SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES - New Accounting Standards - Effects of Adoption of Topic 842 on Condensed Consolidated Financial Statements (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets, net	$ 11,642		$ 4,426
Accounting Standards Update 2018-15 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, plant and equipment, net		$ (4,900)
Other Assets, Current		900
Other assets, net		$ 4,000
Retained Earnings (Deficit) | Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase (decrease) to stockholders' equity			$ 1,000