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Consolidated Balance Sheets (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Preferred Stock, Shares Authorized | 20,000,000 | 20,000,000
Preferred Stock, Dividend Rate, Percentage | 6.90% | 6.90%
Preferred Stock, Par or Stated Value Per Share (USD per share) | $ 0.01 | $ 0.01
Preferred Stock, Shares Issued | 4,000,000 | 4,000,000
Preferred Stock, Shares Outstanding | 4,000,000 | 4,000,000
Common Stock, Par or Stated Value Per Share (USD per share) | $ 0.01 | $ 0.01
Common Stock, Shares Authorized | 400,000,000 | 400,000,000
Common Stock, Shares, Issued | 174,688,568 | 179,293,160
Common Stock, Shares, Outstanding | 174,688,568 | 179,293,160
Common Shares in Grantor Trust | 745,686 | 384,536
BRANDYWINE OPERATING PARTNERSHIP, L.P. |  |
Preferred Stock, Dividend Rate, Percentage | 6.90% | 6.90%
Preferred Stock, Shares Issued | 4,000,000 | 4,000,000
Preferred Stock, Shares Outstanding | 4,000,000 | 4,000,000
Redeemable Limited Partnership Units Issued | 1,535,102 | 1,535,102
Redeemable Limited Partnership Units Outstanding | 1,535,102 | 1,535,102
General Partners' Capital Account, Units Issued | 174,688,568 | 179,293,160
General Partners' Capital Account, Units Outstanding | 174,688,568 | 179,293,160

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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Total number of common shares of an 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. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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