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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Fair value of financial and nonfinancial obligations.

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FAIR VALUE MEASUREMENTS - Summary of Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets
Loans held for sale	$ 951,829	$ 1,858,358
Pledged securities	97,859	84,850	$ 72,190	$ 67,719
Derivative assets	10,357	61,824
Liabilities
Derivative liabilities	1,850	4,396
Recurring
Assets
Loans held for sale	951,829	1,858,358
Pledged securities	97,859	84,850
Derivative assets	10,357	61,824
Total financial assets	1,060,045	2,005,032
Liabilities
Derivative liabilities	1,850	4,396
Total financial liabilities	1,850	4,396
Level 1 \| Recurring
Assets
Pledged securities	97,859	84,850
Total financial assets	97,859	84,850
Level 2 \| Recurring
Assets
Loans held for sale	951,829	1,858,358
Total financial assets	951,829	1,858,358
Level 3 \| Recurring
Assets
Derivative assets	10,357	61,824
Total financial assets	10,357	61,824
Liabilities
Derivative liabilities	1,850	4,396
Total financial liabilities	$ 1,850	$ 4,396