Goodwill (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Gross Carrying Amount	$ 633,610	$ 760,420
Dispositions and Other Reductions	(49,637)	(49,637)
Accumulated Impairment	(556,652)	(556,652)
Net	27,321	154,131
Independent Living
Goodwill [Line Items]
Gross Carrying Amount	28,141	28,141
Dispositions and Other Reductions	(820)	(820)
Accumulated Impairment	0	0
Net	27,321	27,321
Assisted Living and Memory Care
Goodwill [Line Items]
Gross Carrying Amount	605,469	605,469
Dispositions and Other Reductions	(48,817)	(48,817)
Accumulated Impairment	(556,652)	(556,652)
Net	$ 0	0
Health Care Services
Goodwill [Line Items]
Gross Carrying Amount		126,810
Dispositions and Other Reductions		0
Accumulated Impairment		0
Net		$ 126,810