FAIR VALUE - Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 40,918	[1]	$ 48,660	[1]	$ 43,292	[1]	$ 54,617	[1]
Total gains or (losses) (realized/unrealized):
Included in earnings	(245)	[1]	0	[1]	(245)	[1]	(117)	[1]
Included in other comprehensive income	333	[1]	903	[1]	2,026	[1]	1,763	[1]
Sales					(4,855)	[1]	0	[1]
Purchases					5,123	[1]	0	[1]
Principal Repayments	(2,124)	[1]	(4,643)	[1]	(6,459)	[1]	(11,343)	[1]
Ending balance	38,882	[1]	44,920	[1]	38,882	[1]	44,920	[1]
Available for Sale Securities
Total gains or (losses) (realized/unrealized):
Included in earnings	$ 245		$ 0		$ 245		$ 117

[1] Amounts mostly related to private label mortgage-backed securities.