LEASES - Weighted average remaining lease terms and discount rates (Details)	Mar. 31, 2022	Dec. 31, 2021
LEASES
Operating leases, weighted average remaining lease term	11 years 3 months 18 days	11 years 3 months 18 days
Financing leases, weighted average remaining lease term	9 years 7 months 6 days	9 years 6 months
Operating leases, weighted average discount rate	5.20%	5.40%
Financing leases, weighted average discount rate	6.20%	6.40%