LOAN PORTFOLIO - Loan Modifications are Considered TDRs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014 numberofcontracts	Sep. 30, 2013 numberofcontracts	Sep. 30, 2014 numberofcontracts	Sep. 30, 2013 numberofcontracts
Financing Receivable Modifications [Line Items]
Number of Contracts	675	607	1,802	1,787
Pre-Modification Outstanding Recorded Investment	$ 95,169	$ 46,130	$ 151,068	$ 136,092
Post-Modification Outstanding Recorded Investment	94,864	46,089	149,609	110,687
Non Fha Va Residential Mortgage Loans [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	88	140	226	253
Pre-Modification Outstanding Recorded Investment	13,050	29,530	31,776	42,628
Post-Modification Outstanding Recorded Investment	12,856	29,984	30,831	43,106
Commercial Mortgage Loans [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	1	15	5	16
Pre-Modification Outstanding Recorded Investment	589	4,481	1,833	4,972
Post-Modification Outstanding Recorded Investment	589	4,586	1,836	5,077
Commercial And Industrial Loan [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	4	13	16	21
Pre-Modification Outstanding Recorded Investment	76,110	8,528	105,188	76,579
Post-Modification Outstanding Recorded Investment	76,182	7,925	104,926	50,588
Consumer Auto Loans [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	214	149	423	434
Pre-Modification Outstanding Recorded Investment	3,189	2,006	6,202	5,874
Post-Modification Outstanding Recorded Investment	3,106	2,006	6,104	5,874
Finance Leases [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	13	16	33	54
Pre-Modification Outstanding Recorded Investment	292	334	659	1,063
Post-Modification Outstanding Recorded Investment	230	334	565	1,063
Other Consumer Loans [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	352	271	1,094	1,001
Pre-Modification Outstanding Recorded Investment	1,756	1,118	5,172	4,440
Post-Modification Outstanding Recorded Investment	1,758	1,118	5,147	4,440
Commercial Construction [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts		0		0
Pre-Modification Outstanding Recorded Investment		0		0
Post-Modification Outstanding Recorded Investment		0		0
Residential Construction [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts		0		1
Pre-Modification Outstanding Recorded Investment		0		195
Post-Modification Outstanding Recorded Investment		0		195
Land Construction [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	3	3	5	7
Pre-Modification Outstanding Recorded Investment	183	133	238	341
Post-Modification Outstanding Recorded Investment	$ 143	$ 136	$ 200	$ 344