonvested Restricted Shares IncrementalAmountAllocatedToHoldersOfNonvestedRestrictedShares	-122000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3058000	USD
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-10551000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	-662000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-2260000	USD
CY2012	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	25046664	shares
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.42
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.09
CY2012	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.51
	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3713000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-7488000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	317000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	639000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	0.04
CY2011Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.26
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	17042000	USD
CY2012	stag	Number Of Ground Leases For Which Entity Is Lessee NumberOfGroundLeasesForWhichEntityIsLessee	4	item
CY2012	stag	Ground Rent Expense GroundRentExpense	200000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	696000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	708000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	719000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	487000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	315000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	7101000	USD
CY2012	stag	Defined Contribution Plan Requisite Service Period For Eligibility DefinedContributionPlanRequisiteServicePeriodForEligibility	P3M
CY2012	stag	Defined Contribution Plan Employer Matching Contribution As Percentage Of Employee Contribution DefinedContributionPlanEmployerMatchingContributionAsPercentageOfEmployeeContribution	0.50	pure
CY2012	us-gaap	Defined Contribution Plan Maximum Annual Contribution Per Employee Percent DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent	0.060	pure
CY2012	stag	Defined Contribution Plan Vesting Period DefinedContributionPlanVestingPeriod	P3Y
CY2011Q2	stag	Related Party Transaction Repayment Of Bridge Loan RelatedPartyTransactionRepaymentOfBridgeLoan	4800000	USD
CY2011Q2	stag	Noncash Or Part Noncash Acquisition Purchase Price Allocation Assumption Of Bridge Loans For Option Properties NoncashOrPartNoncashAcquisitionPurchasePriceAllocationAssumptionOfBridgeLoansForOptionProperties	4800000	USD
CY2012Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	27236000	USD
CY2012Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	21236000	USD
CY2012Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	19475000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-2844000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1233000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1892000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	-3372000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	-5262000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	-2235000	USD
CY2012Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.10
CY2012Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.18
CY2012Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.11
CY2012Q1	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	17540000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1308000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	-1942000	USD
CY2012Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.12
CY2011Q4	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	16552000	USD
CY2011Q3	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	14841000	USD
CY2011Q2	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	10719000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-2309000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1899000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-5975000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	-2534000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	-384000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	-3903000	USD
CY2011Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.16
CY2011Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.02
	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	4507000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	23893000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	14666000	USD
	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	80191000	USD
CY2012	us-gaap	Dividends Dividends	43747000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1941000	USD
CY2012Q2	stag	Net Rentable Area After Exercise Of Option By Tenant To Downsize The Space As Per Lease Agreement NetRentableAreaAfterExerciseOfOptionByTenantToDownsizeTheSpaceAsPerLeaseAgreement	60000
CY2012Q2	us-gaap	Net Rentable Area NetRentableArea	190000
	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	292426000	USD
	us-gaap	Real Estate Improvements RealEstateImprovements	4513000	USD
	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	4544000	USD
	stag	Real Estate Write Off Of Tenant Improvements RealEstateWriteOffOfTenantImprovements	362000	USD
CY2011Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	502258000	USD
CY2011Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	30004000	USD
	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	9618000	USD
	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	573000	USD
CY2012Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	816228000	USD
CY2012	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	322719000	USD
CY2012	us-gaap	Real Estate Improvements RealEstateImprovements	3541000	USD
CY2012	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	8309000	USD
CY2012	stag	Real Estate Write Off Of Tenant Improvements RealEstateWriteOffOfTenantImprovements	576000	USD
CY2012	stag	Real Estate Asset Impairments RealEstateAssetImpairments	3406000	USD
CY2012Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	46175000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	18174000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	1885000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	118000	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	22794000	USD
	stag	Non Cash Interest Expense NonCashInterestExpense	737000	USD
	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	2776000	USD
	stag	Amortization Of Tenant Straight Line Receivable AmortizationOfTenantStraightLineReceivable	-1036000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	693000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	695000	USD
	stag	Increase Decrease In Leasing Commissions Net IncreaseDecreaseInLeasingCommissionsNet	877000	USD
	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	124000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	207000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1503000	USD
	stag	Increase Decrease In Tenant Security Deposits And Prepaid Rent IncreaseDecreaseInTenantSecurityDepositsAndPrepaidRent	783000	USD
	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	54000	USD
	us-gaap	Payments For Repurchase Of Initial Public Offering PaymentsForRepurchaseOfInitialPublicOffering	2000	USD
	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	10366000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	34500000	USD
	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	1561000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	2159000	USD
	stag	Payments Of Preferred Stock Issuance Costs PaymentsOfPreferredStockIssuanceCosts	-2495000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-114458000	USD
	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	205563000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	48339000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	160645000	USD
	us-gaap	Payments For Hedge Financing Activities PaymentsForHedgeFinancingActivities	894000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3397000	USD
	stag	Payment Of Cash Distribution To Members PaymentOfCashDistributionToMembers	12048000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	116013000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	16221000	USD
CY2012Q4	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	12829194
CY2011Q4	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	11024547
CY2012	stag	Number Of Properties Acquired NumberOfPropertiesAcquired	70	property
	stag	Number Of Properties Acquired NumberOfPropertiesAcquired	49	property
CY2012	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	116978000	USD
CY2011	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	114325000	USD
CY2012	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-5807000	USD
CY2011	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-4298000	USD
CY2012	stag	Business Acquisitions Pro Forma Net Income Loss Attributable To Parent BusinessAcquisitionsProFormaNetIncomeLossAttributableToParent	-9415000	USD
CY2011	stag	Business Acquisitions Pro Forma Net Income Loss Attributable To Parent BusinessAcquisitionsProFormaNetIncomeLossAttributableToParent	-23554000	USD
CY2012	stag	Business Acquisitions Pro Forma Weighted Average Shares Outstanding BusinessAcquisitionsProFormaWeightedAverageSharesOutstanding	25046664	shares
CY2011	stag	Business Acquisitions Pro Forma Weighted Average Shares Outstanding BusinessAcquisitionsProFormaWeightedAverageSharesOutstanding	15630910	shares
CY2012	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	-0.38
CY2011	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	-0.23
	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	69000000	USD
CY2012	stag	Number Of Ground Leases Having Option To Extend Period Of Lease NumberOfGroundLeasesHavingOptionToExtendPeriodOfLease	2	item
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Land BusinessAcquisitionPurchasePriceAllocationLand	34991000	USD
CY2012Q4	stag	Business Acquisition Purchase Price Allocation Buildings And Building Improvements BusinessAcquisitionPurchasePriceAllocationBuildingsAndBuildingImprovements	269616000	USD
CY2012Q4	stag	Business Acquisition Purchase Price Allocation Tenant Improvements BusinessAcquisitionPurchasePriceAllocationTenantImprovements	10624000	USD
CY2012Q4	stag	Business Acquisition Purchase Price Allocation Cash And Escrow For Capital Additions BusinessAcquisitionPurchasePriceAllocationCashAndEscrowForCapitalAdditions	785000	USD
CY2012Q4	stag	Business Acquisition Purchase Price Allocation Building And Land Improvements BusinessAcquisitionPurchasePriceAllocationBuildingAndLandImprovements	7488000	USD
CY2012Q4	stag	Business Acquisition Purchase Price Allocation Assets Acquired Including Long Term Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredIncludingLongTermLiabilitiesAssumed	423908000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	423908000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Land BusinessAcquisitionPurchasePriceAllocationLand	46806000	USD
CY2011Q4	stag	Business Acquisition Purchase Price Allocation Buildings And Building Improvements BusinessAcquisitionPurchasePriceAllocationBuildingsAndBuildingImprovements	229688000	USD
CY2011Q4	stag	Business Acquisition Purchase Price Allocation Tenant Improvements BusinessAcquisitionPurchasePriceAllocationTenantImprovements	15982000	USD
CY2011Q4	stag	Business Acquisition Purchase Price Allocation Cash And Escrow For Capital Additions BusinessAcquisitionPurchasePriceAllocationCashAndEscrowForCapitalAdditions	1400000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Other Liabilities BusinessAcquisitionPurchasePriceAllocationOtherLiabilities	171000	USD
CY2011Q4	stag	Business Acquisition Purchase Price Allocation Interest Rate Swaps BusinessAcquisitionPurchasePriceAllocationInterestRateSwaps	420000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	4923000	USD
CY2011Q4	stag	Business Acquisition Purchase Price Allocation Above Below Market Assumed Debt Adjustment BusinessAcquisitionPurchasePriceAllocationAboveBelowMarketAssumedDebtAdjustment	675000	USD
CY2011Q4	stag	Business Acquisition Purchase Price Allocation Assets Acquired Including Long Term Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredIncludingLongTermLiabilitiesAssumed	414827000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Noncurrent Liabilities BusinessAcquisitionPurchasePriceAllocationNoncurrentLiabilities	206253000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	208574000	USD
CY2012	stag	Formation Transaction And Offering Costs Portion Expensed FormationTransactionAndOfferingCostsPortionExpensed	3700000	USD
	stag	Ground Rent Expense GroundRentExpense	100000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	300000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-5831000	USD
CY2011Q4	stag	Debt Instrument Book Value Of Collateratized Properties DebtInstrumentBookValueOfCollateratizedProperties	364700000	USD
CY2012Q4	stag	Debt Instrument Book Value Of Collateratized Properties DebtInstrumentBookValueOfCollateratizedProperties	269100000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Depreciation And Amortization ReconciliationOfNetIncomeLossToTaxableIncomeDepreciationAndAmortization	12625000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Amortization Of Above And Below Market Rent ReconciliationOfNetIncomeLossToTaxableIncomeAmortizationOfAboveAndBelowMarketRent	2776000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Formation Transaction Costs ReconciliationOfNetIncomeLossToTaxableIncomeFormationTransactionCosts	3169000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Offering Costs ReconciliationOfNetIncomeLossToTaxableIncomeOfferingCosts	78000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Property Acquisition Costs ReconciliationOfNetIncomeLossToTaxableIncomePropertyAcquisitionCosts	1088000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Accrued Non Recurring Ipo Bonus Payment ReconciliationOfNetIncomeLossToTaxableIncomeAccruedNonRecurringIPOBonusPayment	1000000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Bad Debts ReconciliationOfNetIncomeLossToTaxableIncomeBadDebts	526000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Equity Compensation ReconciliationOfNetIncomeLossToTaxableIncomeEquityCompensation	560000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Gain On Sale Of Assets ReconciliationOfNetIncomeLossToTaxableIncomeGainOnSaleOfAssets	1231000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Straight Line Rental Income Adjustments ReconciliationOfNetIncomeLossToTaxableIncomeStraightLineRentalIncomeAdjustments	1036000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Unrealized Gain On Interest Rate Swaps ReconciliationOfNetIncomeLossToTaxableIncomeUnrealizedGainOnInterestRateSwaps	2805000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Other Differences Net ReconciliationOfNetIncomeLossToTaxableIncomeOtherDifferencesNet	73000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Minority Interest Income ReconciliationOfNetIncomeLossToTaxableIncomeMinorityInterestIncome	1768000	USD
	stag	Reconciliation Of Net Income Loss To Taxable Income Taxable Income Subject To Distribution Requirement ReconciliationOfNetIncomeLossToTaxableIncomeTaxableIncomeSubjectToDistributionRequirement	5682000	USD
	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	46000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	693000	USD
CY2012Q4	us-gaap	Land Land	104656000	USD
CY2012Q4	stag	Buildings Buildings	654518000	USD
CY2012Q4	us-gaap	Tenant Improvements TenantImprovements	34900000	USD
CY2012Q4	stag	Buildings Improvements BuildingsImprovements	22153000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	46175000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	5497000	USD
CY2012Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	9351000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	1556000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	4704000	USD
CY2012Q4	stag	Leasing Commissions Net LeasingCommissionsNet	1674000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	4923000	USD
CY2012Q4	us-gaap	Due From Related Parties DueFromRelatedParties	806000	USD
CY2012Q4	us-gaap	Secured Debt SecuredDebt	229915000	USD
CY2012Q4	us-gaap	Interest Rate Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue	480000	USD
CY2012Q4	us-gaap	Customer Advances And Deposits CustomerAdvancesAndDeposits	5686000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	357000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	419643000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-61024000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	427605000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	61855000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1005124000	USD
CY2012	stag	Rental Income RentalIncome	75390000	USD
CY2012	us-gaap	Tenant Reimbursements TenantReimbursements	8785000	USD
CY2012	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	1312000	USD
CY2012	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	5998000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14549000	USD
CY2012	us-gaap	Real Estate Taxes And Insurance RealEstateTaxesAndInsurance	6890000	USD
CY2012	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	4218000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	43275000	USD
CY2012	us-gaap	Other Expenses OtherExpenses	339000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	19000	USD
CY2012	us-gaap	Interest Expense InterestExpense	16110000	USD
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	797000	USD
CY2012	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	222000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-3720000	USD
CY2012	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	4837000	USD
CY2012	stag	Amortization Of Tenant Straight Line Receivable AmortizationOfTenantStraightLineReceivable	-2796000	USD
CY2012	us-gaap	Gain Loss On Interest Rate Derivative Instruments Not Designated As Hedging Instruments GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments	215000	USD
CY2012	stag	Offering Costs OfferingCosts	68000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	1936000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1497000	USD
CY2012	stag	Increase Decrease In Leasing Commissions Net IncreaseDecreaseInLeasingCommissionsNet	1020000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	137000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	799000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	6174000	USD
CY2012	stag	Increase Decrease In Tenant Security Deposits And Prepaid Rent IncreaseDecreaseInTenantSecurityDepositsAndPrepaidRent	2208000	USD
CY2012	us-gaap	Increase Decrease In Due From Related Parties IncreaseDecreaseInDueFromRelatedParties	406000	USD
CY2012	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	325820000	USD
CY2012	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	7221000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-1251000	USD
CY2012	us-gaap	Payments For Deposits On Real Estate Acquisitions PaymentsForDepositsOnRealEstateAcquisitions	-550000	USD
CY2012	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	100405000	USD
CY2012	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	124300000	USD
CY2012	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	116000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	78067000	USD
CY2012	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	144753000	USD
CY2012	stag	Payment Of Cash Distribution To Members PaymentOfCashDistributionToMembers	38606000	USD
CY2012	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	4119000	USD
CY2012	stag	Issuance Of Units For Services IssuanceOfUnitsForServices	225000	USD
CY2011Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.26
	stag	State And Local Income Excise And Franchise Taxes StateAndLocalIncomeExciseAndFranchiseTaxes	300000	USD
CY2012Q4	stag	Number Of Industrial Properties Acquired NumberOfIndustrialPropertiesAcquired	32	property
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	-229521000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	696015000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	104656000	USD
CY2012Q4	stag	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition And Valuation Provision RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionAndValuationProvision	15556000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	711571000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	104656000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfLandAndBuildingsAndImprovements	816227000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Accumulated Depreciation RealEstateAndAccumulatedDepreciationAccumulatedDepreciation	46175000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Asset Impairment Charges ReconciliationOfNetIncomeLossToTaxableIncomeAssetImpairmentCharges	-4563000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Gains Losses On Extinguishment Of Debt ReconciliationOfNetIncomeLossToTaxableIncomeGainsLossesOnExtinguishmentOfDebt	565000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Accrued Bonus Payment ReconciliationOfNetIncomeLossToTaxableIncomeAccruedBonusPayment	3731000	USD
CY2012	stag	Reconciliation Of Net Income Loss To Taxable Income Interest Expense On Adjustments To Fair Market Value Of Debt ReconciliationOfNetIncomeLossToTaxableIncomeInterestExpenseOnAdjustmentsToFairMarketValueOfDebt	-159000	USD
CY2012Q4	stag	Number Of Industrial Properties Acquired NumberOfIndustrialPropertiesAcquired	1	property
CY2012Q4	stag	Common Stock Value Authorized Under Stock Offering Program CommonStockValueAuthorizedUnderStockOfferingProgram	75000000	USD
CY2012	stag	Asset Impairment Charges Attributable To Discontinued Operations AssetImpairmentChargesAttributableToDiscontinuedOperations	3941000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	34500000	USD
CY2012	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	124300000	USD
CY2012Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	0	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	4900000	USD
CY2010	stag	Ground Rent Expense GroundRentExpense	0	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	0	USD
CY2012Q3	stag	Debt Instrument Portion Of Total From Variable Rate Basis To Fixed Interest Rate DebtInstrumentPortionOfTotalFromVariableRateBasisToFixedInterestRate	100000000	USD
CY2012	stag	Payments Of Offering Costs PaymentsOfOfferingCosts	11136000	USD
CY2012	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	128000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	400000	USD
CY2012Q4	stag	Area Of Rentable Property Owned AreaOfRentablePropertyOwned	29400000
CY2012	stag	Number Of Properties Sold NumberOfPropertiesSold	3	item
CY2013Q1	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	6284152	shares
CY2012Q4	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	394000	USD
CY2012Q4	us-gaap	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	944582000	USD
CY2012	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	2.25
	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	0.36875
CY2012	stag	Adjustments To Additional Paid In Capital Stock Issued Underwriting Fees AdjustmentsToAdditionalPaidInCapitalStockIssuedUnderwritingFees	100000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	200000	USD
CY2012	stag	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Number Of Days Of Trailing Period Average Stock Price ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfDaysOfTrailingPeriodAverageStockPrice	P10D
CY2013Q1	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	0.5625
CY2012	stag	Common Stock Direct Offering Cost CommonStockDirectOfferingCost	200000	USD

Files In Submission

Name	View Source	Status
0001047469-13-002284-index-headers.html	Edgar Link	pending
0001047469-13-002284-index.html	Edgar Link	pending
0001047469-13-002284.txt	Edgar Link	pending
0001047469-13-002284-xbrl.zip	Edgar Link	pending
a2213224z10-k.htm	Edgar Link	pending
a2213224zex-10_30.htm	Edgar Link	pending
a2213224zex-12_1.htm	Edgar Link	pending
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a2213224zex-31_1.htm	Edgar Link	pending
a2213224zex-31_2.htm	Edgar Link	pending
a2213224zex-32_1.htm	Edgar Link	pending
a2213224zex-3_1.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
g222995.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
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stag-20121231.xml	Edgar Link	completed
stag-20121231.xsd	Edgar Link	pending
stag-20121231_cal.xml	Edgar Link	unprocessable
stag-20121231_def.xml	Edgar Link	unprocessable
stag-20121231_lab.xml	Edgar Link	unprocessable
stag-20121231_pre.xml	Edgar Link	unprocessable

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$STAG
STAG Industrial, Inc. Stock $stag

2013 Q1 Form 10-K Financial Statement

#000104746913002284 Filed on March 06, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$STAG STAG Industrial, Inc. Stock $stag

2013 Q1 Form 10-K Financial Statement

#000104746913002284 Filed on March 06, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$STAG
STAG Industrial, Inc. Stock $stag