STOCK COMPENSATION PLANS (Details 2) (USD $)	84 Months Ended		12 Months Ended					12 Months Ended					12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Time-based restricted stock	Dec. 31, 2011 Time-based restricted stock	Dec. 31, 2010 Time-based restricted stock	Dec. 31, 2008 Time-based restricted stock 2008	Dec. 31, 2012 Time-based restricted stock 2008	Dec. 31, 2012 Time-based restricted stock Minimum	Dec. 31, 2012 Time-based restricted stock Maximum	Dec. 31, 2012 Performance-based restricted stock	Dec. 31, 2006 Performance-based restricted stock 2006	Dec. 31, 2012 Performance-based restricted stock 2006	Dec. 31, 2008 Performance-based restricted stock 2008	Dec. 31, 2012 Performance-based restricted stock 2008
Stock Compensation Plans
Outstanding awards (in shares)	1,698,281	1,698,281	848,281				27,687			850,000		275,000		20,000
Vesting period								3 years	5 years
Granted (in shares)	2,537,892		1,647,892			577,730				890,000	315,000		20,000
Compensation expense			$ 5,700,000	$ 7,600,000	$ 8,500,000
Income tax benefit recognized related to the compensation expense			2,200,000	3,200,000	3,700,000
Total Unrecognized Compensation Expense			$ 10,700,000							$ 33,797,000		$ 14,924,000		$ 453,000
Expected weighted-average period for recognition of compensation costs			1 year 3 months 18 days