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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
General Partners' Capital Account, Units Outstanding (in units) | 1,717,743 |
Limited Partners' Capital Account, Units Outstanding (in units) | 152,072,432 |
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 | 153,869,075 | 153,658,866
Common stock, shares outstanding | 153,790,175 | 153,579,966
Treasury common stock at cost, shares | 78,900 | 78,900
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,760,078 at December 31, 2016) | $ 20,147,263 | $ 19,481,535
Less: accumulated depreciation (amounts related to VIEs of ($758,640) at December 31, 2016) | (4,222,235) | (3,925,894)
Cash and cash equivalents (amounts related to VIEs of $253,999 at December 31, 2016) | 356,914 | 723,718
Cash held in escrows (amounts related to VIEs of $4,955 at December 31, 2016) | 63,174 | 73,790
Tenant and other receivables (amounts related to VIEs of $23,525 at December 31, 2016) | 92,548 | 97,865
Accrued rental income (amounts related to VIEs of $224,185 at December 31, 2016) | 799,138 | 754,883
Deferred charges, net (amounts related to VIEs of $290,436 at December 31, 2016) | 686,163 | 704,867
Prepaid expenses and other assets (amounts related to VIEs of $42,718 at December 31, 2016) | 129,666 | 185,118
Mortgage notes payable, net (amounts related to VIEs of $2,018,483 at December 31, 2016) | 2,063,087 | 3,435,242
Mezzanine notes payable (amounts related to VIEs of $307,093 at December 31, 2016) | 307,093 | 308,482
Accounts Payable and Accrued Liabilities | 298,524 | 274,709
Accrued interest payable (amounts related to VIEs of $162,226 at December 31, 2016) | 243,933 | 190,386
Other liabilities (amounts related to VIEs of $175,146 at December 31, 2016) | $ 450,821 | $ 483,601
Series B Cumulative Redeemable Preferred Stock / Unit [Member] |  |
Preferred stock, par value | $ 0.01 | $ 0
Preferred stock, shares authorized | 92,000 | 92,000
Series B Dividend Rate Percentage | 5.25% | 5.25%
Preferred stock / units, shares / units issued (in shares / units) | 80,000 | 80,000
Series B Liquidation Preference Per Share/ Unit | $ 2,500.00 | $ 2,500
Preferred stock / units, shares / units outstanding (in shares / units) | 80,000 | 80,000
Boston Properties Limited Partnership |  |
Redeemable Partnership Units Series Four Preferred Units Shares Outstanding ( in units) | 0 | 0
Redeemable Partnership Units Common Units Shares Outstanding (in units) | 17,079,511 | 16,097,473
Redeemable Partnership Units Common Units Long Term Incentive Units At Redemption Value Units Outstanding (in units) | 904,588 | 1,831,714
General Partners' Capital Account, Units Outstanding (in units) | 1,717,743 | 1,715,092
Limited Partners' Capital Account, Units Outstanding (in units) | 152,072,432 | 151,864,874
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,760,078 at December 31, 2016) | $ 19,733,872 | $ 19,061,141
Less: accumulated depreciation (amounts related to VIEs of ($758,640) at December 31, 2016) | (4,136,364) | (3,846,816)
Cash and cash equivalents (amounts related to VIEs of $253,999 at December 31, 2016) | 356,914 | 723,718
Cash held in escrows (amounts related to VIEs of $4,955 at December 31, 2016) | 63,174 | 73,790
Tenant and other receivables (amounts related to VIEs of $23,525 at December 31, 2016) | 92,548 | 97,865
Accrued rental income (amounts related to VIEs of $224,185 at December 31, 2016) | 799,138 | 754,883
Deferred charges, net (amounts related to VIEs of $290,436 at December 31, 2016) | 686,163 | 704,867
Prepaid expenses and other assets (amounts related to VIEs of $42,718 at December 31, 2016) | 129,666 | 185,118
Mortgage notes payable, net (amounts related to VIEs of $2,018,483 at December 31, 2016) | 2,063,087 | 3,435,242
Mezzanine notes payable (amounts related to VIEs of $307,093 at December 31, 2016) | 307,093 | 308,482
Accounts Payable and Accrued Liabilities | 298,524 | 274,709
Accrued interest payable (amounts related to VIEs of $162,226 at December 31, 2016) | 243,933 | 190,386
Other liabilities (amounts related to VIEs of $175,146 at December 31, 2016) | $ 450,821 | $ 483,601
Boston Properties Limited Partnership | Series B Cumulative Redeemable Preferred Stock / Unit [Member] |  |
Series B Dividend Rate Percentage | 5.25% | 5.25%
Preferred stock / units, shares / units issued (in shares / units) | 80,000 | 80,000
Series B Liquidation Preference Per Share/ Unit | $ 2,500 | $ 2,500
Preferred stock / units, shares / units outstanding (in shares / units) | 80,000 | 80,000
Variable Interest Entity, Primary Beneficiary [Member] |  |
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,760,078 at December 31, 2016) | $ 6,760,078 |
Less: accumulated depreciation (amounts related to VIEs of ($758,640) at December 31, 2016) | (758,640) |
Cash and cash equivalents (amounts related to VIEs of $253,999 at December 31, 2016) | 253,999 |
Cash held in escrows (amounts related to VIEs of $4,955 at December 31, 2016) | 4,955 |
Tenant and other receivables (amounts related to VIEs of $23,525 at December 31, 2016) | 23,525 |
Accrued rental income (amounts related to VIEs of $224,185 at December 31, 2016) | 224,185 |
Deferred charges, net (amounts related to VIEs of $290,436 at December 31, 2016) | 290,436 |
Prepaid expenses and other assets (amounts related to VIEs of $42,718 at December 31, 2016) | 42,718 |
Mortgage notes payable, net (amounts related to VIEs of $2,018,483 at December 31, 2016) | 2,018,483 |
Mezzanine notes payable (amounts related to VIEs of $307,093 at December 31, 2016) | 307,093 |
Outside member's notes payable | 180,000 |
Accounts Payable and Accrued Liabilities | 110,457 |
Accrued interest payable (amounts related to VIEs of $162,226 at December 31, 2016) | 162,226 |
Other liabilities (amounts related to VIEs of $175,146 at December 31, 2016) | 175,146 |
Variable Interest Entity, Primary Beneficiary [Member] | Boston Properties Limited Partnership |  |
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,760,078 at December 31, 2016) | 6,760,078 |
Less: accumulated depreciation (amounts related to VIEs of ($758,640) at December 31, 2016) | 758,640 |
Cash and cash equivalents (amounts related to VIEs of $253,999 at December 31, 2016) | 253,999 |
Cash held in escrows (amounts related to VIEs of $4,955 at December 31, 2016) | 4,955 |
Tenant and other receivables (amounts related to VIEs of $23,525 at December 31, 2016) | 23,525 |
Accrued rental income (amounts related to VIEs of $224,185 at December 31, 2016) | 224,185 |
Deferred charges, net (amounts related to VIEs of $290,436 at December 31, 2016) | 290,436 |
Prepaid expenses and other assets (amounts related to VIEs of $42,718 at December 31, 2016) | 42,718 |
Mortgage notes payable, net (amounts related to VIEs of $2,018,483 at December 31, 2016) | 2,018,483 |
Mezzanine notes payable (amounts related to VIEs of $307,093 at December 31, 2016) | 307,093 |
Outside member's notes payable | 180,000 |
Accounts Payable and Accrued Liabilities | 110,457 |
Accrued interest payable (amounts related to VIEs of $162,226 at December 31, 2016) | 162,226 |
Other liabilities (amounts related to VIEs of $175,146 at December 31, 2016) | $ 175,146 |

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