SHAREHOLDER'S EQUITY (Details) (USD $) | 12 Months Ended | 1 Months Ended | 3 Months Ended |
In Millions, except Share data, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Apr. 30, 2006 | 31-May-05 | Oct. 31, 2004 | Nov. 30, 2011 | Oct. 31, 2011 | Aug. 31, 2010 | Mar. 31, 2012 |
| Plan | Installment | Installment | Installment | Installment |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Number of compensation plans | 5 | | | | | | | | | |
Share based compensation cost | $1.50 | $2.90 | $4.10 | | | | | | | |
5.00 to 10.00 [Member] | | | | | | | | | | |
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) | $5 | | | | | | | | | |
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $10 | | | | | | | | | |
Number Exercisable (in shares) | 51,202 | | | | | | | | | |
Weighted Average Exercise Price (in dollars per share) | $9.26 | | | | | | | | | |
Weighted Average Remaining Contractual Life | 7 years 10 months 28 days | | | | | | | | | |
Aggregate Intrinsic Value | 0.2 | | | | | | | | | |
10.01 to 15.00 [Member] | | | | | | | | | | |
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) | $10.01 | | | | | | | | | |
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $15 | | | | | | | | | |
Number Exercisable (in shares) | 384,237 | | | | | | | | | |
Weighted Average Exercise Price (in dollars per share) | $13.08 | | | | | | | | | |
Weighted Average Remaining Contractual Life | 5 years 6 months 25 days | | | | | | | | | |
Aggregate Intrinsic Value | 0.3 | | | | | | | | | |
15.01 to 20.00 [Member] | | | | | | | | | | |
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) | $15.01 | | | | | | | | | |
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $20 | | | | | | | | | |
Number Exercisable (in shares) | 529,774 | | | | | | | | | |
Weighted Average Exercise Price (in dollars per share) | $18.31 | | | | | | | | | |
Weighted Average Remaining Contractual Life | 4 years 9 months 7 days | | | | | | | | | |
Aggregate Intrinsic Value | 0 | | | | | | | | | |
20.01 to 20.15 [Member] | | | | | | | | | | |
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) | $20.01 | | | | | | | | | |
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $20.15 | | | | | | | | | |
Number Exercisable (in shares) | 100,000 | | | | | | | | | |
Weighted Average Exercise Price (in dollars per share) | $20.15 | | | | | | | | | |
Weighted Average Remaining Contractual Life | 2 years 0 months 22 days | | | | | | | | | |
Aggregate Intrinsic Value | 0 | | | | | | | | | |
5.00 to 20.15 [Member] | | | | | | | | | | |
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) | $5 | | | | | | | | | |
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $20.15 | | | | | | | | | |
Number Exercisable (in shares) | 1,065,213 | | | | | | | | | |
Weighted Average Exercise Price (in dollars per share) | $16.16 | | | | | | | | | |
Weighted Average Remaining Contractual Life | 4 years 11 months 12 days | | | | | | | | | |
Aggregate Intrinsic Value | 0.5 | | | | | | | | | |
Stock Options [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share based compensation cost | 0.7 | 1.1 | 2.5 | | | | | | | |
Share based compensation cost, future income tax benefits | 0.2 | 0.4 | 1.4 | | | | | | | |
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) | 2.02% | 1.66% | 1.10% | | | | | | | |
Expected volatility (in hundredths) | 47.10% | 41.10% | 57.30% | | | | | | | |
Expected life in years | 6 years 2 months 12 days | 7 years 10 months 24 days | 6 years 3 months 18 days | | | | | | | |
Outstanding and exercisable options, Weighted Average Shares [Roll Forward] | | | | | | | | | | |
Outstanding at beginning of year (in shares) | 1,175,499 | 1,353,059 | 1,285,115 | | | | | | | 1,285,115 |
Granted (in shares) | 65,000 | 60,000 | 772,500 | | | | | | | |
Exercised (in shares) | -33,749 | -34,310 | -109,466 | | | | | | | |
Cancelled or expired (in shares) | -104,500 | -203,250 | -595,090 | | | | | | | |
Outstanding at end of year (in shares) | 1,102,250 | 1,175,499 | 1,353,059 | | | | | | | |
Options exercisable at year end (in shares) | 839,500 | 772,749 | 682,809 | | | | | | | |
Weighted average fair value per option granted during the year (in dollars per share) | $5.92 | $4.44 | $7.90 | | | | | | | |
Outstanding and exercisable options, Weighted Average Exercise Price [Roll Forward] | | | | | | | | | | |
Outstanding at beginning of year (in dollars per share) | $16.11 | $15.88 | $13.39 | | | | | | | 13.39 |
Granted (in dollars per share) | $12.39 | $9.54 | $15 | | | | | | | |
Exercised (in dollars per share) | $9.78 | $3.04 | $3.12 | | | | | | | |
Cancelled or expired (in dollars per share) | $15.83 | $14.84 | $11.71 | | | | | | | |
Outstanding at end of year (in dollars per share) | $16.11 | $16.11 | $15.88 | | | | | | | |
Weighted average grant date fair value [Roll Forward] | | | | | | | | | | |
Total intrinsic value of options exercised | 0.2 | 0.2 | 1.4 | | | | | | | |
Unrecognized compensation costs | 0.4 | | | | | | | | | |
Weighted average period of recognition | 1 year 8 months 1 day | | | | | | | | | |
Total fair value of stock options vested | 1.2 | 1.6 | 1.1 | | | | | | | |
Restricted Stock Units [Member] | Former Officer and Director [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share based compensation cost | 0 | 0 | 0 | | | | | | | |
Restricted Stock Units [Member] | Key Employee [Member] | Granted October 2011 [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share based compensation cost | 0 | 0.8 | 0.2 | | | | | | | |
Restricted Stock Units [Member] | Key Employee [Member] | Granted November 2011 [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share based compensation cost | 0.2 | 0.2 | 0.4 | | | | | | | |
Restricted Stock Units [Member] | Two Key Employees [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share based compensation cost | 0.3 | 0.4 | 0.5 | | | | | | | |
Restricted Stock Units [Member] | Director [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share based compensation cost | 0.1 | 0.1 | 0.1 | | | | | | | |
Unvested Stock Options [Member] | | | | | | | | | | |
Activity for all unvested stock options [Roll Forward] | | | | | | | | | | |
Unvested at beginning of the year (in shares) | 402,750 | | | | | | | | | |
Granted (in shares) | 65,000 | | | | | | | | | |
Vested (in shares) | -134,000 | | | | | | | | | |
Forfeited (in shares) | -71,000 | | | | | | | | | |
Unvested at end of the year (in shares) | 262,750 | | | | | | | | | |
Weighted average grant date fair value [Roll Forward] | | | | | | | | | | |
Unvested at the beginning of the year (in dollars per share) | $8.58 | | | | | | | | | |
Granted (in dollars per share) | $5.92 | | | | | | | | | |
Vested (in dollars per share) | $8.77 | | | | | | | | | |
Forfeited (in dollars per share) | $7.02 | | | | | | | | | |
Unvested at the end of the year (in dollars per share) | $8.25 | | | | | | | | | |
Restricted Stock and Restricted Stock Units [Abstract] | | | | | | | | | | |
Granted (in shares) | 65,000 | | | | | | | | | |
Vested (in shares) | 134,000 | | | | | | | | | |
1995 Long-term Stock Incentive Plan [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Term of award | 10 years | | | | | | | | | |
Outstanding and exercisable options, Weighted Average Shares [Roll Forward] | | | | | | | | | | |
Outstanding at end of year (in shares) | 0 | | | | | | | | | |
1995 Stock Option Plan for Non-Employee Directors [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Term of award | 10 years | | | | | | | | | |
Number of shares authorized for issuance (in shares) | 100,000 | | | | | | | | | |
1995 Stock Option Plan for Non-Employee Directors [Member] | Stock Options [Member] | | | | | | | | | | |
Outstanding and exercisable options, Weighted Average Shares [Roll Forward] | | | | | | | | | | |
Outstanding at end of year (in shares) | 4,000 | | | | | | | | | |
1999 Long-term Stock Incentive Plan, as amended [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Number of shares authorized for issuance (in shares) | 7,500,000 | 5,000,000 | | | | | | | | |
Number of shares granted per employee in each calendar year, maximum (in shares) | 3,000,000 | | | | | | | | | |
1999 Long-term Stock Incentive Plan, as amended [Member] | Stock Options [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Number of shares granted per employee in each calendar year, maximum (in shares) | 1,500,000 | | | | | | | | | |
Outstanding and exercisable options, Weighted Average Shares [Roll Forward] | | | | | | | | | | |
Outstanding at end of year (in shares) | 558,500 | | | | | | | | | |
1999 Long-term Stock Incentive Plan, as amended [Member] | Restricted Stock Units [Member] | Former Officer and Director [Member] | | | | | | | | | | |
Activity for all unvested stock options [Roll Forward] | | | | | | | | | | |
Granted (in shares) | | | | | | 1,000,000 | | | | |
Restricted Stock and Restricted Stock Units [Abstract] | | | | | | | | | | |
Granted (in shares) | | | | | | 1,000,000 | | | | |
Non performance award, Vested (in hundredths) | | | | 10.00% | 20.00% | | | | | |
2006 Stock Incentive Plan For Non-Employee Directors [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Number of shares authorized for issuance (in shares) | 200,000 | | | | | | | | | |
2006 Stock Incentive Plan For Non-Employee Directors [Member] | Stock Options [Member] | | | | | | | | | | |
Outstanding and exercisable options, Weighted Average Shares [Roll Forward] | | | | | | | | | | |
Outstanding at end of year (in shares) | 15,000 | | | | | | | | | |
2010 Long-term Stock Incentive Plan [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Number of shares authorized for issuance (in shares) | 7,500,000 | | | | | | | | | |
2010 Long-term Stock Incentive Plan [Member] | Stock Options [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Number of shares granted per employee in each calendar year, maximum (in shares) | 1,500,000 | | | | | | | | | |
Outstanding and exercisable options, Weighted Average Shares [Roll Forward] | | | | | | | | | | |
Outstanding at end of year (in shares) | 524,750 | | | | | | | | | |
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member] | | | | | | | | | | |
Outstanding and exercisable options, Weighted Average Shares [Roll Forward] | | | | | | | | | | |
Outstanding at end of year (in shares) | 255,000 | | | | | | | | | |
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member] | Key Employee [Member] | | | | | | | | | | |
Activity for all unvested stock options [Roll Forward] | | | | | | | | | | |
Granted (in shares) | | | | | | | 100,000 | 100,000 | | |
Vested (in shares) | | | | | | | | -90,000 | | |
Restricted Stock and Restricted Stock Units [Abstract] | | | | | | | | | | |
Granted (in shares) | | | | | | | 100,000 | 100,000 | | |
Vested (in shares) | | | | | | | | 90,000 | | |
Number of vesting installments | | | | | | | 10 | 10 | | |
Number of units vesting annually (in shares) | | | | | | | 10,000 | 10,000 | | |
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member] | Key Employee [Member] | Granted August 2010 [Member] | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | | | | | |
Share based compensation cost | $0.20 | $0.30 | $0.40 | | | | | | | |
Activity for all unvested stock options [Roll Forward] | | | | | | | | | | |
Granted (in shares) | | | | | | | | | 175,000 | |
Restricted Stock and Restricted Stock Units [Abstract] | | | | | | | | | | |
Granted (in shares) | | | | | | | | | 175,000 | |
Number of vesting installments | | | | | | | | | 10 | |
Number of units vesting annually (in shares) | | | | | | | | | 17,500 | |
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member] | Two Key Employees [Member] | | | | | | | | | | |
Activity for all unvested stock options [Roll Forward] | | | | | | | | | | |
Granted (in shares) | | | | | | | | | | 50,000 |
Restricted Stock and Restricted Stock Units [Abstract] | | | | | | | | | | |
Granted (in shares) | | | | | | | | | | 50,000 |
Number of vesting installments | | | | | | | | | | 10 |
Number of units vesting annually (in shares) | | | | | | | | | | 10,000 |