STOCKHOLDERS' EQUITY (Details) (USD $) | 3 Months Ended | 12 Months Ended | 3 Months Ended | | 3 Months Ended | |
Mar. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2011 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013 | Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2014 |
Plan | $ 4.00-$13.99 [Member] | $ 14.00-$19.99 [Member] | $ 20.00-$25.00 [Member] | Stock Options [Member] | Restricted Stock [Member] | Restricted Stock [Member] | Restricted Stock [Member] | LTIP [Member] | LTIP [Member] | LTIP [Member] | LTIP [Member] | LTIP [Member] |
| | | | | | | | | | Stock Options [Member] | Stock Options [Member] | Restricted Stock [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Number of stock incentive plans | 2 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Vesting period of performance-based shares | '4 years | ' | '4 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Specified operating income margin period | 'one or more of the fiscal years | ' | 'one or more of the fiscal years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net share settlement for restricted stock (in shares) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 15,209 | 56,635 | ' |
Net share settlement for stock options (in shares) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 15,209 | 56,635 | ' | ' | ' |
Decrease in equity due to payment of tax for employee | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $100,000 | $400,000 | ' | ' | ' |
Shares [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Nonvested restricted stock outstanding, beginning balance (in shares) | ' | ' | ' | ' | ' | ' | ' | 1,247,946 | ' | ' | ' | ' | ' | ' | ' |
Canceled (in shares) | ' | ' | ' | ' | ' | ' | ' | -111,864 | ' | ' | ' | ' | ' | ' | ' |
Vested (in shares) | ' | ' | ' | ' | ' | ' | ' | -36,423 | ' | ' | ' | ' | ' | ' | ' |
Nonvested restricted stock outstanding, ending balance (in shares) | ' | ' | ' | ' | ' | ' | ' | 1,099,659 | ' | ' | ' | ' | ' | ' | ' |
Weighted Average Grant Date Fair Value [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Nonvested restricted stock outstanding, beginning balance (in dollars per share) | ' | ' | ' | ' | ' | ' | ' | $6.77 | ' | ' | ' | ' | ' | ' | ' |
Canceled (in dollars per share) | ' | ' | ' | ' | ' | ' | ' | $9.99 | ' | ' | ' | ' | ' | ' | ' |
Vested (in dollars per share) | ' | ' | ' | ' | ' | ' | ' | $15.32 | ' | ' | ' | ' | ' | ' | ' |
Nonvested restricted stock outstanding, ending balance (in dollars per share) | ' | ' | ' | ' | ' | ' | ' | $6.16 | ' | ' | ' | ' | ' | ' | ' |
Recognized restricted stock expense | ' | ' | ' | ' | ' | ' | ' | 1,000,000 | 1,200,000 | ' | ' | ' | ' | ' | ' |
Unrecognized restricted stock expense | ' | ' | ' | ' | ' | ' | ' | 5,300,000 | ' | 6,800,000 | ' | ' | ' | ' | ' |
Outstanding restricted shares, intrinsic value | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 4,100,000 |
Shares [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Outstanding, beginning balance (in shares) | 547,125 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Canceled (in shares) | -21,500 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Outstanding, ending balance (in shares) | 525,625 | 547,125 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Vested or expected to vest (in shares) | 516,493 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Exercisable, ending balance (in shares) | 479,965 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Weighted Average Exercise Price Per Share [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Outstanding, beginning balance (in dollars per share) | $14.73 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Canceled (in dollars per share) | $13.21 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Outstanding, ending balance (in dollars per share) | $14.80 | $14.73 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Vested or expected to vest (in dollars per share) | $14.92 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Exercisable, ending balance (in dollars per share) | $15.46 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Weighted Average Remaining Contractual Term [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Outstanding, beginning balance | '4 years 3 months 25 days | '4 years 6 months 22 days | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Outstanding, ending balance | '4 years 3 months 25 days | '4 years 6 months 22 days | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Vested or expected to vest | '4 years 3 months | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Exercisable, ending balance | '3 years 11 months 19 days | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Aggregate Intrinsic Value [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Outstanding, beginning balance | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Canceled | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Outstanding, ending balance | 0 | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Vested or expected to vest | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Exercisable, ending balance | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Unrecognized pre-tax compensation expense | ' | ' | ' | ' | ' | ' | $100,000 | ' | ' | ' | ' | ' | ' | ' | ' |
Weighted average period of unrecognized pre-tax compensation | ' | ' | ' | ' | ' | ' | '0 years 11 months 1 day | ' | ' | ' | ' | ' | ' | ' | ' |
Range of Exercise Prices [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Range of Exercise Prices, Minimum (in dollars per share) | ' | ' | ' | $4 | $14 | $20 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Range of Exercise Prices, Maximum (in dollars per share) | ' | ' | ' | $13.99 | $19.99 | $25 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Stock Options Outstanding [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Shares (in shares) | 525,625 | ' | ' | 244,792 | 182,333 | 98,500 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Contractual Weighted Average Life | '4 years 3 months 25 days | ' | ' | '5 years 10 months 13 days | '3 years 1 month 10 days | '2 years 8 months 12 days | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Weighted Average Price (in dollars per share) | $14.80 | ' | ' | $9.63 | $17.67 | $22.32 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Stock Options Exercisable [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Shares (in shares) | 479,965 | ' | ' | 199,132 | 182,333 | 98,500 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Weighted Exercise Price (in dollars per share) | $15.46 | ' | ' | $10.05 | $17.67 | $22.32 | ' | ' | ' | ' | ' | ' | ' | ' | ' |