OTHER COMPREHENSIVE LOSS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
COMPREHENSIVE INCOME
Change in fair value of securities available for sale, pre tax amount	$ (11,943)		$ (1,682)		$ 277
Change in fair value of securities available for sale, tax (expense) benefit	4,578		541		(96)
Change in fair value of securities available for sale, after tax amount	(7,365)		(1,141)		181
Less: net security gains (losses) reclassified into earnings, pre tax amount	230	[1]	(76)	[1]	480	[1]
Less: net security losses reclassified into earnings, tax (expense) benefit	(94)		31		(568)
Less: net security losses reclassified into earnings, after tax amount	136		(45)		(88)
Net change in fair value of securities available for sale, pre tax amount	(12,173)		(1,606)		(203)
Net change in fair value of securities available for sale, tax (expense) benefit	4,672		510		472
Net change in fair value of securities available for sale, after tax amount	(7,501)		(1,096)		269
Change in fair value of cash flow hedges, pre tax amount	(592)	[2]	3,588	[2]	11,869	[2]
Change in fair value of cash flow hedges, tax (expense) benefit	(242)		1,466		4,848
Change in fair value of cash flow hedges, after tax amount	350		(2,122)		(7,021)
Less: net cash flow hedge losses reclassified into earnings, pre tax amount	5,723		5,417		5,472
Less: net cash flow hedge losses reclassified into earnings, tax (expense) benefit	2,338		2,213		2,274
Less: net cash flow hedge losses reclassified into earnings, after tax amount	(3,385)		(3,204)		(3,198)
Net change in fair value of cash flow hedges, pre tax amount	6,315		1,829		(6,397)
Net change in fair value of cash flow hedges, tax (expense) benefit	(2,580)		(747)		2,574
Net change in fair value of cash flow hedges	3,735		1,082		(3,823)
Amortization of certain costs included in net periodic retirement costs, pre tax amount	(1,450)		44		366
Amortization of certain costs included in net periodic retirement costs, tax (expense) benefit	(592)		18		200
Amortization of certain costs included in net periodic retirement costs, after tax amount	858		(26)		(166)
Total other comprehensive loss, pre tax amount	(4,408)		179		(6,966)
Total other comprehensive income, tax (expense) benefit	1,500		(219)		3,246
Total other comprehensive loss	$ (2,908)		$ (40)		$ (3,720)

[1] Net security losses include pre-tax OTTI credit related losses of $0, $76,000, and $243,000 for the years ended December 31, 2013, 2012, and 2011, respectively.

[2] ncludes the remaining balance of a realized but unrecognized gain, net of tax, from the termination of interest rate swaps in June 2009. The original gain of $1.4 million, net of tax, will be recognized in earnings through December 2018, the original maturity date of the swap. The balance of this gain had amortized to $715,000, $859,000, and $1.0 million at December 31, 2013, 2012, and 2011, respectively.