Revenue and Other Operating Income - Schedule of Revenue by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 182,659	$ 225,831	$ 526,925	$ 753,552
Restructuring expenses	1,570	1,220	1,944	16,859
Strategic Plan
Disaggregation of Revenue [Line Items]
Restructuring expenses	(66)	1,220	308	16,859
Private payer
Disaggregation of Revenue [Line Items]
Revenues	17,397	16,325	48,561	49,740
Medicare and Medicaid programs
Disaggregation of Revenue [Line Items]
Revenues	10,037	10,361	29,350	32,253
Other third-party payer programs
Disaggregation of Revenue [Line Items]
Revenues	4,626	5,016	14,413	20,150
Residential management fees
Disaggregation of Revenue [Line Items]
Revenues	9,477	11,220	27,380	37,997
Reimbursed community-level costs incurred on behalf of managed communities
Disaggregation of Revenue [Line Items]
Revenues	137,768	177,231	396,352	585,662
Other reimbursed expenses
Disaggregation of Revenue [Line Items]
Revenues	3,354	5,678	10,869	27,750
Total revenues
Disaggregation of Revenue [Line Items]
Revenues	182,659	225,831	526,925	753,552
Residential \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	168,113	210,449	483,595	701,164
Residential \| Operating Segments \| Strategic Plan
Disaggregation of Revenue [Line Items]
Restructuring expenses		813	476	12,344
Residential \| Operating Segments \| Strategic Plan \| DHC
Disaggregation of Revenue [Line Items]
Restructuring expenses	2	813		12,344
Residential \| Private payer
Disaggregation of Revenue [Line Items]
Revenues	17,263	16,032	48,192	48,935
Residential \| Medicare and Medicaid programs
Disaggregation of Revenue [Line Items]
Revenues	242	288	752	820
Residential \| Other third-party payer programs
Disaggregation of Revenue [Line Items]
Revenues	9	0	50	0
Residential \| Residential management fees
Disaggregation of Revenue [Line Items]
Revenues	9,477	11,220	27,380	37,997
Residential \| Reimbursed community-level costs incurred on behalf of managed communities
Disaggregation of Revenue [Line Items]
Revenues	137,768	177,231	396,352	585,662
Residential \| Other reimbursed expenses
Disaggregation of Revenue [Line Items]
Revenues	3,354	5,678	10,869	27,750
Residential \| Total revenues
Disaggregation of Revenue [Line Items]
Revenues	168,113	210,449	483,595	701,164
Lifestyle Services \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	14,546	15,382	43,330	52,388
Lifestyle Services \| Operating Segments \| Strategic Plan
Disaggregation of Revenue [Line Items]
Restructuring expenses		(310)		1,410
Lifestyle Services \| Private payer
Disaggregation of Revenue [Line Items]
Revenues	134	293	369	805
Lifestyle Services \| Medicare and Medicaid programs
Disaggregation of Revenue [Line Items]
Revenues	9,795	10,073	28,598	31,433
Lifestyle Services \| Other third-party payer programs
Disaggregation of Revenue [Line Items]
Revenues	4,617	5,016	14,363	20,150
Lifestyle Services \| Residential management fees
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Lifestyle Services \| Reimbursed community-level costs incurred on behalf of managed communities
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Lifestyle Services \| Other reimbursed expenses
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Lifestyle Services \| Total revenues
Disaggregation of Revenue [Line Items]
Revenues	$ 14,546	$ 15,382	$ 43,330	$ 52,388

AlerisLife Inc. 10-Q