Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,902,389 and $6,789,029 at September 30, 2023 and December 31, 2022, respectively)		$ 26,031,390	$ 25,389,663
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at September 30, 2023 and December 31, 2022, respectively)		237,532	237,510
Right of use assets - operating leases (amounts related to VIEs of $156,940 and $0 at September 30, 2023 and December 31, 2022, respectively)	[1]	322,790	167,351
Less: accumulated depreciation (amounts related to VIEs of $(1,463,949) and $(1,381,401) at September 30, 2023 and December 31, 2022, respectively)		(6,723,616)	(6,298,082)
Cash and cash equivalents (amounts related to VIEs of $240,039 and $259,658 at September 30, 2023 and December 31, 2022, respectively)		882,647	690,333
Tenant and other receivables, net (amounts related to VIEs of $36,758 and $16,521 at September 30, 2023 and December 31, 2022, respectively)		123,138	81,389
Accrued rental income, net (amounts related to VIEs of $393,227 and $367,138 at September 30, 2023 and December 31, 2022, respectively)		1,331,796	1,276,580
Deferred charges, net (amounts related to VIEs of $171,998 and $176,597 at September 30, 2023 and December 31, 2022, respectively)		692,386	733,282
Prepaid expenses and other assets (amounts related to VIEs of $46,473 and $11,647 at September 30, 2023 and December 31, 2022, respectively)		121,431	43,589
Mortgage notes payable, net (amounts related to VIEs of $3,275,974 and $3,272,368 at September 30, 2023 and December 31, 2022, respectively)		3,275,974	3,272,368
Lease liabilities - finance leases (amounts related to VIEs of $20,710 and $20,604 at September 30, 2023 and December 31, 2022, respectively)		253,178	249,335
Lease liabilities - operating leases (amounts related to VIEs of $136,332 and $0 at September 30, 2023 and December 31, 2022, respectively)		341,299	204,686
Accounts payable and accrued expenses (amounts related to VIEs of $43,696 and $29,466 at September 30, 2023 and December 31, 2022, respectively)		462,240	417,545
Other liabilities (amounts related to VIEs of $106,566 and $114,232 at September 30, 2023 and December 31, 2022, respectively)		$ 380,014	$ 450,918
Reedemable deferred stock units, units		114,124	97,853
Limited Partners' Capital Account, Units Outstanding (in units)		155,183,965
General Partners' Capital Account, Units Outstanding (in units)		1,755,215
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		157,018,080	156,836,767
Common Stock, Shares, Outstanding		156,939,180	156,757,867
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 $6,902,389 and $6,789,029 at September 30, 2023 and December 31, 2022, respectively)		$ 25,665,125	$ 25,022,149
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at September 30, 2023 and December 31, 2022, respectively)		237,532	237,510
Right of use assets - operating leases (amounts related to VIEs of $156,940 and $0 at September 30, 2023 and December 31, 2022, respectively)	[1]	322,790	167,351
Less: accumulated depreciation (amounts related to VIEs of $(1,463,949) and $(1,381,401) at September 30, 2023 and December 31, 2022, respectively)		(6,601,957)	(6,180,474)
Cash and cash equivalents (amounts related to VIEs of $240,039 and $259,658 at September 30, 2023 and December 31, 2022, respectively)		882,647	690,333
Tenant and other receivables, net (amounts related to VIEs of $36,758 and $16,521 at September 30, 2023 and December 31, 2022, respectively)		123,138	81,389
Accrued rental income, net (amounts related to VIEs of $393,227 and $367,138 at September 30, 2023 and December 31, 2022, respectively)		1,331,796	1,276,580
Deferred charges, net (amounts related to VIEs of $171,998 and $176,597 at September 30, 2023 and December 31, 2022, respectively)		692,386	733,282
Prepaid expenses and other assets (amounts related to VIEs of $46,473 and $11,647 at September 30, 2023 and December 31, 2022, respectively)		121,431	43,589
Mortgage notes payable, net (amounts related to VIEs of $3,275,974 and $3,272,368 at September 30, 2023 and December 31, 2022, respectively)		3,275,974	3,272,368
Lease liabilities - finance leases (amounts related to VIEs of $20,710 and $20,604 at September 30, 2023 and December 31, 2022, respectively)		253,178	249,335
Lease liabilities - operating leases (amounts related to VIEs of $136,332 and $0 at September 30, 2023 and December 31, 2022, respectively)		341,299	204,686
Accounts payable and accrued expenses (amounts related to VIEs of $43,696 and $29,466 at September 30, 2023 and December 31, 2022, respectively)		462,240	417,545
Other liabilities (amounts related to VIEs of $106,566 and $114,232 at September 30, 2023 and December 31, 2022, respectively)		$ 380,014	$ 450,918
Reedemable deferred stock units, units		114,124	97,853
Limited Partners' Capital Account, Units Outstanding (in units)		155,183,965	155,008,185
General Partners' Capital Account, Units Outstanding (in units)		1,755,215	1,749,682
NonControlling Interest Redeemable Partnership Units Common Units Shares Outstanding		16,509,597	16,531,172
NonControlling Interest Redeemable Partnership Units Common Units Long Term Incentive Units At Redemption Value Shares Outstanding		2,072,732	1,679,175
Variable Interest Entity, Primary Beneficiary [Member]
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,902,389 and $6,789,029 at September 30, 2023 and December 31, 2022, respectively)		$ 6,902,389	$ 6,789,029
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at September 30, 2023 and December 31, 2022, respectively)		21,000	21,000
Right of use assets - operating leases (amounts related to VIEs of $156,940 and $0 at September 30, 2023 and December 31, 2022, respectively)		156,940	0
Less: accumulated depreciation (amounts related to VIEs of $(1,463,949) and $(1,381,401) at September 30, 2023 and December 31, 2022, respectively)		(1,463,949)	(1,381,401)
Cash and cash equivalents (amounts related to VIEs of $240,039 and $259,658 at September 30, 2023 and December 31, 2022, respectively)		240,039	259,658
Tenant and other receivables, net (amounts related to VIEs of $36,758 and $16,521 at September 30, 2023 and December 31, 2022, respectively)		36,758	16,521
Accrued rental income, net (amounts related to VIEs of $393,227 and $367,138 at September 30, 2023 and December 31, 2022, respectively)		393,227	367,138
Deferred charges, net (amounts related to VIEs of $171,998 and $176,597 at September 30, 2023 and December 31, 2022, respectively)		171,998	176,597
Prepaid expenses and other assets (amounts related to VIEs of $46,473 and $11,647 at September 30, 2023 and December 31, 2022, respectively)		46,473	11,647
Mortgage notes payable, net (amounts related to VIEs of $3,275,974 and $3,272,368 at September 30, 2023 and December 31, 2022, respectively)		3,275,974	3,272,368
Lease liabilities - finance leases (amounts related to VIEs of $20,710 and $20,604 at September 30, 2023 and December 31, 2022, respectively)		20,710	20,604
Lease liabilities - operating leases (amounts related to VIEs of $136,332 and $0 at September 30, 2023 and December 31, 2022, respectively)		136,332	0
Accounts payable and accrued expenses (amounts related to VIEs of $43,696 and $29,466 at September 30, 2023 and December 31, 2022, respectively)		43,696	29,466
Other liabilities (amounts related to VIEs of $106,566 and $114,232 at September 30, 2023 and December 31, 2022, respectively)		106,566	114,232
Variable Interest Entity, Primary Beneficiary [Member] | Boston Properties Limited Partnership
Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $6,902,389 and $6,789,029 at September 30, 2023 and December 31, 2022, respectively)		6,902,389	6,789,029
Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at September 30, 2023 and December 31, 2022, respectively)		21,000	21,000
Right of use assets - operating leases (amounts related to VIEs of $156,940 and $0 at September 30, 2023 and December 31, 2022, respectively)		156,940	0
Less: accumulated depreciation (amounts related to VIEs of $(1,463,949) and $(1,381,401) at September 30, 2023 and December 31, 2022, respectively)		(1,463,949)	(1,381,401)
Cash and cash equivalents (amounts related to VIEs of $240,039 and $259,658 at September 30, 2023 and December 31, 2022, respectively)		240,039	259,658
Tenant and other receivables, net (amounts related to VIEs of $36,758 and $16,521 at September 30, 2023 and December 31, 2022, respectively)		36,758	16,521
Accrued rental income, net (amounts related to VIEs of $393,227 and $367,138 at September 30, 2023 and December 31, 2022, respectively)		393,227	367,138
Deferred charges, net (amounts related to VIEs of $171,998 and $176,597 at September 30, 2023 and December 31, 2022, respectively)		171,998	176,597
Prepaid expenses and other assets (amounts related to VIEs of $46,473 and $11,647 at September 30, 2023 and December 31, 2022, respectively)		46,473	11,647
Mortgage notes payable, net (amounts related to VIEs of $3,275,974 and $3,272,368 at September 30, 2023 and December 31, 2022, respectively)		3,275,974	3,272,368
Lease liabilities - finance leases (amounts related to VIEs of $20,710 and $20,604 at September 30, 2023 and December 31, 2022, respectively)		20,710	20,604
Lease liabilities - operating leases (amounts related to VIEs of $136,332 and $0 at September 30, 2023 and December 31, 2022, respectively)		136,332	0
Accounts payable and accrued expenses (amounts related to VIEs of $43,696 and $29,466 at September 30, 2023 and December 31, 2022, respectively)		43,696	29,466
Other liabilities (amounts related to VIEs of $106,566 and $114,232 at September 30, 2023 and December 31, 2022, respectively)		$ 106,566	$ 114,232

[1] See Note 4.