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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Excess stock, par value | $ 0.01 | $ 0.01
Excess stock, shares authorized | 150,000,000 | 150,000,000
Excess stock, shares issued | 0 | 0
Excess stock, shares outstanding | 0 | 0
Preferred stock, par value | $ 0.01 | $ 0.01
Preferred stock, shares authorized | 50,000,000 | 50,000,000
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares authorized | 250,000,000 | 250,000,000
Common stock, shares issued | 153,683,866 | 153,658,866
Common stock, shares outstanding | 153,604,966 | 153,579,966
Treasury common stock at cost, shares | 78,900 | 78,900
Real Estate Investment Property, at Cost | $ 18,424,542 | $ 18,465,405
Construction in Progress | 857,578 | 763,935
Accumulated depreciation | 3,969,648 | 3,925,894
Cash and Cash Equivalents | 1,605,678 | 723,718
Restricted Cash and Cash Equivalents | 71,349 | 73,790
Accounts Receivable, Net | 73,759 | 97,865
Deferred Rent Receivables, Net | 767,864 | 754,883
Deferred Charges, net | 693,976 | 704,867
Prepaid expense and other assets | 136,799 | 185,118
Mortgage notes payable, net | 3,416,622 | 3,435,242
Mezzanine notes payable | 308,142 | 308,482
Outside member's notes payable | 180,000 | 180,000
Accounts Payable and Accrued Liabilities | 252,727 | 274,709
Interest Payable | 221,578 | 190,386
Other Liabilities | $ 498,290 | $ 483,601
Series B Cumulative Redeemable Preferred Stock [Member] |  |
Preferred stock, par value | $ 0.01 | $ 0.01
Preferred stock, shares authorized | 92,000 | 92,000
Series B Dividend Rate Percentage | 5.25% | 5.25%
Series B, Liquidation Preference Per Share (dollars per share) | $ 2,500.00 | $ 2,500
Series B, shares issued | 80,000 | 80,000
Series B, Shares Outstanding (in shares) | 80,000 | 80,000
Boston Properties Limited Partnership |  |
NonControlling Interest Redeemable Partnership Units Common Units Shares Outstanding | 16,092,449 | 16,097,473
NonControlling Interest Redeemable Partnership Units Common Units Long Term Incentive Units At Redemption Value Shares Outstanding | 2,065,185 | 1,831,714
General Partners' Capital Account, Units Outstanding | 1,717,626 | 1,715,092
Limited Partners' Capital Account, Units Outstanding | 151,887,340 | 151,864,874
Real Estate Investment Property, at Cost | $ 18,006,818 | $ 18,045,011
Construction in Progress | 857,578 | 763,935
Accumulated depreciation | 3,889,084 | 3,846,816
Cash and Cash Equivalents | 1,605,678 | 723,718
Restricted Cash and Cash Equivalents | 71,349 | 73,790
Accounts Receivable, Net | 73,759 | 97,865
Deferred Rent Receivables, Net | 767,864 | 754,883
Deferred Charges, net | 693,976 | 704,867
Prepaid expense and other assets | 136,799 | 185,118
Mortgage notes payable, net | 3,416,622 | 3,435,242
Mezzanine notes payable | 308,142 | 308,482
Outside member's notes payable | 180,000 | 180,000
Accounts Payable and Accrued Liabilities | 252,727 | 274,709
Interest Payable | 221,578 | 190,386
Other Liabilities | $ 498,290 | $ 483,601
Boston Properties Limited Partnership | Series B Cumulative Redeemable Preferred Stock [Member] |  |
Series B Dividend Rate Percentage | 5.25% | 5.25%
Series B, Liquidation Preference Per Share (dollars per share) | $ 2,500.00 | $ 2,500.00
Series B, shares issued | 80,000 | 80,000
Series B, Shares Outstanding (in shares) | 80,000 | 80,000
VIE |  |
Real Estate Investment Property, at Cost | $ 6,024,005 |
Construction in Progress | 486,025 |
Accumulated depreciation | (690,415) |
Cash and Cash Equivalents | 227,255 |
Restricted Cash and Cash Equivalents | 3,671 |
Accounts Receivable, Net | 24,403 |
Deferred Rent Receivables, Net | 217,148 |
Deferred Charges, net | 323,493 |
Prepaid expense and other assets | 77,995 |
Mortgage notes payable, net | 2,060,838 |
Mezzanine notes payable | 308,142 |
Outside member's notes payable | 180,000 |
Accounts Payable and Accrued Liabilities | 82,270 |
Interest Payable | 136,165 |
Other Liabilities | 205,007 |
VIE | Boston Properties Limited Partnership |  |
Real Estate Investment Property, at Cost | 5,944,607 |
Construction in Progress | 486,025 |
Accumulated depreciation | (675,124) |
Cash and Cash Equivalents | 227,255 |
Restricted Cash and Cash Equivalents | 3,671 |
Accounts Receivable, Net | 24,403 |
Deferred Rent Receivables, Net | 217,148 |
Deferred Charges, net | 323,493 |
Prepaid expense and other assets | 77,995 |
Mortgage notes payable, net | 2,060,838 |
Mezzanine notes payable | 308,142 |
Outside member's notes payable | 180,000 |
Accounts Payable and Accrued Liabilities | 82,270 |
Interest Payable | 136,165 |
Other Liabilities | $ 205,007 |

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- Definition Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations. + 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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Article 5 -Subsection 19, 20, 22 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 10 -Section F + Details
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. + 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 210.5-02.28,29) -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 29, 30 -Article 5 + Details
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