Lessee Arrangements - Narrative (Details)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Weighted average discount rate for operating leases	5.20%
Operating leases, lease term (up to)	7 years 10 months 24 days
Operating leases, renewal term (up to)	31 years 9 months 18 days
Operating leases, weighted average remaining lease term	15 years