STOCK-BASED AWARDS (Details) (USD $)	12 Months Ended											0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Stock options	Dec. 31, 2011 Stock options	Dec. 31, 2010 Stock options	Dec. 31, 2012 Stock options First year	Dec. 31, 2012 Stock options After first year, end of each month	Dec. 31, 2012 Restricted stock unit	Dec. 31, 2011 Restricted stock unit	Dec. 31, 2010 Restricted stock unit	Jan. 14, 2013 Restricted stock unit Subsequent event	Dec. 31, 2012 Restricted stock unit First year	Jan. 14, 2013 Restricted stock unit First year Subsequent event	Dec. 31, 2012 Restricted stock unit Second year	Jan. 14, 2013 Restricted stock unit Second year Subsequent event	Dec. 31, 2012 Restricted stock unit Third year	Jan. 14, 2013 Restricted stock unit Third year Subsequent event
Stock-Based Awards
Expiration term				10 years
Vesting period				4 years					3 years			3 years
Stock available for future grants (in shares)				2,800,000
Shares
Outstanding - beginning of year (in shares)				405,000	496,000	721,000
Exercised (in shares)						(90,000)
Expired/Forfeited (in shares)				(41,000)	(91,000)	(135,000)
Outstanding - end of year (in shares)				364,000	405,000	496,000
Options exercisable at year-end (in shares)				364,000	404,000	472,000
Weighted Average Exercise Price
Outstanding - beginning of year (in dollars per share)				$ 17.58	$ 18.09	$ 20.29
Exercised (in dollars per share)						$ 17.05
Expired/Forfeited (in dollars per share)				$ 20.06	$ 20.55	$ 30.41
Outstanding - end of year (in dollars per share)				$ 17.34	$ 17.58	$ 18.09
Options exercisable at year-end (in dollars per share)				$ 17.34	$ 17.59	$ 18.08
Option Outstanding - Weighted Average Remaining Contractual Term	4 years 1 month 28 days
Option Outstanding - Aggregate Intrinsic Value	$ 13,000
Option Exercisable - Weighted Average Remaining Contractual Term	4 years 1 month 28 days
Option Exercisable - Aggregate Intrinsic Value	13,000
Percentage of award vesting at the end of the year							28.00%	2.00%					25.00%	40.00%	25.00%	30.00%	50.00%	30.00%
Total stock-based compensation expense	3,527,000	3,051,000	5,056,000	3,000	200,000	1,600,000			3,500,000	2,800,000	3,500,000
Remaining unrecognized compensation costs related to nonvested awards				0	3,000	239,000
Stock price (in dollars per share)				$ 14.31
Total intrinsic value of options exercised				0	0	381,000
Cash received from employees from exercise of stock options				$ 0	$ 0	$ 1,500,000
Units
Outstanding-beginning of year (in shares)									522,000	685,000	640,000
Granted at fair value (in shares)									795,000	268,000	302,000	240,000
Vested (in shares)									(240,000)	(318,000)	(185,000)
Forfeited (in shares)									(74,000)	(113,000)	(72,000)
Outstanding-end of period (in shares)									1,003,000	522,000	685,000
Weighted Average Grant Date Fair Value
Outstanding-beginning of year (in dollars per share)									$ 13.40	$ 12.08	$ 11.35
Granted at fair value (in dollars per share)									$ 6.75	$ 15.47	$ 13.17
Vested (in dollars per share)									$ 12.11	$ 12.20	$ 11.52
Forfeited (in dollars per share)									$ 8.25	$ 13.88	$ 11.50
Outstanding-end of period (in dollars per share)									$ 8.81	$ 13.40	$ 12.08
Number of shares of common stock each restricted stock unit represents the right to receive upon vesting									1