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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,920,052 and $7,797,430 at March 31, 2025 and December 31, 2024, respectively) $ 28,115,423 $ 27,870,623
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at March 31, 2025 and December 31, 2024, respectively) 372,845 372,922
Right of use assets - operating leases (amounts related to VIEs of $136,123 and $140,558 at March 31, 2025 and December 31, 2024, respectively) 330,129 334,767
Less: accumulated depreciation (amounts related to VIEs of $(1,660,324) and $(1,628,274) at March 31, 2025 and December 31, 2024, respectively) (7,699,234) (7,528,057)
Cash and cash equivalents (amounts related to VIEs of $238,137 and $373,737 at March 31, 2025 and December 31, 2024, respectively) 398,126 1,254,882
Cash held in escrows (amounts related to VIEs of $5,305 and $4,979 at March 31, 2025 and December 31, 2024, respectively) 81,081 80,314
Tenant and other receivables, net (amounts related to VIEs of $29,067 and $20,435 at March 31, 2025 and December 31, 2024, respectively) 117,353 107,453
Accrued rental income, net (amounts related to VIEs of $443,953 and $435,110 at March 31, 2025 and December 31, 2024, respectively) 1,490,522 1,466,220
Deferred charges, net (amounts related to VIEs of $209,654 and $211,726 at March 31, 2025 and December 31, 2024, respectively) 806,057 813,345
Prepaid expenses and other assets (amounts related to VIEs of $46,605 and $15,036 at March 31, 2025 and December 31, 2024, respectively) 138,868 70,839
Mortgage notes payable, net (amounts related to VIEs of $3,283,239 and $3,282,027 at March 31, 2025 and December 31, 2024, respectively) 4,277,710 4,276,609
Lease liabilities - finance leases (amounts related to VIEs of $20,965 and $20,931 at March 31, 2025 and December 31, 2024, respectively) 368,379 370,885
Lease liabilities - operating leases (amounts related to VIEs of $160,805 and $157,691 at March 31, 2025 and December 31, 2024, respectively) 395,638 392,686
Accounts payable and accrued expenses (amounts related to VIEs of $123,169 and $115,808 at March 31, 2025 and December 31, 2024, respectively) 398,760 401,874
Other liabilities (amounts related to VIEs of $108,335 and $126,202 at March 31, 2025 and December 31, 2024, respectively) $ 450,165 $ 450,796
Reedemable deferred stock units, units 133,051 128,227
Limited Partners' Capital Account, Units Outstanding (in units) 156,555,905  
General Partners' Capital Account, Units Outstanding (in units) 1,767,422  
Excess stock, par value $ 0.01 $ 0.01
Excess stock, shares authorized 150,000,000 150,000,000
Excess stock, shares outstanding 0 0
Excess stock, shares issued 0 0
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 50,000,000 50,000,000
Preferred stock / units, shares / units issued (in shares / units) 0 0
Preferred stock / units, shares / units outstanding (in shares / units) 0 0
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Common stock, shares authorized 250,000,000 250,000,000
Common stock, shares issued 158,402,227 158,253,895
Common Stock, Shares, Outstanding 158,323,327 158,174,995
Treasury common stock at cost, shares 78,900 78,900
Boston Properties Limited Partnership    
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,920,052 and $7,797,430 at March 31, 2025 and December 31, 2024, respectively) $ 27,749,158 $ 27,504,358
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at March 31, 2025 and December 31, 2024, respectively) 372,845 372,922
Right of use assets - operating leases (amounts related to VIEs of $136,123 and $140,558 at March 31, 2025 and December 31, 2024, respectively) 330,129 334,767
Less: accumulated depreciation (amounts related to VIEs of $(1,660,324) and $(1,628,274) at March 31, 2025 and December 31, 2024, respectively) (7,567,356) (7,397,882)
Cash and cash equivalents (amounts related to VIEs of $238,137 and $373,737 at March 31, 2025 and December 31, 2024, respectively) 398,126 1,254,882
Cash held in escrows (amounts related to VIEs of $5,305 and $4,979 at March 31, 2025 and December 31, 2024, respectively) 81,081 80,314
Tenant and other receivables, net (amounts related to VIEs of $29,067 and $20,435 at March 31, 2025 and December 31, 2024, respectively) 117,353 107,453
Accrued rental income, net (amounts related to VIEs of $443,953 and $435,110 at March 31, 2025 and December 31, 2024, respectively) 1,490,522 1,466,220
Deferred charges, net (amounts related to VIEs of $209,654 and $211,726 at March 31, 2025 and December 31, 2024, respectively) 806,057 813,345
Prepaid expenses and other assets (amounts related to VIEs of $46,605 and $15,036 at March 31, 2025 and December 31, 2024, respectively) 138,868 70,839
Mortgage notes payable, net (amounts related to VIEs of $3,283,239 and $3,282,027 at March 31, 2025 and December 31, 2024, respectively) 4,277,710 4,276,609
Lease liabilities - finance leases (amounts related to VIEs of $20,965 and $20,931 at March 31, 2025 and December 31, 2024, respectively) 368,379 370,885
Lease liabilities - operating leases (amounts related to VIEs of $160,805 and $157,691 at March 31, 2025 and December 31, 2024, respectively) 395,638 392,686
Accounts payable and accrued expenses (amounts related to VIEs of $123,169 and $115,808 at March 31, 2025 and December 31, 2024, respectively) 398,760 401,874
Other liabilities (amounts related to VIEs of $108,335 and $126,202 at March 31, 2025 and December 31, 2024, respectively) $ 450,165 $ 450,796
Reedemable deferred stock units, units 133,051 128,227
Limited Partners' Capital Account, Units Outstanding (in units) 156,555,905 156,412,584
General Partners' Capital Account, Units Outstanding (in units) 1,767,422 1,762,411
NonControlling Interest Redeemable Partnership Units Common Units Shares Outstanding 15,624,856 15,730,882
NonControlling Interest Redeemable Partnership Units Common Units Long Term Incentive Units At Redemption Value Shares Outstanding 2,794,004 2,335,229
Variable Interest Entity, Primary Beneficiary [Member]    
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,920,052 and $7,797,430 at March 31, 2025 and December 31, 2024, respectively) $ 7,920,052 $ 7,797,430
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at March 31, 2025 and December 31, 2024, respectively) 21,000 21,000
Right of use assets - operating leases (amounts related to VIEs of $136,123 and $140,558 at March 31, 2025 and December 31, 2024, respectively) 136,123 140,558
Less: accumulated depreciation (amounts related to VIEs of $(1,660,324) and $(1,628,274) at March 31, 2025 and December 31, 2024, respectively) (1,660,324) (1,628,274)
Cash and cash equivalents (amounts related to VIEs of $238,137 and $373,737 at March 31, 2025 and December 31, 2024, respectively) 238,137 373,737
Cash held in escrows (amounts related to VIEs of $5,305 and $4,979 at March 31, 2025 and December 31, 2024, respectively) 5,305 4,979
Tenant and other receivables, net (amounts related to VIEs of $29,067 and $20,435 at March 31, 2025 and December 31, 2024, respectively) 29,067 20,435
Accrued rental income, net (amounts related to VIEs of $443,953 and $435,110 at March 31, 2025 and December 31, 2024, respectively) 443,953 435,110
Deferred charges, net (amounts related to VIEs of $209,654 and $211,726 at March 31, 2025 and December 31, 2024, respectively) 209,654 211,726
Prepaid expenses and other assets (amounts related to VIEs of $46,605 and $15,036 at March 31, 2025 and December 31, 2024, respectively) 46,605 15,036
Mortgage notes payable, net (amounts related to VIEs of $3,283,239 and $3,282,027 at March 31, 2025 and December 31, 2024, respectively) 3,283,239 3,282,027
Lease liabilities - finance leases (amounts related to VIEs of $20,965 and $20,931 at March 31, 2025 and December 31, 2024, respectively) 20,965 20,931
Lease liabilities - operating leases (amounts related to VIEs of $160,805 and $157,691 at March 31, 2025 and December 31, 2024, respectively) 160,805 157,691
Accounts payable and accrued expenses (amounts related to VIEs of $123,169 and $115,808 at March 31, 2025 and December 31, 2024, respectively) 123,169 115,808
Other liabilities (amounts related to VIEs of $108,335 and $126,202 at March 31, 2025 and December 31, 2024, respectively) 108,335 126,202
Variable Interest Entity, Primary Beneficiary [Member] | Boston Properties Limited Partnership    
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,920,052 and $7,797,430 at March 31, 2025 and December 31, 2024, respectively) 7,920,052 7,797,430
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at March 31, 2025 and December 31, 2024, respectively) 21,000 21,000
Right of use assets - operating leases (amounts related to VIEs of $136,123 and $140,558 at March 31, 2025 and December 31, 2024, respectively) 136,123 140,558
Less: accumulated depreciation (amounts related to VIEs of $(1,660,324) and $(1,628,274) at March 31, 2025 and December 31, 2024, respectively) (1,660,324) (1,628,274)
Cash and cash equivalents (amounts related to VIEs of $238,137 and $373,737 at March 31, 2025 and December 31, 2024, respectively) 238,137 373,737
Cash held in escrows (amounts related to VIEs of $5,305 and $4,979 at March 31, 2025 and December 31, 2024, respectively) 5,305 4,979
Tenant and other receivables, net (amounts related to VIEs of $29,067 and $20,435 at March 31, 2025 and December 31, 2024, respectively) 29,067 20,435
Accrued rental income, net (amounts related to VIEs of $443,953 and $435,110 at March 31, 2025 and December 31, 2024, respectively) 443,953 435,110
Deferred charges, net (amounts related to VIEs of $209,654 and $211,726 at March 31, 2025 and December 31, 2024, respectively) 209,654 211,726
Prepaid expenses and other assets (amounts related to VIEs of $46,605 and $15,036 at March 31, 2025 and December 31, 2024, respectively) 46,605 15,036
Mortgage notes payable, net (amounts related to VIEs of $3,283,239 and $3,282,027 at March 31, 2025 and December 31, 2024, respectively) 3,283,239 3,282,027
Lease liabilities - finance leases (amounts related to VIEs of $20,965 and $20,931 at March 31, 2025 and December 31, 2024, respectively) 20,965 20,931
Lease liabilities - operating leases (amounts related to VIEs of $160,805 and $157,691 at March 31, 2025 and December 31, 2024, respectively) 160,805 157,691
Accounts payable and accrued expenses (amounts related to VIEs of $123,169 and $115,808 at March 31, 2025 and December 31, 2024, respectively) 123,169 115,808
Other liabilities (amounts related to VIEs of $108,335 and $126,202 at March 31, 2025 and December 31, 2024, respectively) $ 108,335 $ 126,202