Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue
Base rent	$ 520,542	$ 493,386	$ 1,024,104	$ 1,029,514
Recoveries from tenants	89,163	85,706	178,327	175,292
Parking and other	26,462	26,113	52,072	50,938
Total rental revenue	636,167	605,205	1,254,503	1,255,744
Hotel revenue	13,375	12,808	20,795	21,565
Development and management services	7,365	5,533	13,837	12,222
Total revenue	656,907	623,546	1,289,135	1,289,531
Expenses
Rental	230,454	217,938	458,741	437,110
Hotel	8,404	7,978	15,495	15,612
General and administrative	27,141	25,418	58,527	54,771
Transaction costs	299	913	333	938
Depreciation and amortization	151,919	153,175	311,124	312,623
Total expenses	418,217	405,422	844,220	821,054
Operating income	238,690	218,124	444,915	468,477
Other income (expense)
Income from unconsolidated joint ventures	3,108	2,234	6,192	4,025
Interest and other income	1,504	1,524	2,118	3,029
Gains from investments in securities	730	478	1,772	737
Gains from early extinguishments of debt	14,354	0	14,354	0
Interest expense	(95,143)	(105,003)	(190,677)	(210,312)
Income before gains on sales of real estate	163,243	117,357	278,674	265,956
Gains on sales of real estate	3,767	0	3,900	67,623
Net income	167,010	117,357	282,574	333,579
Net income attributable to noncontrolling interests
Noncontrolling interests in property partnerships	(15,203)	(6,814)	(19,627)	(17,278)
Noncontrolling interest—common units of Boston Properties Limited Partnership	(15,473)	(11,357)	(26,933)	(32,771)
Net income attributable to the Company	136,334	99,186	236,014	283,530
Preferred dividends / distributions	(2,625)	(2,589)	(5,250)	(5,207)
Net income attributable to the Company's common shareholders / unitholders	$ 133,709	$ 96,597	$ 230,764	$ 278,323
Basic earnings per common share / unit attributable to the Company's common shareholders / unitholders
Net income (in dollars per share / unit)	$ 0.87	$ 0.63	$ 1.50	$ 1.81
Weighted average number of common shares / units outstanding	154,177	153,662	154,019	153,644
Diluted earnings per common share / unit attributable to the Company's common shareholders / unitholders
Diluted Earnings: Net income, Per Share Amount (in dollars per share / unit)	$ 0.87	$ 0.63	$ 1.50	$ 1.81
Weighted average number of common and common equivalent shares / units outstanding (in shares / units)	154,331	153,860	154,273	153,889
Dividends / Distributions, Per Share / Unit, Declared	$ 0.75	$ 0.65	$ 1.50	$ 1.30
Boston Properties Limited Partnership
Revenue
Base rent	$ 520,542	$ 493,386	$ 1,024,104	$ 1,029,514
Recoveries from tenants	89,163	85,706	178,327	175,292
Parking and other	26,462	26,113	52,072	50,938
Total rental revenue	636,167	605,205	1,254,503	1,255,744
Hotel revenue	13,375	12,808	20,795	21,565
Development and management services	7,365	5,533	13,837	12,222
Total revenue	656,907	623,546	1,289,135	1,289,531
Expenses
Rental	230,454	217,938	458,741	437,110
Hotel	8,404	7,978	15,495	15,612
General and administrative	27,141	25,418	58,527	54,771
Transaction costs	299	913	333	938
Depreciation and amortization	149,834	151,191	306,892	308,652
Total expenses	416,132	403,438	839,988	817,083
Operating income	240,775	220,108	449,147	472,448
Other income (expense)
Income from unconsolidated joint ventures	3,108	2,234	6,192	4,025
Interest and other income	1,504	1,524	2,118	3,029
Gains from investments in securities	730	478	1,772	737
Gains from early extinguishments of debt	14,354	0	14,354	0
Interest expense	(95,143)	(105,003)	(190,677)	(210,312)
Income before gains on sales of real estate	165,328	119,341	282,906	269,927
Gains on sales of real estate	4,344	0	4,477	69,792
Net income	169,672	119,341	287,383	339,719
Net income attributable to noncontrolling interests
Noncontrolling interests in property partnerships	(15,203)	(6,814)	(19,627)	(17,278)
Net income attributable to the Company	154,469	112,527	267,756	322,441
Preferred dividends / distributions	(2,625)	(2,589)	(5,250)	(5,207)
Net income attributable to the Company's common shareholders / unitholders	$ 151,844	$ 109,938	$ 262,506	$ 317,234
Basic earnings per common share / unit attributable to the Company's common shareholders / unitholders
Net income (in dollars per share / unit)	$ 0.88	$ 0.64	$ 1.53	$ 1.85
Weighted average number of common shares / units outstanding	171,675	171,370	171,628	171,339
Diluted earnings per common share / unit attributable to the Company's common shareholders / unitholders
Diluted Earnings: Net income, Per Share Amount (in dollars per share / unit)	$ 0.88	$ 0.64	$ 1.53	$ 1.85
Weighted average number of common and common equivalent shares / units outstanding (in shares / units)	171,829	171,568	171,882	171,584
Dividends / Distributions, Per Share / Unit, Declared	$ 0.75	$ 0.65	$ 1.50	$ 1.30