Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
| Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,917,248 and $7,797,430 at June 30, 2025 and December 31, 2024, respectively) |
$ 28,428,074
|
$ 27,870,623
|
| Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at June 30, 2025 and December 31, 2024, respectively) |
372,839
|
372,922
|
| Right of use assets - operating leases (amounts related to VIEs of $131,751 and $140,558 at June 30, 2025 and December 31, 2024, respectively) |
325,670
|
334,767
|
| Less: accumulated depreciation (amounts related to VIEs of $(1,698,752) and $(1,628,274) at June 30, 2025 and December 31, 2024, respectively) |
(7,863,743)
|
(7,528,057)
|
| Cash and cash equivalents (amounts related to VIEs of $319,475 and $373,737 at June 30, 2025 and December 31, 2024, respectively) |
446,953
|
1,254,882
|
| Cash held in escrows (amounts related to VIEs of $4,997 and $4,979 at June 30, 2025 and December 31, 2024, respectively) |
80,888
|
80,314
|
| Tenant and other receivables, net (amounts related to VIEs of $31,572 and $20,435 at June 30, 2025 and December 31, 2024, respectively) |
109,683
|
107,453
|
| Accrued rental income, net (amounts related to VIEs of $452,950 and $435,110 at June 30, 2025 and December 31, 2024, respectively) |
1,509,347
|
1,466,220
|
| Deferred charges, net (amounts related to VIEs of $208,365 and $211,726 at June 30, 2025 and December 31, 2024, respectively) |
809,033
|
813,345
|
| Prepaid expenses and other assets (amounts related to VIEs of $18,569 and $15,036 at June 30, 2025 and December 31, 2024, respectively) |
89,624
|
70,839
|
| Mortgage notes payable, net (amounts related to VIEs of $3,284,449 and $3,282,027 at June 30, 2025 and December 31, 2024, respectively) |
4,278,788
|
4,276,609
|
| Lease liabilities - finance leases (amounts related to VIEs of $21,010 and $20,931 at June 30, 2025 and December 31, 2024, respectively) |
365,897
|
370,885
|
| Lease liabilities - operating leases (amounts related to VIEs of $163,981 and $157,691 at June 30, 2025 and December 31, 2024, respectively) |
399,174
|
392,686
|
| Accounts payable and accrued expenses (amounts related to VIEs of $144,822 and $115,808 at June 30, 2025 and December 31, 2024, respectively) |
480,158
|
401,874
|
| Other liabilities (amounts related to VIEs of $93,554 and $126,202 at June 30, 2025 and December 31, 2024, respectively) |
$ 416,838
|
$ 450,796
|
| Reedemable deferred stock units, units |
103,473
|
128,227
|
| Limited Partners' Capital Account, Units Outstanding (in units) |
156,598,336
|
|
| General Partners' Capital Account, Units Outstanding (in units) |
1,767,941
|
|
| 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 |
158,445,177
|
158,253,895
|
| Common Stock, Shares, Outstanding |
158,366,277
|
158,174,995
|
| Treasury common stock at cost, shares |
78,900
|
78,900
|
| Related party notes receivable, net |
$ 6,711
|
$ 4,947
|
| Boston Properties Limited Partnership |
|
|
| Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,917,248 and $7,797,430 at June 30, 2025 and December 31, 2024, respectively) |
28,061,966
|
27,504,358
|
| Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at June 30, 2025 and December 31, 2024, respectively) |
372,839
|
372,922
|
| Right of use assets - operating leases (amounts related to VIEs of $131,751 and $140,558 at June 30, 2025 and December 31, 2024, respectively) |
325,670
|
334,767
|
| Less: accumulated depreciation (amounts related to VIEs of $(1,698,752) and $(1,628,274) at June 30, 2025 and December 31, 2024, respectively) |
(7,730,220)
|
(7,397,882)
|
| Cash and cash equivalents (amounts related to VIEs of $319,475 and $373,737 at June 30, 2025 and December 31, 2024, respectively) |
446,953
|
1,254,882
|
| Cash held in escrows (amounts related to VIEs of $4,997 and $4,979 at June 30, 2025 and December 31, 2024, respectively) |
80,888
|
80,314
|
| Tenant and other receivables, net (amounts related to VIEs of $31,572 and $20,435 at June 30, 2025 and December 31, 2024, respectively) |
109,683
|
107,453
|
| Accrued rental income, net (amounts related to VIEs of $452,950 and $435,110 at June 30, 2025 and December 31, 2024, respectively) |
1,509,347
|
1,466,220
|
| Deferred charges, net (amounts related to VIEs of $208,365 and $211,726 at June 30, 2025 and December 31, 2024, respectively) |
809,033
|
813,345
|
| Prepaid expenses and other assets (amounts related to VIEs of $18,569 and $15,036 at June 30, 2025 and December 31, 2024, respectively) |
89,624
|
70,839
|
| Mortgage notes payable, net (amounts related to VIEs of $3,284,449 and $3,282,027 at June 30, 2025 and December 31, 2024, respectively) |
4,278,788
|
4,276,609
|
| Lease liabilities - finance leases (amounts related to VIEs of $21,010 and $20,931 at June 30, 2025 and December 31, 2024, respectively) |
365,897
|
370,885
|
| Lease liabilities - operating leases (amounts related to VIEs of $163,981 and $157,691 at June 30, 2025 and December 31, 2024, respectively) |
399,174
|
392,686
|
| Accounts payable and accrued expenses (amounts related to VIEs of $144,822 and $115,808 at June 30, 2025 and December 31, 2024, respectively) |
480,158
|
401,874
|
| Other liabilities (amounts related to VIEs of $93,554 and $126,202 at June 30, 2025 and December 31, 2024, respectively) |
$ 416,838
|
$ 450,796
|
| Reedemable deferred stock units, units |
103,473
|
128,227
|
| Limited Partners' Capital Account, Units Outstanding (in units) |
156,598,336
|
156,412,584
|
| General Partners' Capital Account, Units Outstanding (in units) |
1,767,941
|
1,762,411
|
| NonControlling Interest Redeemable Partnership Units Common Units Shares Outstanding |
15,707,557
|
15,730,882
|
| NonControlling Interest Redeemable Partnership Units Common Units Long Term Incentive Units At Redemption Value Shares Outstanding |
2,720,300
|
2,335,229
|
| Related party notes receivable, net |
$ 6,711
|
$ 4,947
|
| Variable Interest Entity, Primary Beneficiary [Member] |
|
|
| Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,917,248 and $7,797,430 at June 30, 2025 and December 31, 2024, respectively) |
7,917,248
|
7,797,430
|
| Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at June 30, 2025 and December 31, 2024, respectively) |
21,000
|
21,000
|
| Right of use assets - operating leases (amounts related to VIEs of $131,751 and $140,558 at June 30, 2025 and December 31, 2024, respectively) |
131,751
|
140,558
|
| Less: accumulated depreciation (amounts related to VIEs of $(1,698,752) and $(1,628,274) at June 30, 2025 and December 31, 2024, respectively) |
(1,698,752)
|
(1,628,274)
|
| Cash and cash equivalents (amounts related to VIEs of $319,475 and $373,737 at June 30, 2025 and December 31, 2024, respectively) |
319,475
|
373,737
|
| Cash held in escrows (amounts related to VIEs of $4,997 and $4,979 at June 30, 2025 and December 31, 2024, respectively) |
4,997
|
4,979
|
| Tenant and other receivables, net (amounts related to VIEs of $31,572 and $20,435 at June 30, 2025 and December 31, 2024, respectively) |
31,572
|
20,435
|
| Accrued rental income, net (amounts related to VIEs of $452,950 and $435,110 at June 30, 2025 and December 31, 2024, respectively) |
452,950
|
435,110
|
| Deferred charges, net (amounts related to VIEs of $208,365 and $211,726 at June 30, 2025 and December 31, 2024, respectively) |
208,365
|
211,726
|
| Prepaid expenses and other assets (amounts related to VIEs of $18,569 and $15,036 at June 30, 2025 and December 31, 2024, respectively) |
18,569
|
15,036
|
| Mortgage notes payable, net (amounts related to VIEs of $3,284,449 and $3,282,027 at June 30, 2025 and December 31, 2024, respectively) |
3,284,449
|
3,282,027
|
| Lease liabilities - finance leases (amounts related to VIEs of $21,010 and $20,931 at June 30, 2025 and December 31, 2024, respectively) |
21,010
|
20,931
|
| Lease liabilities - operating leases (amounts related to VIEs of $163,981 and $157,691 at June 30, 2025 and December 31, 2024, respectively) |
163,981
|
157,691
|
| Accounts payable and accrued expenses (amounts related to VIEs of $144,822 and $115,808 at June 30, 2025 and December 31, 2024, respectively) |
144,822
|
115,808
|
| Other liabilities (amounts related to VIEs of $93,554 and $126,202 at June 30, 2025 and December 31, 2024, respectively) |
93,554
|
126,202
|
| Variable Interest Entity, Primary Beneficiary [Member] | Boston Properties Limited Partnership |
|
|
| Real estate, at cost (amounts related to variable interest entities (“VIEs”) of $7,917,248 and $7,797,430 at June 30, 2025 and December 31, 2024, respectively) |
7,917,248
|
7,797,430
|
| Right of use assets - finance leases (amounts related to VIEs of $21,000 and $21,000 at June 30, 2025 and December 31, 2024, respectively) |
21,000
|
21,000
|
| Right of use assets - operating leases (amounts related to VIEs of $131,751 and $140,558 at June 30, 2025 and December 31, 2024, respectively) |
131,751
|
140,558
|
| Less: accumulated depreciation (amounts related to VIEs of $(1,698,752) and $(1,628,274) at June 30, 2025 and December 31, 2024, respectively) |
(1,698,752)
|
(1,628,274)
|
| Cash and cash equivalents (amounts related to VIEs of $319,475 and $373,737 at June 30, 2025 and December 31, 2024, respectively) |
319,475
|
373,737
|
| Cash held in escrows (amounts related to VIEs of $4,997 and $4,979 at June 30, 2025 and December 31, 2024, respectively) |
4,997
|
4,979
|
| Tenant and other receivables, net (amounts related to VIEs of $31,572 and $20,435 at June 30, 2025 and December 31, 2024, respectively) |
31,572
|
20,435
|
| Accrued rental income, net (amounts related to VIEs of $452,950 and $435,110 at June 30, 2025 and December 31, 2024, respectively) |
452,950
|
435,110
|
| Deferred charges, net (amounts related to VIEs of $208,365 and $211,726 at June 30, 2025 and December 31, 2024, respectively) |
208,365
|
211,726
|
| Prepaid expenses and other assets (amounts related to VIEs of $18,569 and $15,036 at June 30, 2025 and December 31, 2024, respectively) |
18,569
|
15,036
|
| Mortgage notes payable, net (amounts related to VIEs of $3,284,449 and $3,282,027 at June 30, 2025 and December 31, 2024, respectively) |
3,284,449
|
3,282,027
|
| Lease liabilities - finance leases (amounts related to VIEs of $21,010 and $20,931 at June 30, 2025 and December 31, 2024, respectively) |
21,010
|
20,931
|
| Lease liabilities - operating leases (amounts related to VIEs of $163,981 and $157,691 at June 30, 2025 and December 31, 2024, respectively) |
163,981
|
157,691
|
| Accounts payable and accrued expenses (amounts related to VIEs of $144,822 and $115,808 at June 30, 2025 and December 31, 2024, respectively) |
144,822
|
115,808
|
| Other liabilities (amounts related to VIEs of $93,554 and $126,202 at June 30, 2025 and December 31, 2024, respectively) |
$ 93,554
|
$ 126,202
|