LEASE COMMITMENTS - Maturities of Lease Liabilities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating Leases
Year 1	$ 17,442,000
Year 2	14,492,000
Year 3	10,574,000
Year 4	8,724,000
Year 5	7,315,000
Thereafter	11,605,000
Total lease payments	70,152,000
Less imputed interest	(6,786,000)
Total operating lease liabilities	63,366,000	$ 71,016,000
Finance Leases
Year 1	5,060,000
Year 2	3,994,000
Year 3	3,527,000
Year 4	3,439,000
Year 5	2,678,000
Thereafter	18,135,000
Total lease payments	36,833,000
Less imputed interest	(6,648,000)
Total finance lease liabilities	30,185,000	$ 30,025,000
Amount of additional operating leases that have not yet commenced	200,000
Amount of additional finance leases that have not yet commenced	$ 0
Term of operating and finance leases that have not yet commenced (in years)	3 years