Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2023		Sep. 30, 2022		Sep. 30, 2023		Sep. 30, 2022
Revenue
Lease	$ 767,181		$ 739,255		$ 2,285,789		$ 2,179,274
Total revenue	824,283		790,523		2,444,636		2,318,757
Expenses
Rental	300,192		281,702		882,536		825,805
General and administrative	31,410		32,519		131,387		110,378
Transaction costs	751		1,650		1,970		2,146
Depreciation and amortization	207,435		190,675		618,746		551,445
Total expenses	552,714		518,994		1,672,241		1,520,810
Other income (expense)
Loss from unconsolidated joint ventures	(247,556)		(3,524)		(261,793)		(1,389)
Gains on sales of real estate	517		262,345		517		381,293
Interest and other income (loss)	20,715		3,728		48,999		6,151
Other Income - assignment fee	0		0		0		6,624
Gains (losses) from investments in securities	(925)		(1,571)		2,311		(8,549)
Unrealized gain (loss) on non-real estate investment	(51)		0		332		0
Interest expense	(147,812)		(111,846)		(424,492)		(317,216)
Net Income (loss)	(103,543)		420,661		138,269		864,861
Net (income) loss attributable to noncontrolling interests
Noncontrolling interests in property partnerships	(20,909)		(18,801)		(59,337)		(54,896)
Noncontrolling interest - common units of the Operating Partnership	12,626		(40,883)		(8,642)		(82,821)
Net income (loss) attributable to Boston Properties, Inc.	(111,826)		360,977		70,290		727,144
Net income (loss) attributable to the Company	$ (111,826)		$ 360,977		$ 70,290		$ 727,144
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)	$ (0.71)		$ 2.30		$ 0.45		$ 4.63
Weighted average number of common shares / units outstanding (in shares / units)	156,880		156,754		156,837		156,708
Diluted earnings per common share / unit attributable to the Company
Diluted Earnings: Net income, Per Share Amount (in dollars per share / unit)	$ (0.71)		$ 2.29		$ 0.45		$ 4.62
Weighted average number of common and common equivalent shares / units outstanding (in shares / units)	156,880		157,133		157,177		157,144
Boston Properties Limited Partnership
Revenue
Lease	$ 767,181		$ 739,255		$ 2,285,789		$ 2,179,274
Total revenue	824,283		790,523		2,444,636		2,318,757
Expenses
Rental	300,192		281,702		882,536		825,805
General and administrative	31,410		32,519		131,387		110,378
Transaction costs	751		1,650		1,970		2,146
Depreciation and amortization	205,679		188,969		613,446		546,271
Total expenses	550,958		517,288		1,666,941		1,515,636
Other income (expense)
Loss from unconsolidated joint ventures	(247,556)		(3,524)		(261,793)		(1,389)
Gains on sales of real estate	517		262,357		517		385,349
Interest and other income (loss)	20,715		3,728		48,999		6,151
Other Income - assignment fee	0		0		0		6,624
Gains (losses) from investments in securities	(925)		(1,571)		2,311		(8,549)
Unrealized gain (loss) on non-real estate investment	(51)		0		332		0
Interest expense	(147,812)		(111,846)		(424,492)		(317,216)
Net Income (loss)	(101,787)		422,379		143,569		874,091
Net (income) loss attributable to noncontrolling interests
Noncontrolling interests in property partnerships	(20,909)		(18,801)		(59,337)		(54,896)
Net income (loss) attributable to Boston Properties, Inc.	(122,696)		403,578		84,232		819,195
Net income (loss) attributable to the Company	$ (122,696)		$ 403,578		$ 84,232		$ 819,195
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)	$ (0.70)		$ 2.31		$ 0.48		$ 4.69
Weighted average number of common shares / units outstanding (in shares / units)	174,882		174,416		174,765		174,339
Diluted earnings per common share / unit attributable to the Company
Diluted Earnings: Net income, Per Share Amount (in dollars per share / unit)	$ (0.70)		$ 2.30		$ 0.48		$ 4.68
Weighted average number of common and common equivalent shares / units outstanding (in shares / units)	174,882		174,795		175,105		174,775
Parking and Other [Member]
Revenue
Other revenue	$ 30,428		$ 28,154		$ 81,421		$ 80,234
Parking and Other [Member] | Boston Properties Limited Partnership
Revenue
Other revenue	30,428		28,154		81,421		80,234
Hotel [Member]
Revenue
Other revenue	13,484	[1]	11,749	[1]	35,554	[2]	28,395	[2]
Expenses
Operating expense	9,020		8,548		23,852		19,832
Hotel [Member] | Boston Properties Limited Partnership
Revenue
Other revenue	13,484		11,749		35,554		28,395
Expenses
Operating expense	9,020		8,548		23,852		19,832
Real Estate, Other [Member]
Revenue
Other revenue	3,906		3,900		13,750		11,204
Expenses
Operating expense	3,906		3,900		13,750		11,204
Real Estate, Other [Member] | Boston Properties Limited Partnership
Revenue
Other revenue	3,906		3,900		13,750		11,204
Expenses
Operating expense	3,906		3,900		13,750		11,204
Management Service [Member]
Revenue
Other revenue	9,284		7,465		28,122		19,650
Management Service [Member] | Boston Properties Limited Partnership
Revenue
Other revenue	$ 9,284		$ 7,465		$ 28,122		$ 19,650

[1] Rental Revenue is equal to Total Revenue per the Company’s Consolidated Statements of Operations, less Development and Management Services Revenue and Direct Reimbursements of Payroll and Related Costs from Management Services Contracts Revenue per the Consolidated Statements of Operations.

[2] Rental Revenue is equal to Total Revenue per the Company’s Consolidated Statements of Operations, less Development and Management Services Revenue and Direct Reimbursements of Payroll and Related Costs from Management Services Contracts Revenue per the Consolidated Statements of Operations.