STOCK-BASED COMPENSATION (Details) (USD $)	0 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Weighted Average Grant Price [Roll Forward]
Stock compensation expense		$ 685,000	$ 724,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights		The shares of restricted stock granted to employees and that are outstanding as of March 31, 2014 vest in accordance with one of the following vesting schedules: 100% one year after date of grant; 33.3% each year for three years after date of grant; 20% each year for five years after the grant date; or 10% each year for ten years after the grant date.
Numerator used for calculating the number of whole shares granted		75,000
Award vesting period		1 year
Number of shares authorized for grants (in shares)	800,000	800,000
Number of shares granted (in shares)	(829,459)	(44,300)
Number of shares forfeited (in shares)	120,067	11,158
Number of shares available for future grants (in shares)	90,608	90,608
Weighted-average grant price of granted shares (in dollars per share)	$ 27.43	$ 97.17
Restricted Stock [Roll Forward]
Non-vested, beginning balance (in shares)		211,510
Granted (in shares)	829,459	44,300
Forfeited (in shares)	(120,067)	(11,158)
Vested (in shares)		(31,147)
Nonvested, ending balance (in shares)	213,505	213,505
Weighted Average Grant Price [Roll Forward]
Non vested, beginning balance (in dollars per share)		$ 36.17
Granted (in dollars per share)	$ 27.43	$ 97.17
Forfeitures (in dollars per share)		$ 35.72
Vested (in dollars per share)		$ 38.14
Nonvested, ending balance (in dollars per share)	$ 48.48	$ 48.48
Stock compensation expense		700,000	700,000
Related income tax benefits recognized		300,000	300,000
Unrecognized compensation expense	$ 9,300,000	$ 9,300,000		$ 5,700,000
Compensation cost not yet recognized, Period for recognition		30 months 6 days