Leases - Summary of Lease Term and Discount Rate (Details)	Sep. 30, 2021	Dec. 31, 2020
Lessee Disclosure [Abstract]
Weighted-average remaining lease term (years), operating leases	7 years 5 months 1 day	5 years 7 months 28 days
Weighted-average remaining lease term (years), finance leases	14 years 5 months 1 day
Weighted-average discount rate, operating leases	3.40%	3.70%
Weighted-average discount rate, finance leases	3.50%