SALE OF BUSINESS AND ASSETS AND LIABILITIES HELD FOR SALE - Assets and Liabilities Held-for-sale (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total assets held for sale	$ 26,557	$ 0
Total liabilities held for sale	8,736	$ 0
Financial Services Business | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net	6,586
Prepaid expenses and other current assets	2,209
Premises and equipment, net	4,073
Goodwill	2,378
Intangible assets, net	10,846
Other assets	465
Total assets held for sale	26,557
Accounts payable and accrued expenses	4,680
Other current liabilities	1,661
Other non-current liabilities	2,395
Total liabilities held for sale	$ 8,736