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	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Assets
Loans held for sale	$ 3,275,761	$ 1,858,358
Pledged securities	95,102	84,850	$ 81,933	$ 72,190
Derivative assets	43,853	61,824
Liabilities
Derivative liabilities	175	4,396
Recurring
Assets
Loans held for sale	3,275,761	1,858,358
Pledged securities	95,102	84,850
Derivative assets	43,853	61,824
Total financial assets	3,414,716	2,005,032
Liabilities
Derivative liabilities	175	4,396
Total financial liabilities	175	4,396
Level 1 \| Recurring
Assets
Pledged securities	95,102	84,850
Total financial assets	95,102	84,850
Level 2 \| Recurring
Assets
Loans held for sale	3,275,761	1,858,358
Total financial assets	3,275,761	1,858,358
Level 3 \| Recurring
Assets
Derivative assets	43,853	61,824
Total financial assets	43,853	61,824
Liabilities
Derivative liabilities	175	4,396
Total financial liabilities	$ 175	$ 4,396