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Document and Entity Information Document
Jun. 17, 2021
Apr. 26, 2021
Cover [Abstract]    
Document Type 8-K  
Document Period End Date Jun. 17, 2021  
Entity Incorporation, State or Country Code DE  
Entity File Number 001-32641  
Entity Tax Identification Number 20-3068069  
Entity Address, Address Line One 111 Westwood Place,  
Entity Address, Address Line Two Suite 400,  
Entity Address, City or Town Brentwood,  
Entity Address, State or Province TN  
Entity Address, Postal Zip Code 37027  
City Area Code (615)  
Local Phone Number 221-2250  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Title of 12(b) Security Common Stock, $0.01 Par Value Per Share  
Trading Symbol BKD  
Security Exchange Name NYSE  
Entity Emerging Growth Company false  
Entity Registrant Name Brookdale Senior Living Inc.  
Entity Central Index Key   0001332349
Amendment Flag   false