LEASES - Future Operating Lease Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Maturities of lease liabilities
2020	$ 8,607
2021	8,280
2022	7,585
2023	5,995
Thereafter	324
Total	30,791
Less imputed interest	(2,635)
Total	$ 28,156
Minimum cash basis operating lease commitments
2019		$ 7,700
2020		7,789
2021		7,450
2022		6,738
2023		5,200
Thereafter		90
Total		$ 34,967