LEASES - Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Right of use assets	$ 151,957	$ 150,985
Lease liabilities	$ 166,410	$ 166,451
Operating lease, extensible list	Financial liabilities:	Financial liabilities:
Weighted average remaining lease term (in years)	19 years 4 months 6 days	19 years 4 months 9 days
Weighted average discount rate	4.27%	4.26%