STOCK-BASED COMPENSATION (Details 5) (USD $)	12 Months Ended
	Dec. 31, 2013
Unvested Performance Shares [Rollforward]
Unvested, beginning of period (in shares)	91,750
Granted (in shares)	150,222
Vested (in shares)	(136,917)
Unvested, end of period (in shares)	102,166
Weighted average fair value per share, beginning of period (in dollars per share)	$ 21.45
Weighted average fair value per share, granted (in dollars per share)	$ 22.96
Weighted average fair value, vested (in dollars per share)	$ 28.90
Weighted average fair value, end of period (in dollars per share)	$ 28.90
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(2,889)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 22.19
To Settle in Cash [Member]
Unvested Performance Shares [Rollforward]
Shares outstanding at January 1, 2013, performance shares (in shares)	245,167
Granted, performance shares (in shares)	150,222
Paid/Issued, performance shares (in shares)	(99,889)
Performance shares converted to cash	3,611
Canceled, performance shares (in shares)	(2,889)
Shares outstanding at December 31, 2013, performance shares (in shares)	296,222
Total vested, at December 31, 2013, performance shares (in shares)	194,056
Weighted average fair value, outstanding, at January 1, 2013, performance shares (in dollars per share)	$ 21.45
Weighted average fair value, granted, performance shares (in dollars per share)	$ 22.71
Weighted average fair value, paid/issued, performance shares (in dollars per share)	$ 21.45
Weighted Average Fair Value Performance Shares Converted to Cash	$ 20.26
Weighted average fair value, canceled, performance shares (in dollars per share)	$ 22.19
Weighted average fair value, outstanding, at December 31, 2013, performance shares (in dollars per share)	$ 28.90
Weighted average fair value, total vested, at December 31, 2013, performance shares (in dollars per share)	$ 28.90
To Settle in Shares [Member]
Unvested Performance Shares [Rollforward]
Shares outstanding at January 1, 2013, performance shares (in shares)	242,250
Granted, performance shares (in shares)	149,250
Paid/Issued, performance shares (in shares)	(96,000)
Performance shares converted to cash	(3,611)
Canceled, performance shares (in shares)	(2,889)
Shares outstanding at December 31, 2013, performance shares (in shares)	289,000
Total vested, at December 31, 2013, performance shares (in shares)	186,833
Weighted average fair value, outstanding, at January 1, 2013, performance shares (in dollars per share)	$ 19.22
Weighted average fair value, granted, performance shares (in dollars per share)	$ 21.40
Weighted average fair value, paid/issued, performance shares (in dollars per share)	$ 15.68
Weighted Average Fair Value Performance Shares Converted to Cash	$ 20.26
Weighted average fair value, canceled, performance shares (in dollars per share)	$ 21.99
Weighted average fair value, outstanding, at December 31, 2013, performance shares (in dollars per share)	$ 21.48
Weighted average fair value, total vested, at December 31, 2013, performance shares (in dollars per share)	$ 20.75