STOCK-BASED COMPENSATION PLANS (Unvested Stock Option Award Activity) (Details) (SOPs [Member], Stock Options [Member], USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
SOPs [Member] | Stock Options [Member]
Unvested Stock Options Shares:
Unvested at beginning of the year	1,500	3,000	5,247
Granted	0	0	0
Vested	(1,500)	(1,500)	(2,247)
Forfeited	0	0	0
Unvested at end of the year	0	1,500	3,000
Unvested Stock Options Weighted Average Grant Date Fair Value (in dollars per share):
Unvested at beginning of the year	$ 48.37	$ 52.78	$ 54.74
Granted	$ 0.00	$ 0.00	$ 0.00
Vested	$ 48.37	$ 57.12	$ 57.47
Forfeited	$ 0.00	$ 0.00	$ 0.00
Unvested at end of the year	$ 0.00	$ 48.37	$ 52.78