Document and Entity Information
Area of Land
Acres of land (in acres)
Off Market Lease Favorable Net
Acquired favorable real estate leases, net of accumulated amortization of $419 and $371, respectively
This element represents the identifiable intangible asset established upon acquisition, based on a favorable difference between the terms of an acquired lease and the current market terms for that lease at the acquisition date, less accumulated amortization and any impairment charges.
Acquired favorable real estate leases, accumulated amortization (in dollars)
The accumulated amount of amortization of the identifiable intangible asset established upon acquisition, based on a favorable difference between the terms of an acquired lease and the current market terms for that lease at the acquisition date.
Off Market Lease Favorable Accumulated Amortization
Acquired unfavorable real estate leases, accumulated amortization (in dollars)
Unfavorable Real Estate Leases, Accumulated Amortization
The amount of accumulated amortization related to unfavorable real estate leases.
Weighted Average Number of Preferred Shares Outstanding Basic and Diluted
Weighted average number of preferred shares outstanding, basic and diluted (in shares)
The average number of preferred shares or units issued and outstanding that are used in calculating basic and diluted EPS.
Earnings Per Preferred Share, Basic and Diluted
Net income (loss) per preferred share, basic and diluted (in dollars per share)
The amount of net income or loss per each share of the preferred stock outstanding, during the reporting period.
Amortization Favorable Real Estate Leases
Amortization of favorable real estate leases
The aggregate expense charged against earnings to allocate the asset associated with the acquisition of an above-market lease when the terms of the lease are favorable to the market terms for the lease at the date of acquisition in a systematic and rational manner to the periods expected to be impacted from such asset. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.
Amortization Unfavorable Real Estate Leases
Amortization of unfavorable real estate leases
The aggregate expense charged against earnings to allocate the liability associated with the acquisition of an off-market lease when the terms of the lease are unfavorable to the market terms for the lease at the date of acquisition in a systematic and rational manner to the periods expected to be impacted from such liability. As a noncash expense, this element is deducted from net income when calculating cash provided by (used in) operations using the indirect method.
Retained Earnings and Distributions in Excess of Earnings [Member]
Retained Earnings and Distributions in Excess of Earnings
The cumulative amount of the reporting entity's undistributed earnings or deficit and the excess of retained earnings (or accumulated earnings) distributions to shareholders (or partners).
Number of Stories
Number of stories in multi-tenant office tower
Represents the number of stories in the real estate property.
Amendment Description
Organization and Basis of Presentation [Table]
Represents the details pertaining to organization and its business.
Amendment Flag
Franklin Street Properties Corp [Member]
Franklin Street
Details pertaining to Franklin Street Properties Corp., which holds the sole share of the entity's common stock.
FSP Investments LLC [Member]
FSP Investments LLC
Details pertaining to FSP Investments LLC which is a wholly-owned subsidiary of Franklin Street Properties Corp.
Organization and Basis of Presentation [Line Items]
Organization and basis of presentation
Statute of limitation period for income tax returns
Income Tax Returns Limitation Period
Represents the limitation period for the income tax returns filed by the entity.
FSP Property Management LLC [Member]
FSP Property Management LLC
Details pertaining to FSP Property Management LLC which is the wholly-owned subsidiary of Franklin Street Properties Corp.
Revolving Credit Facility before Amendment [Member]
Phoenix Revolver before amendments
Represents the revolving credit facility before amendments.
Notice Period for Agreement Termination
Notice period for termination of agreement
Represents the notice period required for termination of asset management agreement with related party.
Debt Instrument Term
Debt instrument term
Represents the term of debt instrument.
Line of Credit Facility Draw Fee
Draw fee (as a percent)
The draw fee, expressed in basis points, charged for each advance under the line of credit facility.
Line of Credit Facility Draw Fee, Amount
Draw fees
Represents the draw fees incurred during the period on line of credit facility.
Related Party Transaction Purchase of Preferred Stock by Related Party
Number of shares of preferred stock purchased by the related party
Represents the number of shares of preferred stock of the entity purchased by the related party.
Related Party Transaction Purchase of Preferred Stock by Related Party Consideration Paid
Consideration paid by related party for purchase of preferred stock
Represents the consideration paid by the related party for the preferred stock of the entity.
Schedule of Dividends Paid [Table Text Block]
Schedule of distributions declared and paid by the Company
Tabular disclosure of dividend declared and paid by the entity during the reporting period.
Related Party Transactions Stock Issued to Related Party [Abstract]
Related Party Transactions-Preferred Stock
Preferred Stock Underwritten Shares Issued
Preferred stock, underwritten shares issued (in shares)
Total number of underwritten nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.
Preferred Stock Underwritten Par or Stated Value Per Share
Preferred stock, par value of underwritten shares (in dollars per share)
Face amount or stated value per share of nonredeemable preferred stock underwritten (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.
Current Fiscal Year End Date
Document Period End Date
Entity [Domain]
Summary of Significant Accounting Policies
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Current Reporting Status
Entity Filer Category
Entity Public Float
Entity Registrant Name
Entity Central Index Key
Entity Common Stock, Shares Outstanding
Accounts Payable and Accrued Expenses
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Document Fiscal Year Focus
Document Fiscal Period Focus
Legal Entity [Axis]
Document Type
Accounts Receivable, Net
Tenant rent receivables, less allowance for doubtful accounts of $4 and $4, respectively
Accounts Payable and Accrued Liabilities
Accounts payable and accrued expenses
Retained earnings and distributions in excess of earnings
Accumulated Distributions in Excess of Net Income
Additional paid-in capital
Additional Paid in Capital
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Allowance for Doubtful Accounts Receivable
Tenant rent receivables, allowance for doubtful accounts (in dollars)
Assets [Abstract]
Assets:
Assets
Total assets
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Building Improvements [Member]
Building Improvements
Building [Member]
Building
Capital Expenditures Incurred but Not yet Paid
Accrued costs for purchase of real estate assets
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents, beginning of period
Cash and cash equivalents, end of period
Cash and cash equivalents
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Disclosure of non-cash investing activities:
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Commitments and Contingencies
Commitments and Contingencies.
Common Stock
Common Stock [Member]
Common Stock, Shares, Outstanding
Common Stock, share outstanding
Common Stock, Value, Issued
Common Stock, $.01 par value, 1 share authorized, issued and outstanding
Common Stock, Shares, Issued
Common Stock, share issued
Common Stock, Par or Stated Value Per Share
Common Stock, par value (in dollars per share)
Common Stock, Shares Authorized
Common Stock, share authorized
Cost of Real Estate Revenue
Rental operating expenses
Costs and Expenses [Abstract]
Expenses:
Costs and Expenses
Total expenses
Debt Instrument, Description of Variable Rate Basis
Debt, interest rate basis
Debt Instrument, Basis Spread on Variable Rate
Basis points added to reference rate (as a percent)
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Interest Rate at Period End
Effective interest rate at end of period (as a percent)
Debt Instruments [Abstract]
Debt
Deferred Rent Receivables, Net
Step rent receivable
Deferred Costs, Leasing, Net
Deferred leasing costs, net of accumulated amortization of $1,612 and $1,341, respectively
Deferred Costs, Leasing, Accumulated Amortization
Deferred leasing costs, accumulated amortization (in dollars)
Depreciation, Depletion and Amortization, Nonproduction
Depreciation and amortization
Depreciation, Depletion and Amortization
Depreciation and amortization
Distribution declared
Dividend Declared [Member]
Distributions - preferred stockholders or $2,712 and $3,723 per preferred share for the years ended 2011 and 2010, respectively
Dividends, Preferred Stock, Cash
Dividends [Axis]
Dividends [Domain]
Due to Affiliate
Loan payable - affiliate
Earnings Per Share [Text Block]
Net Income Per Share
Net Income Per Share
Cash Distributions
Equity Component [Domain]
Financial Instruments
Fair Value of Financial Instruments, Policy [Policy Text Block]
Acquired real estate leases, accumulated amortization (in dollars)
Finite-Lived Intangible Assets, Accumulated Amortization
Acquired real estate leases, net of accumulated amortization of $1,195 and $1,059, respectively
Finite-Lived Intangible Assets, Net
Fixtures and Equipment, Gross
Furniture and fixtures
Furniture and Fixtures [Member]
Furniture and Equipment
Consolidated Statements of Operations
Income Tax Disclosure [Text Block]
Income Taxes
Income Taxes
Increase (Decrease) in Deferred Leasing Fees
Payment of deferred leasing costs
Increase (Decrease) in Due to Related Parties
Proceeds from loan payable - affiliate
Increase (Decrease) in Accounts Receivable
Tenant rent receivables
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Accounts payable and accrued expenses
Increase (Decrease) in Operating Capital [Abstract]
Changes in operating assets and liabilities:
Increase (Decrease) in Prepaid Expense and Other Assets
Prepaid expenses and other assets
Increase (Decrease) in Security Deposits
Tenant security deposits
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Interest Expense
Interest expense
Interest Paid
Cash paid for interest
Interest expense paid
Investment Income, Interest
Interest income
Investment Building and Building Improvements
Building and improvements
Land
Land
Liabilities [Abstract]
Liabilities:
Liabilities
Total liabilities
Liabilities and Equity [Abstract]
Liabilities and Stockholders' Equity:
Liabilities and Equity
Total Liabilities and Stockholders' Equity
Line of Credit Facility, Maximum Borrowing Capacity
Maximum borrowing capacity
Revolving credit facility, maximum principal amount
Line of Credit Facility, Amount Outstanding
Advances drawn and outstanding under the Phoenix Revolver
Management Fee, Amount Paid
Management fees paid
Maximum [Member]
Maximum
Minimum [Member]
Minimum
Nature of Operations [Text Block]
Organization
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Cash flows from financing activities:
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Cash flows from operating activities:
Net increase (decrease) in cash and cash equivalents
Net Cash Provided by (Used in) Continuing Operations
Net increase (decrease) in cash and cash equivalents
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Net cash used for investing activities
Net Rentable Area
Rentable square feet of office and retail space
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Net cash provided by financing activities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Cash flows from investing activities:
Net Income (Loss) Attributable to Parent
Net income (loss) attributable to preferred stockholders
Net income (loss)
Number of reportable segments
Number of Reportable Segments
Off-market Lease, Unfavorable
Acquired unfavorable real estate leases, net of accumulated amortization of $492 and $436, respectively
Operating Income (Loss)
Net income (loss) before interest income
Organization, Basis of Presentation, Real Estate and Depreciation, and Financial Instruments
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Organization, Basis of Presentation, Real Estate and Depreciation, and Financial Instruments
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]
Summary of Significant Accounting Policies
Organization
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Accounts Payable and Accrued Expenses
Payments of Ordinary Dividends, Preferred Stock and Preference Stock
Distributions to stockholders
Total Distributions
Payments to Acquire Real Estate
Purchase of real estate assets
Preferred Stock, Value, Issued
Preferred Stock, $.01 par value, 1,050 shares authorized, issued and outstanding at September 30, 2012 and December 31, 2011, aggregate liquidation preference $105,000
Preferred Stock, Shares Authorized
Preferred Stock, shares authorized
Distribution declared per preferred share (in dollars per share)
Preferred Stock, Dividends Per Share, Declared
Preferred Stock, Dividends, Per Share, Cash Paid
Distributions Per Preferred Share (in dollars per share)
Preferred Stock, shares issued
Preferred Stock, Shares Issued
Preferred Stock, Par or Stated Value Per Share
Preferred Stock, par value (in dollars per share)
Preferred Stock, aggregate liquidation preference (in dollars)
Preferred Stock, Liquidation Preference, Value
Preferred Stock, Shares Outstanding
Preferred Stock, shares outstanding
Preferred Stock
Preferred Stock [Member]
Prepaid Expense and Other Assets
Prepaid expenses and other assets
Property, Plant and Equipment, Useful Life
Estimated useful lives
Property, Plant and Equipment, Type [Domain]
Property Management Fee, Percent Fee
Percentage of gross revenues of property
Property, Plant and Equipment [Abstract]
Real Estate and Depreciation
Schedule of estimated useful lives of real estate assets
Property, Plant and Equipment [Table Text Block]
Property, Plant and Equipment, Type [Axis]
Provision for Doubtful Accounts
Decrease in bad debt reserve
Range [Axis]
Range [Domain]
SCHEDULE III Real Estate and Accumulated Depreciation
SCHEDULE III Real Estate and Accumulated Depreciation
Real Estate and Accumulated Depreciation Disclosure [Text Block]
Real Estate Investment Property, Net [Abstract]
Real estate investments, at cost:
Real Estate Investment Property, at Cost
Real estate investments, gross
Real Estate Investment Property, Net
Real estate investments, net
Less accumulated depreciation
Real Estate Investment Property, Accumulated Depreciation
Real Estate Taxes and Insurance
Real estate taxes and insurance
Real Estate Revenue, Net
Rental
Real Estate and Depreciation
Real Estate, Policy [Policy Text Block]
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
Related Party Transaction [Line Items]
Related party transactions
Related Party [Domain]
Related Party Transactions
Related Party [Axis]
Revenues
Total revenue
Revenues [Abstract]
Revenues:
Phoenix Revolver
Revolving Credit Facility [Member]
Straight Line Rent
Step rent receivable
Step rent receivable
Scenario, Unspecified [Domain]
Schedule of Related Party Transactions, by Related Party [Table]
Security Deposit Liability
Tenant security deposits
Segment Reporting
Segment Reporting Disclosure [Text Block]
Segment Reporting
Statement [Table]
Acquired unfavorable real estate leases, accumulated amortization
Scenario [Axis]
Statement [Line Items]
Statement
Consolidated Statements of Changes in Stockholders' Equity
Consolidated Statements of Cash Flows
Equity Components [Axis]
Consolidated Balance Sheets
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity:
Stockholders' Equity Attributable to Parent
Total Stockholders' Equity
Balance
Balance
Stockholders' Equity Note [Abstract]
Cash Distributions
Stockholders' Equity Note Disclosure [Text Block]
Stockholders' Equity, Period Increase (Decrease)
Subsequent Events [Text Block]
Subsequent Event
Subsequent Event
Subsequent Event Type [Domain]
Subsequent events
Subsequent Event [Line Items]
Subsequent Event Type [Axis]
Subsequent Event [Table]
Subsequent events
Subsequent Event [Member]
Supplemental Cash Flow Information [Abstract]
Supplemental disclosure of cash flow information:
Common Stock, Shares Issued and Outstanding
Common Stock, shares issued and outstanding
Number of common shares of the entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized and also includes number of shares of common stock outstanding.
Monthly Investor Service Fees
Monthly service fees payable under the agreement
Represents the monthly service fees under the agreement and to reimburse for its reasonable out-of-pocket expenses incurred in connection with the agreement.
Investor Service Fees
Service fees paid
Represents the service fees paid under the agreement.