RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Jan. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liability	$ 23,868
Operating lease right-of-use asset	23,286
Cumulative effect of new accounting principle in period of adoption			$ 21,558
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liability	$ 23,900	$ 8,500
Operating lease right-of-use asset		$ 7,600
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption			$ 21,600