COMPENSATION PROGRAMS - Schedule of Restricted Stock Awards (Details) (USD $)	12 Months Ended																																																			1 Months Ended					12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Year 2007 [Member]		Dec. 31, 2013 Year 2007 [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Year 2007 [Member] Remaining Shares Vesting In: 2017 [Member]		Dec. 31, 2013 Year 2008 [Member]		Dec. 31, 2013 Year 2008 [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Year 2008 [Member] Remaining Shares Vesting In: 2017 [Member]		Dec. 31, 2013 Year 2009 [Member]		Dec. 31, 2013 Year 2009 [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Year 2009 [Member] Remaining Shares Vesting In: 2017 [Member]		Dec. 31, 2013 Year 2010 [Member]		Dec. 31, 2013 Year 2010 [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Year 2010 [Member] Remaining Shares Vesting In: 2017 [Member]		Dec. 31, 2013 Year 2011 [Member]		Dec. 31, 2013 Year 2011 [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Year 2011 [Member] Remaining Shares Vesting In: 2017 [Member]		Dec. 31, 2013 Year 2012 [Member]		Dec. 31, 2013 Year 2012 [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Year 2012 [Member] Remaining Shares Vesting In: 2017 [Member]		Dec. 31, 2013 Year 2013 One [Member]		Dec. 31, 2013 Year 2013 One [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Year 2013 One [Member] Remaining Shares Vesting In: 2017 [Member]		Dec. 31, 2013 Year 2013 Two [Member]		Dec. 31, 2013 Year 2013 Two [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Year 2013 Two [Member] Remaining Shares Vesting In: 2017 [Member]		Jan. 31, 2013 Performance-Based Stock Awards [Member] Year 2008 [Member]	Feb. 29, 2012 Performance-Based Stock Awards [Member] Year 2008 [Member]	Jan. 31, 2014 Performance-Based Stock Awards [Member] Year 2009 [Member]	Jan. 31, 2013 Performance-Based Stock Awards [Member] Year 2009 [Member]	Jan. 31, 2014 Performance-Based Stock Awards [Member] Year 2010 [Member]	Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2008 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2008 [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2008 [Member] Remaining Shares Vesting In: 2015 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2008 [Member] Remaining Shares Vesting In: 2016 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2009 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2009 [Member] Remaining Shares Vesting In: 2014 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2009 [Member] Remaining Shares Vesting In: 2015 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2009 [Member] Remaining Shares Vesting In: 2016 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2010 [Member] December 31 2017 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2010 [Member] Remaining Shares Vesting In: 2014 [Member] December 31 2017 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2010 [Member] Remaining Shares Vesting In: 2015 [Member] December 31 2017 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2010 [Member] Remaining Shares Vesting In: 2016 [Member] December 31 2017 [Member]		Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2011 [Member] December 31 2018 [Member]	Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2011 [Member] Remaining Shares Vesting In: 2014 [Member] December 31 2018 [Member]	Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2011 [Member] Remaining Shares Vesting In: 2015 [Member] December 31 2018 [Member]	Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2011 [Member] Remaining Shares Vesting In: 2016 [Member] December 31 2018 [Member]	Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2012 [Member] December 31 2019 [Member]	Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2012 [Member] Remaining Shares Vesting In: 2014 [Member] December 31 2019 [Member]	Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2012 [Member] Remaining Shares Vesting In: 2015 [Member] December 31 2019 [Member]	Dec. 31, 2013 Service-Based Stock Awards [Member] Year 2012 [Member] Remaining Shares Vesting In: 2016 [Member] December 31 2019 [Member]	Dec. 31, 2013 Stock Awards Activity [Member]	Dec. 31, 2012 Stock Awards Activity [Member]	Dec. 31, 2011 Stock Awards Activity [Member]	Dec. 31, 2013 Performance Based Stock Awards Vesting In Three Year [Member]	Dec. 31, 2013 Performance Based Stock Awards Vesting In Three Year [Member] Minimum [Member]	Dec. 31, 2013 Performance Based Stock Awards Vesting In Three Year [Member] Maximum [Member]	Dec. 31, 2012 Performance Based Stock Awards Vesting After Three Year [Member]	Dec. 31, 2011 Stock Options [Member]	Dec. 31, 2013 Long Term Equity Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value per share (in dollars per share)				$ 12.93	[1]					$ 12.87	[2]					$ 11.39	[2]					$ 11.64	[2]					$ 13.23	[2]					$ 13.59	[2]					$ 13.02	[2]					$ 12.34	[3]										$ 10.18	[4]							$ 14.33	[5]							$ 12.44	[6]							$ 12.72				$ 11.67												$ 12.45
Total original grants (in shares)				156,000	[1]					6,000	[2]					6,000	[2]					12,000	[2]					24,000	[2]					29,000	[2]					28,000	[2]					35,703	[3]										140,658	[4]							110,917	[5]							128,766	[6]							132,490				145,399												242,505
Vested (in shares)				121,004	[1]					6,000	[2]					6,000	[2]					12,000	[2]					24,000	[2]					29,000	[2]					0	[2]					0	[3]
Forfeited (in shares)				12,832	[1]					0	[2]					0	[2]					0	[2]					0	[2]					0	[2]					0	[2]					0	[3]										5,464	[4]							4,571	[5]							5,759	[6]							5,050				5,697
Remaining shares vesting in period (in shares)						22,164	[1]	0	[1]			0	[2]	0	[2]			0	[2]	0	[2]			0	[2]	0	[2]			0	[2]	0	[2]			0	[2]	0	[2]			28,000	[2]	0	[2]			0	[3]	35,703	[3]								0	[4]	0	[4]	0	[4]			0	[5]	0	[5]	0	[5]			61,499	[6]	0	[6]	0	[6]		63,722	63,718	0		0	69,853	69,849
Equity instruments other than options, nonvested, number of shares [Roll Forward]
Unvested stock awards outstanding at beginning of period (in shares)	657,720																																																																																													485,010
Grants (in shares)	63,703
Vesting's (in shares)	(172,523)
Forfeitures (in shares)	(19,969)
Unvested stock awards outstanding at end of period (in shares)	528,931	657,720																																																																																											242,505
Percentage of performance based awards granted, actual (in hundredths)																																																																																												50.00%			50.00%
Equity instruments other than options, nonvested, weighted average grant date fair value [Abstract]
Unvested stock awards outstanding at beginning of period (in dollars per share)	$ 12.48
Grants (in dollars per share)	$ 12.64
Vestings (in dollars per share)	$ 12.41
Forfeitures (in dollars per share)	$ 12.65
Unvested stock awards outstanding at end of period (in dollars per share)	$ 12.51	$ 12.48
Salaries and benefits	$ 5,776,000	$ 5,929,000	$ 5,741,000																																																																																						$ 1,800,000	$ 1,900,000	$ 1,600,000					$ 3,000
Other general and administrative expense																																																																																									387,000	362,000	261,000
Common stock dividend payable	30,872,000	29,512,000																																																																																							1,300,000	765,000
Total of unrecognized compensation expense for unvested stock award																																																																																									$ 3,000,000
Compensation cost not yet recognized, period for recognition																																																																																									1 year 7 months 6 days
Performance-based awards vested (in shares)																																																				67,595	67,599	52,915	53,431	61,508
Expected compensation expense related to stock based compensation awards																																																																																													625,000	5,400,000
Expected issuance of common stock for award program (in shares)	528,931	657,720																																																																																											242,505

[1] The remaining 2007 grant shares vested in January 2014.

[2] Director stock awards have been granted annually upon election or reelection to the board of directors. These awards vest one year after issuance.

[3] In December 2013 the Committee granted service-based awards to employees that were not awarded performance-based restricted stock units. These awards vest on January 2, 2017.

[4] The absolute return metrics for the three-year measurement periods ending December 31, 2012 and 2011 were met resulting in the vesting of 67,595 shares associated with the second 50% of this grant in January 2013 and 67,599 shares associated with the first 50% of this grant in February 2012.

[5] The absolute return metrics for the three-year measurement periods ending December 31, 2013 and 2012 were met resulting in the vesting of 52,915 shares associated with the second 50% of this grant in January 2014 and 53,431 shares associated with the first 50% of this grant in January 2013.

[6] The absolute return metric for the first three-year measurement period ending December 31, 2013 was met resulting in the vesting of 61,508 shares associated with the first 50% of this grant in January 2014.