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Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue
Lease	$ 3,176,805	$ 3,054,673	$ 2,918,368
Total revenue	3,407,719	3,273,569	3,108,581
Expenses
Rental	1,286,838	1,183,947	1,108,070
General and administrative	159,983	170,158	146,378
Transaction costs	1,597	4,313	2,905
Depreciation and amortization	887,191	830,813	749,775
Total expenses	2,387,385	2,239,227	2,050,056
Other income (expense)
Loss from unconsolidated joint ventures	(343,177)	(239,543)	(59,840)
Gains on sales of real estate	602	517	437,019
Gain on sales-type lease	0	0	10,058
Interest and other income (loss)	60,199	69,964	11,940
Other Income - assignment fee	0	0	6,624
Gains (losses) from investments in securities	4,416	5,556	(6,453)
Losses from interest rate contracts	0	(79)	0
Unrealized gain (loss) on non-real estate investments	546	239	(150)
Impairment loss	(13,615)	0	0
Interest expense	(645,117)	(579,572)	(437,139)
Net Income	84,188	291,424	1,020,584
Net income attributable to noncontrolling interests
Noncontrolling interests in property partnerships	(67,516)	(78,661)	(74,857)
Noncontrolling interest - common units of the Operating Partnership	(2,400)	(22,548)	(96,780)
Net Income Attributable to the Company	14,272	190,215	848,947
Net income attributable to the Company	$ 14,272	$ 190,215	$ 848,947
Basic earnings per common share / unit attributable to the Company
Earnings Per Share After Allocation of Undistributed Earnings to Participating Securities Basic (dollars per share)	$ 0.09	$ 1.21	$ 5.41
Weighted average number of common shares / units outstanding (in shares / units)	157,468	156,863	156,726
Diluted earnings per common share / unit attributable to the Company
Diluted Earnings: Net income, Per Share Amount (in dollars per share / unit)	$ 0.09	$ 1.21	$ 5.40
Weighted average number of common and common equivalent shares / units outstanding (in shares / units)	157,793	157,201	157,137
Boston Properties Limited Partnership
Revenue
Lease	$ 3,176,805	$ 3,054,673	$ 2,918,368
Total revenue	3,407,719	3,273,569	3,108,581
Expenses
Rental	1,286,838	1,183,947	1,108,070
General and administrative	159,983	170,158	146,378
Transaction costs	1,597	4,313	2,905
Depreciation and amortization	880,383	823,805	742,293
Total expenses	2,380,577	2,232,219	2,042,574
Other income (expense)
Loss from unconsolidated joint ventures	(343,177)	(239,543)	(59,840)
Gains on sales of real estate	602	517	441,075
Gain on sales-type lease	0	0	10,058
Interest and other income (loss)	60,199	69,964	11,940
Other Income - assignment fee	0	0	6,624
Gains (losses) from investments in securities	4,416	5,556	(6,453)
Losses from interest rate contracts	0	(79)	0
Unrealized gain (loss) on non-real estate investments	546	239	(150)
Impairment loss	(13,615)	0	0
Interest expense	(645,117)	(579,572)	(437,139)
Net Income	90,996	298,432	1,032,122
Net income attributable to noncontrolling interests
Noncontrolling interests in property partnerships	(67,516)	(78,661)	(74,857)
Net Income Attributable to the Company	23,480	219,771	957,265
Net income attributable to the Company	$ 23,480	$ 219,771	$ 957,265
Basic earnings per common share / unit attributable to the Company
Earnings Per Share After Allocation of Undistributed Earnings to Participating Securities Basic (dollars per share)	$ 0.13	$ 1.26	$ 5.48
Weighted average number of common shares / units outstanding (in shares / units)	175,390	174,796	174,360
Diluted earnings per common share / unit attributable to the Company
Diluted Earnings: Net income, Per Share Amount (in dollars per share / unit)	$ 0.13	$ 1.25	$ 5.47
Weighted average number of common and common equivalent shares / units outstanding (in shares / units)	175,715	175,134	174,771
Parking and Other [Member]
Revenue
Other revenue	$ 135,142	$ 112,918	$ 107,225
Parking and Other [Member] | Boston Properties Limited Partnership
Revenue
Other revenue	135,142	112,918	107,225
Hotel [Member]
Revenue
Other revenue	51,224	47,357	39,482
Expenses
Operating expense	35,288	32,225	27,478
Hotel [Member] | Boston Properties Limited Partnership
Revenue
Other revenue	51,224	47,357	39,482
Expenses
Operating expense	35,288	32,225	27,478
Management Service [Member]
Revenue
Other revenue	28,060	40,850	28,056
Management Service [Member] | Boston Properties Limited Partnership
Revenue
Other revenue	28,060	40,850	28,056
Real Estate, Other [Member]
Revenue
Other revenue	16,488	17,771	15,450
Expenses
Operating expense	16,488	17,771	15,450
Real Estate, Other [Member] | Boston Properties Limited Partnership
Revenue
Other revenue	16,488	17,771	15,450
Expenses
Operating expense	$ 16,488	$ 17,771	$ 15,450

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