Leases - Weighted Average Term and Discount Rate (Details)	Dec. 31, 2021	Dec. 31, 2020
Weighted-average remaining lease term (years):
Finance leases	4 years 6 months	3 years 1 month 6 days
Operating leases	4 years 2 months 12 days	4 years 9 months 18 days
Weighted-average discount rate:
Finance leases	4.30%	3.90%
Operating leases	4.00%	4.20%