SHAREHOLDER'S EQUITY (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended																								12 Months Ended		12 Months Ended		1 Months Ended			12 Months Ended				12 Months Ended			1 Months Ended		3 Months Ended		2 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 1.76 to 5.00 [Member]	Dec. 31, 2012 5.01 to 15.00 [Member]	Dec. 31, 2012 15.01 to 20.00 [Member]	Dec. 31, 2012 20.01 to 20.15 [Member]	Dec. 31, 2012 1.76 to 20.15 [Member]	Dec. 31, 2012 Stock Options [Member]	Dec. 31, 2011 Stock Options [Member]	Dec. 31, 2010 Stock Options [Member]	Dec. 31, 2012 Restricted Stock Units [Member] Former Officer and Director [Member]	Dec. 31, 2011 Restricted Stock Units [Member] Former Officer and Director [Member]	Dec. 31, 2010 Restricted Stock Units [Member] Former Officer and Director [Member]	Dec. 31, 2012 Restricted Stock Units [Member] Key Employee [Member]	Dec. 31, 2012 Restricted Stock Units [Member] Two Key Employees [Member]	Dec. 31, 2012 Restricted Stock Units [Member] Two Key Employees [Member]	Dec. 31, 2012 Restricted Stock Units [Member] Director [Member]	Dec. 31, 2011 Restricted Stock Units [Member] Director [Member]	Dec. 31, 2010 Restricted Stock Units [Member] Director [Member]	Dec. 31, 2012 Unvested Stock Options [Member]	Dec. 31, 2012 1995 Long-term Stock Incentive Plan [Member]	Dec. 31, 2012 1995 Stock Option Plan for Non-Employee Directors [Member]	Dec. 31, 2012 1995 Stock Option Plan for Non-Employee Directors [Member] Stock Options [Member]	Dec. 31, 2012 1999 Long-term Stock Incentive Plan, as amended [Member]	Dec. 31, 2011 1999 Long-term Stock Incentive Plan, as amended [Member]	Dec. 31, 2012 1999 Long-term Stock Incentive Plan, as amended [Member] Stock Options [Member]	Dec. 31, 2012 1999 Long-term Stock Incentive Plan, as amended [Member] Restricted Stock Units [Member]	Apr. 30, 2006 1999 Long-term Stock Incentive Plan, as amended [Member] Restricted Stock Units [Member] Former Officer and Director [Member]	May 31, 2005 1999 Long-term Stock Incentive Plan, as amended [Member] Restricted Stock Units [Member] Former Officer and Director [Member]	Oct. 31, 2004 1999 Long-term Stock Incentive Plan, as amended [Member] Restricted Stock Units [Member] Former Officer and Director [Member]	Dec. 31, 2012 1999 Long-term Stock Incentive Plan, as amended [Member] Restricted Stock Units [Member] Former Officer and Director [Member]	Dec. 31, 2012 2006 Stock Incentive Plan For Non-Employee Directors [Member]	Dec. 31, 2012 2006 Stock Incentive Plan For Non-Employee Directors [Member] Stock Options [Member]	Dec. 31, 2012 2010 Long-term Stock Incentive Plan [Member]	Dec. 31, 2012 2010 Long-term Stock Incentive Plan [Member] Stock Options [Member]	Dec. 31, 2012 2010 Long-term Stock Incentive Plan [Member] Restricted Stock Units [Member]	Dec. 31, 2010 2010 Long-term Stock Incentive Plan [Member] Restricted Stock Units [Member] Former Officer and Director [Member]	Aug. 31, 2010 2010 Long-term Stock Incentive Plan [Member] Restricted Stock Units [Member] Key Employee [Member]	Dec. 31, 2012 2010 Long-term Stock Incentive Plan [Member] Restricted Stock Units [Member] Key Employee [Member]	Mar. 31, 2012 2010 Long-term Stock Incentive Plan [Member] Restricted Stock Units [Member] Two Key Employees [Member]	Dec. 31, 2011 2010 Long-term Stock Incentive Plan [Member] Restricted Stock Units [Member] Two Key Employees [Member]	Nov. 30, 2011 2010 Long-term Stock Incentive Plan [Member] Restricted Stock Units [Member] Two Key Employees [Member]	Dec. 31, 2011 2010 Long-term Stock Incentive Plan [Member] Restricted Stock Units [Member] Two Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of compensation plans	5
Term of award																						10 years	10 years
Number of shares authorized for issuance (in shares)																							100,000		7,500,000	5,000,000							200,000		7,500,000
Number of shares granted per employee in each calendar year, maximum (in shares)																									3,000,000		1,500,000	1,500,000								1,500,000	1,500,000
Share based compensation cost	$ 4.1	$ 1.9	$ 2.5						$ 2.5	$ 1.0	$ 1.5	$ 0	$ 0.1	$ 0.6	$ 0.4	$ 0.5	$ 0.7	$ 0.1	$ 0.1	$ 0.1
Share based compensation cost, future income tax benefits									1.4	0.6	0.6
Weighted-average assumptions used to estimate the fair value of options granted [Abstract]
Expected annual dividend yield (in hundredths)									0.00%	0.00%	0.00%
Risk-free interest rate (in hundredths)									1.10%	2.02%	1.37%
Expected volatility (in hundredths)									57.30%	59.80%	61.10%
Expected life in years									6 years 3 months 18 days	8 years	4 years 9 months 18 days
Outstanding and exercisable options, Weighted Average Shares [Roll Forward]
Outstanding at beginning of year (in shares)									1,285,115	1,900,698	2,102,459													25,359										15,000
Granted (in shares)									772,500	277,000	40,000
Exercised (in shares)									(109,466)	(67,758)	(234,011)
Cancelled or expired (in shares)									(595,090)	(824,825)	(7,750)
Outstanding at end of year (in shares)									1,353,059	1,285,115	1,900,698													25,359			607,950							15,000		692,500
Options exercisable at year end (in shares)									682,809	914,365	1,559,872
Weighted average fair value per option granted during the year (in dollars per share)									$ 7.90	$ 7.81	$ 7.24
Outstanding and exercisable options, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)									$ 13.39	$ 10.60	$ 9.87
Granted (in dollars per share)									$ 15.00	$ 12.61	$ 14.18
Exercised (in dollars per share)									$ 3.12	$ 4.18	$ 4.34
Cancelled or expired (in dollars per share)									$ 11.71	$ 7.45	$ 19.39
Outstanding at end of year (in dollars per share)									$ 15.88	$ 13.39	$ 10.60
Total intrinsic value of options exercised									1.4	0.7	3.2
Unrecognized compensation costs																					2.8
Weighted average period of recognition																					2 years 10 months 13 days
Total fair value of stock options vested									1.1	2.2	2.6
Restricted Stock and Restricted Stock Units [Abstract]
Restricted stock units outstanding (in shares)																																					420,000
Granted (in shares)																															1,000,000								175,000		50,000		100,000
Non performance award, Vested (in hundredths)																													10.00%	20.00%
Number of shares terminated (in shares)																																(300,000)
Number of vesting installments																																						10		10		10		10
Number of units vesting annually (in shares)																																								17,500		10,000		10,000
Options vested and exercisable or nonvested that are expected to vest (nonvested outstanding less expected forfeitures) [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share)				$ 1.76	$ 5.01	$ 15.01	$ 20.01	$ 1.76
Range of Exercise Prices, Upper Range Limit (in dollars per share)				$ 5.00	$ 15.00	$ 20.00	$ 20.15	$ 20.15
Number Exercisable (in shares)				24,000	522,003	624,402	100,000	1,270,405
Weighted Average Exercise Price (in dollars per share)				$ 2.07	$ 12.40	$ 18.43	$ 20.15	$ 15.78
Weighted Average Remaining Contractual Life				2 months 19 days	7 years 3 months 22 days	6 years 11 months 19 days	4 years 18 days	6 years 9 months
Aggregate Intrinsic Value				$ 0.2	$ 0.1	$ 0	$ 0	$ 0.3