v3.26.1
Segment Reporting - Summary Information for Reportable Segments (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Revenues:          
Resident fees and services $ 634,519,000 $ 501,285,000 $ 1,244,286,000 $ 998,461,000  
Real estate revenue 39,731,000 41,218,000 80,738,000 84,645,000  
Total revenues 674,250,000 542,503,000 1,325,024,000 1,083,106,000  
Expenses:          
Facility rental expense 12,173,000 12,990,000 25,273,000 26,633,000  
Segment net operating income (loss) 137,239,000 103,228,000 262,742,000 197,765,000  
Operating Expenses          
General and administrative 19,891,000 14,943,000 37,496,000 28,098,000  
Transaction, transition and restructuring costs 2,786,000 (79,000) 4,757,000 1,758,000  
Depreciation and amortization 72,125,000 41,941,000 139,187,000 83,055,000  
Other income (expense):          
Interest expense, net (18,626,000) (22,632,000) (37,422,000) (45,577,000)  
Gain (loss) in fair value of derivative financial instruments 357,000 (629,000) 1,884,000 (1,379,000)  
Gain (loss) on dispositions of real estate investments, net 5,647,000 (2,676,000) 5,647,000 (3,035,000)  
Impairment of real estate investments (1,719,000) (12,659,000) (2,137,000) (34,365,000)  
Income (loss) from unconsolidated entities 892,000 (1,238,000) 1,684,000 (3,086,000)  
Foreign currency gain (loss) 75,000 2,742,000 (744,000) 4,158,000  
Other income, net 1,914,000 1,480,000 4,249,000 3,005,000  
Income (loss) before income taxes 30,977,000 10,811,000 54,463,000 4,575,000  
Income tax benefit (expense) 3,000 (732,000) 528,000 (1,336,000)  
Net income 30,980,000 10,079,000 54,991,000 3,239,000  
Assets by Reportable Segment          
Total assets 5,703,918,000   5,703,918,000   $ 5,426,226,000
Segments, Geographical Areas          
Total revenues 674,250,000 542,503,000 1,325,024,000 1,083,106,000  
Real estate investments, net 4,418,501,000   4,418,501,000   4,183,419,000
United States          
Revenues:          
Total revenues 672,590,000 540,854,000 1,321,697,000 1,079,903,000  
Segments, Geographical Areas          
Total revenues 672,590,000 540,854,000 1,321,697,000 1,079,903,000  
Real estate investments, net 4,376,744,000   4,376,744,000   4,140,169,000
International          
Revenues:          
Total revenues 1,660,000 1,649,000 3,327,000 3,203,000  
Segments, Geographical Areas          
Total revenues 1,660,000 1,649,000 3,327,000 3,203,000  
Real estate investments, net 41,757,000   41,757,000   43,250,000
ISHC          
Revenues:          
Resident fees and services 512,878,000 429,350,000 1,015,621,000 858,042,000  
Real estate revenue 0 0 0 0  
Total revenues 512,878,000 429,350,000 1,015,621,000 858,042,000  
Expenses:          
Compensation expense 260,203,000 217,588,000 517,576,000 436,367,000  
Controllable expenses 154,737,000 133,079,000 309,010,000 270,239,000  
Non-controllable expenses 13,027,000 10,471,000 25,604,000 22,734,000  
Facility rental expense 6,752,000 7,278,000 13,513,000 14,777,000  
Other segment items 0 0 0 0  
Segment net operating income (loss) 78,159,000 60,934,000 149,918,000 113,925,000  
Assets by Reportable Segment          
Total assets 2,705,525,000   2,705,525,000   2,686,143,000
Segments, Geographical Areas          
Total revenues 512,878,000 429,350,000 1,015,621,000 858,042,000  
SHOP          
Revenues:          
Resident fees and services 121,641,000 71,935,000 228,665,000 140,419,000  
Real estate revenue 0 0 0 0  
Total revenues 121,641,000 71,935,000 228,665,000 140,419,000  
Expenses:          
Compensation expense 53,142,000 34,982,000 100,795,000 68,988,000  
Controllable expenses 31,118,000 19,536,000 59,628,000 38,727,000  
Non-controllable expenses 5,859,000 3,351,000 10,883,000 6,876,000  
Facility rental expense 0 0 0 0  
Other segment items 0 0 0 0  
Segment net operating income (loss) 31,522,000 14,066,000 57,359,000 25,828,000  
Assets by Reportable Segment          
Total assets 1,547,014,000   1,547,014,000   1,273,714,000
Segments, Geographical Areas          
Total revenues 121,641,000 71,935,000 228,665,000 140,419,000  
OM          
Revenues:          
Resident fees and services 0 0 0 0  
Real estate revenue 29,985,000 31,254,000 60,827,000 64,448,000  
Total revenues 29,985,000 31,254,000 60,827,000 64,448,000  
Expenses:          
Compensation expense 0 0 0 0  
Controllable expenses 0 0 0 0  
Non-controllable expenses 0 0 0 0  
Facility rental expense 0 0 0 0  
Other segment items 11,493,000 12,192,000 23,617,000 24,877,000  
Segment net operating income (loss) 18,492,000 19,062,000 37,210,000 39,571,000  
Assets by Reportable Segment          
Total assets 1,029,510,000   1,029,510,000   1,048,810,000
Segments, Geographical Areas          
Total revenues 29,985,000 31,254,000 60,827,000 64,448,000  
Triple-Net Leased Properties          
Revenues:          
Resident fees and services 0 0 0 0  
Real estate revenue 9,746,000 9,964,000 19,911,000 20,197,000  
Total revenues 9,746,000 9,964,000 19,911,000 20,197,000  
Expenses:          
Compensation expense 0 0 0 0  
Controllable expenses 0 0 0 0  
Non-controllable expenses 0 0 0 0  
Facility rental expense 0 0 0 0  
Other segment items 680,000 798,000 1,656,000 1,756,000  
Segment net operating income (loss) 9,066,000 9,166,000 18,255,000 18,441,000  
Assets by Reportable Segment          
Total assets 386,540,000   386,540,000   393,952,000
Segments, Geographical Areas          
Total revenues 9,746,000 $ 9,964,000 19,911,000 $ 20,197,000  
Other          
Assets by Reportable Segment          
Total assets $ 35,329,000   $ 35,329,000   $ 23,607,000