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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2011
Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
Brandywine Realty Trust and Brandywine Operating Partnership, L.P.
Schedule II
Valuation and Qualifying Accounts
(in thousands)

Description
 
Balance at
Beginning
of Period
 
Additions
 
Deductions (1)
 
Balance
at End
of Period
Allowance for doubtful accounts:
 
 
 
 
 
 
 
 
Year ended December 31, 2011
 
$
15,222

 
$
928

 
$
665

 
$
15,485

Year ended December 31, 2010
 
$
16,363

 
$
763

 
$
1,904

 
$
15,222

Year ended December 31, 2009
 
$
15,474

 
$
2,596

 
$
1,707

 
$
16,363


(1)
Deductions represent amounts that the Company had fully reserved for in prior periods and pursuit of collection of such amounts was ceased during the period.