LEASES Amounts Recognized in the Balance Sheet for Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Leases:
Operating lease right-of-use assets	$ 63,869	$ 67,048
Current portion of operating lease obligations	17,375	17,100
Operating lease obligations	52,207	54,436
Finance Leases:
Property, plant and equipment, net	4,779	5,156
Current portion of long-term debt and finance lease obligations	337	294
Long-term debt and finance lease obligations	$ 4,816	$ 5,069
Weighted average remaining lease term
Operating leases	6 years	6 years
Finance leases	12 years	13 years
Weighted average discount rate
Operating leases	6.70%	8.30%
Finance lease	6.20%	6.30%
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtAndCapitalLeaseObligations