Concentration of Risk (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2021 facility unit_bed	Sep. 30, 2020	Sep. 30, 2021 facility state unit_bed	Sep. 30, 2020
Skilled nursing, multi-service campuses, assisted living and independent living facilities
Concentration Risk [Line Items]
Number of facilities	225		225
Ensign
Concentration Risk [Line Items]
Number of states where Ensign leases the highest concentration of properties | state			4
Ensign | Customer concentration risk | Rental income, exclusive of operating expense reimbursements
Concentration Risk [Line Items]
Concentration risk (percent)	33.00%	30.00%	32.00%	31.00%
PMG | Customer concentration risk | Rental income, exclusive of operating expense reimbursements
Concentration Risk [Line Items]
Concentration risk (percent)	15.00%	16.00%	15.00%	16.00%
Ensign | Skilled nursing, multi-service campuses, assisted living and independent living facilities
Concentration Risk [Line Items]
Number of facilities	95		95
Number of beds and units in facilities | unit_bed	10,148		10,148
PMG | Skilled nursing and campus facilities
Concentration Risk [Line Items]
Number of facilities	15		15
Number of beds and units in facilities	2,144		2,144