LEASES AND RELATED PARTY LEASES - Future Minimum Lease Payment Under Operating Leases, After Adoption of 842 (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Operating Leased Assets [Line Items]
2020	$ 12,396
2021	13,247
2022	14,049
2023	11,682
2024	11,356
Thereafter	92,663
Total minimum lease payments	155,393
Less: Imputed interest	45,636
Total lease liabilities	109,757
Less: Current lease liabilities	12,253
Long-term lease liabilities	97,504
Related Parties
Operating Leased Assets [Line Items]
2020	296
2021	296
2022	296
2023	296
2024	296
Thereafter	1,428
Total minimum lease payments	2,908
Third Parties
Operating Leased Assets [Line Items]
2020	12,100
2021	12,951
2022	13,753
2023	11,386
2024	11,060
Thereafter	91,235
Total minimum lease payments	$ 152,485