FAIR VALUE MEASUREMENTS - Schedule of Carrying Amounts and the Fair Values of the Company's Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financial assets:
Cash and cash equivalents	$ 90,058	$ 191,218	$ 118,756	$ 136,988
Restricted cash	20,821	6,677	9,861	5,306
Pledged securities	116,331	97,859	$ 84,850	$ 72,190
Loans held for sale	1,074,348	951,829
Loans held for investment, net	497,291	66,510
Derivative assets	35,536	10,357
Financial liabilities:
Derivative liabilities	32,697	1,850
Warehouse notes payable	1,161,382	937,769
Note payable	296,010	163,858
Carrying Amount
Financial assets:
Cash and cash equivalents	90,058	191,218
Restricted cash	20,821	6,677
Pledged securities	116,331	97,859
Loans held for sale	1,074,348	951,829
Loans held for investment, net	497,291	66,510
Derivative assets	35,536	10,357
Total financial assets	1,834,385	1,324,450
Financial liabilities:
Derivative liabilities	32,697	1,850
Secured borrowings	70,052
Warehouse notes payable	1,161,382	937,769
Note payable	296,010	163,858
Total financial liabilities	1,560,141	1,103,477
Fair Value
Financial assets:
Cash and cash equivalents	90,058	191,218
Restricted cash	20,821	6,677
Pledged securities	116,331	97,859
Loans held for sale	1,074,348	951,829
Loans held for investment, net	503,549	66,963
Derivative assets	35,536	10,357
Total financial assets	1,840,643	1,324,903
Financial liabilities:
Derivative liabilities	32,697	1,850
Secured borrowings	70,052
Warehouse notes payable	1,162,791	939,500
Note payable	300,000	166,223
Total financial liabilities	$ 1,565,540	$ 1,107,573

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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