LEASES - Narrative (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Mar. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset		$ 9,421	$ 0
Total operating lease liabilities		$ 12,642
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset	$ 10,300
Total operating lease liabilities	13,500
Deferred rent liabilities	$ 3,200
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Remaining lease term	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Remaining lease term	6 years