STOCK-BASED COMPENSATION PLANS (Details 2) (USD $)	9 Months Ended
	Sep. 30, 2013
Stock option
Assumptions used in valuation related to stock option grants
Expected option life	4 years 9 months 18 days
Minimum volatility factor percentage of market price	39.70%
Maximum volatility factor percentage of market price	40.50%
Stock option | Minimum
Assumptions used in valuation related to stock option grants
Dividend yield (as a percent)	1.10%
Discount rate (as a percent)	0.70%
Weighted Average Grant-Date Fair Value
Vesting period	4 years
Stock option | Maximum
Assumptions used in valuation related to stock option grants
Dividend yield (as a percent)	1.40%
Discount rate (as a percent)	1.40%
Weighted Average Grant-Date Fair Value
Vesting period	5 years
2011 Stock Plan | Restricted Stock
Restricted stock and restricted stock units
Outstanding at the beginning of the period (in shares)	123,941
Granted (in shares)	18,497
Vested (in shares)	(12,736)
Forfeited (in shares)	(10,435)
Outstanding at the end of the period (in shares)	119,267
Weighted Average Grant-Date Fair Value
Outstanding at the beginning of the period (in dollars per share)	$ 24.24
Granted (in dollars per share)	$ 44.15
Vested (in dollars per share)	$ 39.74
Forfeited (in dollars per share)	$ 27.51
Outstanding at the end of the period (in dollars per share)	$ 25.39
2011 Stock Plan | Time Vesting Restricted Stock Units
Restricted stock and restricted stock units
Outstanding at the beginning of the period (in shares)	171,937
Granted (in shares)	13,224
Vested (in shares)	0
Forfeited (in shares)	(8,290)
Outstanding at the end of the period (in shares)	176,871
Weighted Average Grant-Date Fair Value
Outstanding at the beginning of the period (in dollars per share)	$ 36.16
Granted (in dollars per share)	$ 43.49
Forfeited (in dollars per share)	$ 37.87
Outstanding at the end of the period (in dollars per share)	$ 36.63
Vesting period	3 years
2011 Stock Plan | Performance Vesting Restricted Stock Units
Restricted stock and restricted stock units
Granted (in shares)	46,285
Vested (in shares)	0
Forfeited (in shares)	(1,379)
Outstanding at the end of the period (in shares)	44,906
Weighted Average Grant-Date Fair Value
Granted (in dollars per share)	$ 42.40
Forfeited (in dollars per share)	$ 42.19
Outstanding at the end of the period (in dollars per share)	$ 42.41
2011 Stock Plan | Performance Vesting Restricted Stock Units | Minimum
Weighted Average Grant-Date Fair Value
Vesting percentage	0.00%
2011 Stock Plan | Performance Vesting Restricted Stock Units | Maximum
Weighted Average Grant-Date Fair Value
Vesting percentage	200.00%