| Component: (Network and Table) | |
|---|---|
| Network | 00500 - Statement - Consolidated Statements of Cash Flows (http://www.franklinstreetproperties.com/role/StatementConsolidatedStatementsOfCashFlows)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001031316 (http://www.sec.gov/CIK) | 
| Condensed Consolidated Statements of Cash Flows | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31  | 2015-01-01 - 2015-12-31  | 2014-01-01 - 2014-12-31  | |
Condensed Consolidated Statements of Cash Flows  | |||
Cash flows from operating activities:  | |||
Net income  | 8,378,000    | 35,014,000    | 13,148,000    | 
Adjustments to reconcile net income to net cash provided by operating activities:  | |||
Depreciation and amortization expense  | |||
Amortization of above market lease  | (  | (  | |
Hedge ineffectiveness  | (  | ||
Gain (loss) on sale of properties and property held for sale, less applicable income tax  | 2,938,000    | (23,662,000)   | (940,000)   | 
Equity in losses of non-consolidated REITs  | 831,000    | 1,451,000    | 1,760,000    | 
Increase (decrease) in allowance for doubtful accounts  | (  | (  | |
Changes in operating assets and liabilities:  | |||
Restricted cash  | (  | (  | |
Tenant rent receivables  | (  | ||
Straight-line rents  | (  | (  | (  | 
Lease acquisition costs  | (  | (  | (  | 
Prepaid expenses and other assets  | (  | ||
Accounts payable, accrued expenses and other items  | |||
Accrued compensation  | (  | ||
Tenant security deposits  | |||
Payment of deferred leasing commissions  | (  | (  | (  | 
Net cash provided by operating activities  | |||
Cash flows from investing activities:  | |||
Property acquisitions  | (  | (  | |
Property improvements, fixtures and equipment  | (  | (  | (  | 
Office computers and furniture  | (  | (  | (  | 
Acquired real estate leases  | (  | (  | |
Distributions in excess of earnings from non-consolidated REITs  | |||
Investment in related party mortgage loan receivable  | (  | (  | (  | 
Repayment of related party mortgage loan receivable  | |||
Proceeds received on sales of real estate assets  | |||
Net cash used in investing activities  | (  | (  | |
Cash flows from financing activities:  | |||
Distributions to stockholders  | (  | (  | (  | 
Proceeds from equity offering  | |||
Offering costs  | (  | ||
Borrowings under bank note payable  | |||
Repayments of bank note payable  | (  | (  | (  | 
Borrowing of term loan payable  | |||
Deferred financing costs  | (  | (  | |
Net cash provided by (used in) financing activities  | (  | (  | |
Net increase (decrease) in cash and cash equivalents  | (  | (  | |
Cash and cash equivalents, beginning of year  | 18,163,000    | ||
Cash and cash equivalents, end of period  | 9,335,000    | 18,163,000    | 7,519,000    | 
Supplemental disclosure of cash flow information:  | |||
Cash paid for:  | |||
Interest  | |||
Taxes on income  | |||
Non-cash investing and financing activities:  | |||
Accrued costs for purchase of real estate assets  | |||