CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue	$ 3,125,487	$ 3,015,829	$ 2,825,379
Cost of Revenue [Abstract]
Facility operating expense (excluding facility depreciation and amortization of $330,664, $317,581, and $324,904, respectively)	2,183,261	2,129,800	2,083,605
General and administrative expense (including non-cash stock-based compensation expense of $14,184, $11,985, and $14,466, respectively)	185,850	178,894	168,594
Facility operating lease expense	200,587	202,410	165,294
Depreciation and amortization	357,788	342,712	347,444
Asset impairment	8,557	40,572	29,618
Loss (gain) on sale of communities, net	0	(36,296)	(73,850)
Income (loss) from operations	46,528	18,412	(42,687)
Interest income	19,162	23,146	6,935
Interest expense:
Debt	(215,525)	(209,772)	(157,869)
Financing lease obligations	(27,761)	(21,950)	(48,061)
Amortization of deferred financing costs	(9,723)	(7,696)	(6,446)
Change in fair value of derivatives	434	1,144	7,659
Gain (loss) on debt modification and extinguishment, net	(20,762)	(2,702)	(1,357)
Equity in earnings (loss) of unconsolidated ventures	0	(3,996)	(10,782)
Non-operating gain (loss) on sale of assets, net	923	1,441	595
Other non-operating income (loss)	9,376	21,687	12,114
Income (loss) before income taxes	(197,348)	(180,286)	(239,899)
Benefit (provision) for income taxes	(4,646)	(8,784)	1,559
Net income (loss)	(201,994)	(189,070)	(238,340)
Net (income) loss attributable to noncontrolling interest	59	59	(87)
Net income (loss) attributable to Brookdale Senior Living Inc. common stockholders	$ (201,935)	$ (189,011)	$ (238,427)
Basic and diluted net income (loss) per share attributable to Brookdale Senior Living Inc. common stockholders
Basic net income (loss) per share attributable to Brookdale Senior Living Inc. common stockholders (in dollars per share)	$ (0.89)	$ (0.84)	$ (1.25)
Diluted net income (loss) per share attributable to Brookdale Senior Living Inc. common stockholders (in dollars per share)	$ (0.89)	$ (0.84)	$ (1.25)
Weighted average shares used in computing basic and diluted net income (loss) per share
Weighted average shares used in computing basic net income (loss) per share (in shares)	227,525	225,209	190,463
Weighted average shares used in computing diluted net income (loss) per share (in shares)	227,525	225,209	190,463
Resident fees
Revenue	$ 2,972,050	$ 2,857,270	$ 2,585,529
Management fees
Revenue	10,521	10,161	12,020
Reimbursed costs incurred on behalf of managed communities
Revenue	142,916	139,325	147,361
Cost of Revenue [Abstract]
Costs incurred	142,916	139,325	147,361
Other operating income
Revenue	0	9,073	80,469
Facility operating expense
Cost of Revenue [Abstract]
Facility operating expense (excluding facility depreciation and amortization of $330,664, $317,581, and $324,904, respectively)	$ 2,183,261	$ 2,129,800	$ 2,083,605