Leases - Supplemental Additional Information (Details)	Sep. 30, 2019
Other information:
Weighted average remaining lease term - Operating leases (in years)	9 years 10 months 20 days
Weighted average remaining lease term - Finance leases (in years)	2 years 11 months 26 days
Weighted average discount rate - Operating leases	4.30%
Weighted average discount rate - Finance leases	4.50%