NATURE OF OPERATIONS, CONSOLIDATION AND PRESENTATION OF FINANCIAL STATEMENTS - Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities	$ 92,000	$ 83,900
Operating lease right of use assets	$ 93,440	$ 84,791
ASU 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities			$ 80,000
Operating lease right of use assets			$ 80,000