Leases (Details)	3 Months Ended
	Mar. 31, 2020 lease community
Leases [Abstract]
Operating and financing leases, number of communities | community	306
Operating leases, number of communities	239
Financing leases, number of communities	67
Minimum
Lessee, Lease, Description [Line Items]
Finance and operating lease, renewal term	5 years
Maximum
Lessee, Lease, Description [Line Items]
Finance and operating lease, renewal term	20 years