LEASE COMMITMENTS - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 11,662	$ 10,249
Operating cash flows from finance leases	704	534
Financing cash flows from finance leases	2,545	2,294
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	11,371	9,512
Finance leases	$ 3,127	$ 11,622