Revenue (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Resident fee revenue by payor source and reportable segment is as follows.

	Year Ended December 31, 2021
(in thousands)	Independent Living		Assisted Living and Memory Care		CCRCs		Health Care Services		Total
Private pay	$	473,740	$	1,521,588	$	212,981	$	601	$	2,208,910
Government reimbursement	1,798		68,133		57,362		134,083		261,376
Other third-party payor programs	—		—		34,082		39,480		73,562
Total resident fee revenue	$	475,538	$	1,589,721	$	304,425	$	174,164	$	2,543,848

	Year Ended December 31, 2020
(in thousands)	Independent Living		Assisted Living and Memory Care		CCRCs		Health Care Services		Total
Private pay	$	510,254	$	1,622,117	$	235,018	$	906	$	2,368,295
Government reimbursement	2,344		69,159		59,614		287,512		418,629
Other third-party payor programs	—		—		27,251		78,392		105,643
Total resident fee revenue	$	512,598	$	1,691,276	$	321,883	$	366,810	$	2,892,567

	Year Ended December 31, 2019
(in thousands)	Independent Living		Assisted Living and Memory Care		CCRCs		Health Care Services		Total
Private pay	$	542,112	$	1,748,364	$	281,197	$	753	$	2,572,426
Government reimbursement	2,446		67,574		81,054		357,963		509,037
Other third-party payor programs	—		—		39,924		88,544		128,468
Total resident fee revenue	$	544,558	$	1,815,938	$	402,175	$	447,260	$	3,209,931

Accounts Receivable, Allowance for Credit Loss

The following table presents the changes in allowance for credit losses on accounts receivable for the periods indicated.

	For the Years Ended December 31,
(in millions)	2021		2020		2019
Balance at beginning of period	$	9.8	$	7.8	$	7.9
Provision within facility operating expense	21.6		16.7		15.2
Write-offs	(19.2)		(16.2)		(19.5)
Recoveries and other	1.1		1.5		4.2
Balance at end of period	$	13.3	$	9.8	$	7.8