RESERVE FOR LOSS ON REPURCHASED LOANS - Summary of Activities in Reserve for Loss Reimbursements on Sold Loans (Detail) - Representations and Warranties Obligations and Corporate Guarantees - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Loss Contingency Accrual [Roll Forward]
Balance at beginning of period	$ 7,974	$ 9,700
Provision for loan repurchases	517	379
Utilization of reserve for loan repurchases	(373)	(298)
Balance at end of period	$ 8,118	$ 9,781

RESERVE FOR LOSS ON REPURCHASED LOANS - Summary of Activities in Reserve for Loss Reimbursements on Sold Loans (Detail) - Representations and Warranties Obligations and Corporate Guarantees - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2017

Mar. 31, 2016

Loss Contingency Accrual [Roll Forward]

Balance at beginning of period

$ 7,974

$ 9,700

Provision for loan repurchases

517

379

Utilization of reserve for loan repurchases

(373)

(298)

Balance at end of period

$ 8,118

$ 9,781