SALES OF SUBSIDIARY AND BUSINESS UNITS - Statements of Financial Condition of Discontinued Operations (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
ASSETS
Assets of discontinued operations	$ 432,805	$ 482,494
LIABILITIES
Liabilities of discontinued operations	30,309	34,480
Banc Home Loan | Discontinued Operations, Disposed of by Sale
ASSETS
Loans held-for-sale, carried at fair value	420,449	406,338
Loans held-for-sale, carried at lower of cost or fair value	682	295
Servicing rights carried at fair value	0	37,681	$ 22,300	$ 23,000
Premises, equipment, and capital leases, net	0	2,700
Goodwill	0	2,100
Other assets	11,674	33,380
Assets of discontinued operations	432,805	482,494
LIABILITIES
Accrued expenses and other liabilities	30,309	34,480
Liabilities of discontinued operations	30,309	34,480
GNMA Loans | More than 90 Days Past Due | Banc Home Loan | Discontinued Operations, Disposed of by Sale
ASSETS
Loans held-for-sale, carried at fair value	$ 20,000	$ 16,500