SHARE-BASED COMPENSATION - Summary of Stock Options and SARs (Details) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance, beginning of period, shares	70,734
Exercised, shares	(36,291)
Expired, shares	0
Balance, end of period, shares	34,443
Balance, beginning of period, weighted average exercise price	$ 22.60
Exercised, weighted average exercise price	$ 21.30
Expired, weighted average exercise price	$ 0.00
Balance, end of period, weighted average exercise price	$ 23.97
Outstanding - Weighted Average Remaining Contractual Life (In years)	1 year 7 months 26 days
Exercisable - Weighted Average Remaining Contractual Life (In years)	1 year 7 months 26 days
Aggregate Intrinsic Value	$ 424
Unamortized Compensation Expense	0
Granted, shares	0
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance, beginning of period, shares	145,806
Exercised, shares	(9,000)
Expired, shares	0
Balance, end of period, shares	136,806
Balance, beginning of period, weighted average exercise price	$ 21.97
Exercised, weighted average exercise price	$ 21.40
Expired, weighted average exercise price	$ 0.00
Balance, end of period, weighted average exercise price	$ 22.01
Outstanding - Weighted Average Remaining Contractual Life (In years)	3 years 8 months 12 days
Exercisable - Weighted Average Remaining Contractual Life (In years)	3 years 8 months 12 days
Aggregate Intrinsic Value	1,953
Unamortized Compensation Expense	$ 0
Granted, shares	0