INTANGIBLE ASSETS - Annual Amortization of Intangible Assets, Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets
2021	$ 16,190
2022	10,354
2023	7,564
2024	5,214
2025	4,027
Thereafter	5,221
Intangible assets, net	48,570	$ 84,851
Liabilities
2021	4,902
2022	2,723
2023	1,651
2024	1,425
2025	1,148
Thereafter	6,599
Acquired lease intangibles, net	$ 18,448	$ 22,263