Leases - Supplemental Additional Information (Details)	Sep. 30, 2021	Dec. 31, 2020
Other information:
Weighted average remaining lease term - Operating leases (in years)	7 years 5 months 8 days	8 years
Weighted average remaining lease term - Finance leases (in years)	6 years 4 months 28 days	8 years 2 months 12 days
Weighted average discount rate - Operating leases	5.90%	6.10%
Weighted average discount rate - Finance leases	4.90%	5.10%