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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Dec. 31, 2024	Dec. 31, 2023
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,797,430 and $7,054,075 at December 31, 2024 and December 31, 2023, respectively)		$ 27,870,623	$ 26,749,209
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at December 31, 2024 and December 31, 2023, respectively)		372,922	401,680
Right of use assets - operating leases (amounts related to VIEs of $140,558 and $158,885 at December 31, 2024 and December 31, 2023, respectively)	[1]	334,767	324,298
Less: accumulated depreciation (amounts related to VIEs of $(1,628,274) and $(1,501,483) at December 31, 2024 and December 31, 2023, respectively)		(7,528,057)	(6,881,728)
Cash and cash equivalents (amounts related to VIEs of $373,737 and $245,317 at December 31, 2024 and December 31, 2023, respectively)		1,254,882	1,531,477
Cash held in escrows (amounts related to VIEs of $4,979 and $22,160 at December 31, 2024 and December 31, 2023, respectively)		80,314	81,090
Tenant and other receivables, net (amounts related to VIEs of $20,435 and $27,987 at December 31, 2024 and December 31, 2023, respectively)		107,453	122,407
Accrued rental income, net (amounts related to VIEs of $435,110 and $401,159 at December 31, 2024 and December 31, 2023, respectively)		1,466,220	1,355,212
Deferred charges, net (amounts related to VIEs of $211,726 and $175,383 at December 31, 2024 and December 31, 2023, respectively)		813,345	760,421
Prepaid expenses and other assets (amounts related to VIEs of $15,036 and $11,824 at December 31, 2024 and December 31, 2023, respectively)		70,839	64,230
Mortgage notes payable, net (amounts related to VIEs of $3,282,027 and $3,277,185 at December 31, 2024 and December 31, 2023, respectively)		4,276,609	4,166,379
Lease liabilities - finance leases (amounts related to VIEs of $20,931 and $20,794 at December 31, 2024 and December 31, 2023, respectively)		370,885	417,961
Lease liabilities - operating leases (amounts related to VIEs of $157,691 and $145,826 at December 31, 2024 and December 31, 2023, respectively)		392,686	350,391
Accounts payable and accrued expenses (amounts related to VIEs of $115,808 and $59,667 at December 31, 2024 and December 31, 2023, respectively)		401,874	458,329
Other liabilities (amounts related to VIEs of $126,202 and $115,275 at December 31, 2024 and December 31, 2023, respectively)		$ 450,796	$ 445,947
Reedemable deferred stock units, units		128,227	119,471
Limited Partners' Capital Account, Units Outstanding (in units)		156,412,584
General Partners' Capital Account, Units Outstanding (in units)		1,762,411
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		158,253,895	157,019,766
Common Stock, Shares, Outstanding		158,174,995	156,940,866
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 $7,797,430 and $7,054,075 at December 31, 2024 and December 31, 2023, respectively)		$ 27,504,358	$ 26,382,944
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at December 31, 2024 and December 31, 2023, respectively)		372,922	401,680
Right of use assets - operating leases (amounts related to VIEs of $140,558 and $158,885 at December 31, 2024 and December 31, 2023, respectively)	[1]	334,767	324,298
Less: accumulated depreciation (amounts related to VIEs of $(1,628,274) and $(1,501,483) at December 31, 2024 and December 31, 2023, respectively)		(7,397,882)	(6,758,361)
Cash and cash equivalents (amounts related to VIEs of $373,737 and $245,317 at December 31, 2024 and December 31, 2023, respectively)		1,254,882	1,531,477
Cash held in escrows (amounts related to VIEs of $4,979 and $22,160 at December 31, 2024 and December 31, 2023, respectively)		80,314	81,090
Tenant and other receivables, net (amounts related to VIEs of $20,435 and $27,987 at December 31, 2024 and December 31, 2023, respectively)		107,453	122,407
Accrued rental income, net (amounts related to VIEs of $435,110 and $401,159 at December 31, 2024 and December 31, 2023, respectively)		1,466,220	1,355,212
Deferred charges, net (amounts related to VIEs of $211,726 and $175,383 at December 31, 2024 and December 31, 2023, respectively)		813,345	760,421
Prepaid expenses and other assets (amounts related to VIEs of $15,036 and $11,824 at December 31, 2024 and December 31, 2023, respectively)		70,839	64,230
Mortgage notes payable, net (amounts related to VIEs of $3,282,027 and $3,277,185 at December 31, 2024 and December 31, 2023, respectively)		4,276,609	4,166,379
Lease liabilities - finance leases (amounts related to VIEs of $20,931 and $20,794 at December 31, 2024 and December 31, 2023, respectively)		370,885	417,961
Lease liabilities - operating leases (amounts related to VIEs of $157,691 and $145,826 at December 31, 2024 and December 31, 2023, respectively)		392,686	350,391
Accounts payable and accrued expenses (amounts related to VIEs of $115,808 and $59,667 at December 31, 2024 and December 31, 2023, respectively)		401,874	458,329
Other liabilities (amounts related to VIEs of $126,202 and $115,275 at December 31, 2024 and December 31, 2023, respectively)		$ 450,796	$ 445,947
Reedemable deferred stock units, units		128,227	119,471
Limited Partners' Capital Account, Units Outstanding (in units)		156,412,584	155,185,716
General Partners' Capital Account, Units Outstanding (in units)		1,762,411	1,755,150
NonControlling Interest Redeemable Partnership Units Common Units Shares Outstanding		15,730,882	16,508,277
NonControlling Interest Redeemable Partnership Units Common Units Long Term Incentive Units At Redemption Value Shares Outstanding		2,335,229	2,065,861
Variable Interest Entity, Primary Beneficiary [Member]
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,797,430 and $7,054,075 at December 31, 2024 and December 31, 2023, respectively)		$ 7,797,430	$ 7,054,075
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at December 31, 2024 and December 31, 2023, respectively)		21,000	21,000
Right of use assets - operating leases (amounts related to VIEs of $140,558 and $158,885 at December 31, 2024 and December 31, 2023, respectively)		140,558	158,885
Less: accumulated depreciation (amounts related to VIEs of $(1,628,274) and $(1,501,483) at December 31, 2024 and December 31, 2023, respectively)		(1,628,274)	(1,501,483)
Cash and cash equivalents (amounts related to VIEs of $373,737 and $245,317 at December 31, 2024 and December 31, 2023, respectively)		373,737	245,317
Cash held in escrows (amounts related to VIEs of $4,979 and $22,160 at December 31, 2024 and December 31, 2023, respectively)		4,979	22,160
Tenant and other receivables, net (amounts related to VIEs of $20,435 and $27,987 at December 31, 2024 and December 31, 2023, respectively)		20,435	27,987
Accrued rental income, net (amounts related to VIEs of $435,110 and $401,159 at December 31, 2024 and December 31, 2023, respectively)		435,110	401,159
Deferred charges, net (amounts related to VIEs of $211,726 and $175,383 at December 31, 2024 and December 31, 2023, respectively)		211,726	175,383
Prepaid expenses and other assets (amounts related to VIEs of $15,036 and $11,824 at December 31, 2024 and December 31, 2023, respectively)		15,036	11,824
Mortgage notes payable, net (amounts related to VIEs of $3,282,027 and $3,277,185 at December 31, 2024 and December 31, 2023, respectively)		3,282,027	3,277,185
Lease liabilities - finance leases (amounts related to VIEs of $20,931 and $20,794 at December 31, 2024 and December 31, 2023, respectively)		20,931	20,794
Lease liabilities - operating leases (amounts related to VIEs of $157,691 and $145,826 at December 31, 2024 and December 31, 2023, respectively)		157,691	145,826
Accounts payable and accrued expenses (amounts related to VIEs of $115,808 and $59,667 at December 31, 2024 and December 31, 2023, respectively)		115,808	59,667
Other liabilities (amounts related to VIEs of $126,202 and $115,275 at December 31, 2024 and December 31, 2023, respectively)		126,202	115,275
Variable Interest Entity, Primary Beneficiary [Member] | Boston Properties Limited Partnership
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,797,430 and $7,054,075 at December 31, 2024 and December 31, 2023, respectively)		7,797,430	7,054,075
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at December 31, 2024 and December 31, 2023, respectively)		21,000	21,000
Right of use assets - operating leases (amounts related to VIEs of $140,558 and $158,885 at December 31, 2024 and December 31, 2023, respectively)		140,558	158,885
Less: accumulated depreciation (amounts related to VIEs of $(1,628,274) and $(1,501,483) at December 31, 2024 and December 31, 2023, respectively)		(1,628,274)	(1,501,483)
Cash and cash equivalents (amounts related to VIEs of $373,737 and $245,317 at December 31, 2024 and December 31, 2023, respectively)		373,737	245,317
Cash held in escrows (amounts related to VIEs of $4,979 and $22,160 at December 31, 2024 and December 31, 2023, respectively)		4,979	22,160
Tenant and other receivables, net (amounts related to VIEs of $20,435 and $27,987 at December 31, 2024 and December 31, 2023, respectively)		20,435	27,987
Accrued rental income, net (amounts related to VIEs of $435,110 and $401,159 at December 31, 2024 and December 31, 2023, respectively)		435,110	401,159
Deferred charges, net (amounts related to VIEs of $211,726 and $175,383 at December 31, 2024 and December 31, 2023, respectively)		211,726	175,383
Prepaid expenses and other assets (amounts related to VIEs of $15,036 and $11,824 at December 31, 2024 and December 31, 2023, respectively)		15,036	11,824
Mortgage notes payable, net (amounts related to VIEs of $3,282,027 and $3,277,185 at December 31, 2024 and December 31, 2023, respectively)		3,282,027	3,277,185
Lease liabilities - finance leases (amounts related to VIEs of $20,931 and $20,794 at December 31, 2024 and December 31, 2023, respectively)		20,931	20,794
Lease liabilities - operating leases (amounts related to VIEs of $157,691 and $145,826 at December 31, 2024 and December 31, 2023, respectively)		157,691	145,826
Accounts payable and accrued expenses (amounts related to VIEs of $115,808 and $59,667 at December 31, 2024 and December 31, 2023, respectively)		115,808	59,667
Other liabilities (amounts related to VIEs of $126,202 and $115,275 at December 31, 2024 and December 31, 2023, respectively)		$ 126,202	$ 115,275
[1] See Note 4.

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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