ACCUMULATED OTHER COMPREHENSIVE INCOME (Reclassification Adjustment) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Unrealized gains and losses on available-for-sale securities
Income tax expense	$ (643)	[1]
Net of tax			1,011
Amount Reclassified From Accumulated Other Comprehensive Income [Member]
Unrealized gains and losses on available-for-sale securities
Net securities gains (losses)	1	[2]
Income tax expense	0	[2]
Net of tax	1	[2]
Amortization of defined benefit pension items
Actuarial loss	(55)	[3]
Income tax expense	22	[2]
Net of tax	(33)	[2]
Total reclassifications for the period	$ (32)	[2]

[1] All amounts are net of tax.

[2] Amounts in parenthesis indicate debits to profit/loss

[3] Included in the computation of net periodic benefit cost (see employee benefit plans footnote for additional details).