XML 15 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Cover - $ / shares
3 Months Ended
Mar. 31, 2023
Apr. 28, 2023
Entity Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2023  
Document Transition Report false  
Entity File Number 1-13087  
Entity Registrant Name BOSTON PROPERTIES, INC.  
Entity Central Index Key 0001037540  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 04-2473675  
Entity Address, Address Line One Prudential Center, 800 Boylston Street, Suite 1900  
Entity Address, City or Town Boston  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 02199-8103  
City Area Code 617  
Local Phone Number 236-3300  
Title of 12(b) Security Common Stock, par value $0.01 per share  
Entity Listing, Par Value Per Share $ 0.01  
Trading Symbol BXP  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   156,835,488
Boston Properties Limited Partnership    
Entity Information [Line Items]    
Document Type 10-Q  
Document Period End Date Mar. 31, 2023  
Entity File Number 0-50209  
Entity Registrant Name BOSTON PROPERTIES LIMITED PARTNERSHIP  
Entity Central Index Key 0001043121  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 04-3372948  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false