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MORTGAGE BANKING ACTIVITIES - Summary of Activities in Reserve for Loss Reimbursements on Sold Loans (Detail) - Representations and Warranties Obligations and Corporate Guarantees - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Loss Contingency Accrual [Roll Forward] |  |  |
Balance at beginning of year | $ 8,303 | $ 5,427 | $ 3,485
Acquired in business combinations | 0 | 0 | 314
Provision for loan repurchases | 4,352 | 4,243 | 2,383
Change in estimates | 846 | 0 | 0
Utilization of reserve for loan repurchases | (3,801) | (1,367) | (755)
Balance at end of year | $ 9,700 | $ 8,303 | $ 5,427

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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Definition Amount of payments made reducing loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Definition Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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