LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Activity in Allowance for Loan Losses (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Activity in allowance for loan losses
Balance, beginning of year	$ 20,965	$ 23,166	$ 43,715
Provision for loan losses	(3,900)us-gaap_ProvisionForLoanAndLeaseLosses	(3,150)us-gaap_ProvisionForLoanAndLeaseLosses	48,300us-gaap_ProvisionForLoanAndLeaseLosses
Charge-offs	(3,741)	(5,727)	(74,259)
Recoveries	1,423	6,676	5,410
Balance, end of year	14,747	20,965	23,166
Commercial Real Estate [Member]
Activity in allowance for loan losses
Balance, beginning of year	13,215	13,719	29,559
Provision for loan losses	(1,674)	4,109	34,681
Charge-offs	(2,637)	(4,767)	(53,492)
Recoveries	558	154	2,971
Balance, end of year	9,462	13,215	13,719
Acquisition and Development [Member]
Activity in allowance for loan losses
Balance, beginning of year	670	3,502	9,708
Provision for loan losses	92	(6,087)	9,408
Charge-offs	(70)	(193)	(17,721)
Recoveries	5	3,448	2,107
Balance, end of year	697	670	3,502
Commercial and Industrial [Member]
Activity in allowance for loan losses
Balance, beginning of year	864	1,635	1,085
Provision for loan losses	(554)	(3,478)	1,879
Charge-offs	(270)	(132)	(1,624)
Recoveries	766	2,839	295
Balance, end of year	806	864	1,635
Municipal [Member]
Activity in allowance for loan losses
Balance, beginning of year	244	223	789
Provision for loan losses	(61)	21	(566)
Charge-offs	0	0	0
Recoveries	0	0	0
Balance, end of year	183	244	223
Commercial [Member]
Activity in allowance for loan losses
Balance, beginning of year	14,993	19,079	41,141
Provision for loan losses	(2,197)	(5,435)	45,402
Charge-offs	(2,977)	(5,092)	(72,837)
Recoveries	1,329	6,441	5,373
Balance, end of year	11,148	14,993	19,079
Residential Mortgage [Member]
Activity in allowance for loan losses
Balance, beginning of year	3,780	2,275	933
Provision for loan losses	(960)	1,845	2,602
Charge-offs	(587)	(491)	(1,279)
Recoveries	29	151	19
Balance, end of year	2,262	3,780	2,275
Installment and Other Loans [Member]
Activity in allowance for loan losses
Balance, beginning of year	124	85	75
Provision for loan losses	107	99	135
Charge-offs	(177)	(144)	(143)
Recoveries	65	84	18
Balance, end of year	119	124	85
Consumer [Member]
Activity in allowance for loan losses
Balance, beginning of year	3,904	2,360	1,008
Provision for loan losses	(853)	1,944	2,737
Charge-offs	(764)	(635)	(1,422)
Recoveries	94	235	37
Balance, end of year	2,381	3,904	2,360
Unallocated [Member]
Activity in allowance for loan losses
Balance, beginning of year	2,068	1,727	1,566
Provision for loan losses	(850)	341	161
Charge-offs	0	0	0
Recoveries	0	0	0
Balance, end of year	$ 1,218	$ 2,068	$ 1,727

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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