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SHARE-BASED COMPENSATION (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Information with Respect to Outstanding and Exercisable Stock Options | The following table summarizes information with respect to all outstanding and exercisable stock options under all of our plans as of December 31, 2012:
|  | Options Outstanding |  |  | Options Exercisable |
Range of Exercise Prices |  | Number of Options Outstanding |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term (in Years) |  |  | Number Exercisable |  |  | Weighted Average Exercise Price |
$ 2.62 $ 6.62 |  |  | 135,325 |  |  | $ | 5.85 |  |  |  | 9.44 |  |  |  | 24,000 |  |  | $ | 6.51 |
$ 8.63 $ 8.63 |  |  | 326,344 |  |  | $ | 8.63 |  |  |  | 9.16 |  |  |  | — |  |  |  | — |
$13.32 $18.64 |  |  | 309,500 |  |  | $ | 16.42 |  |  |  | 5.03 |  |  |  | 309,500 |  |  | $ | 16.42 |
$19.38 $22.04 |  |  | 317,314 |  |  | $ | 21.85 |  |  |  | 6.59 |  |  |  | 232,831 |  |  | $ | 21.87 |
$22.13 $29.02 |  |  | 335,128 |  |  | $ | 25.72 |  |  |  | 6.81 |  |  |  | 202,329 |  |  | $ | 25.74 |
$29.35 $30.67 |  |  | 380,250 |  |  | $ | 30.00 |  |  |  | 3.70 |  |  |  | 380,250 |  |  | $ | 30.00 |
$30.80 $33.96 |  |  | 307,750 |  |  | $ | 32.45 |  |  |  | 3.71 |  |  |  | 307,750 |  |  | $ | 32.45 |
$34.70 $35.29 |  |  | 281,801 |  |  | $ | 34.76 |  |  |  | 2.37 |  |  |  | 281,801 |  |  | $ | 34.76 |
$35.73 $64.12 |  |  | 195,350 |  |  | $ | 59.54 |  |  |  | 1.37 |  |  |  | 195,350 |  |  | $ | 59.54 |
$68.24 $68.24 |  |  | 3,125 |  |  | $ | 68.24 |  |  |  | 1.43 |  |  |  | 3,125 |  |  | $ | 68.24 |
|  |  | 2,591,887 |  |  | $ | 25.96 |  |  |  | 5.28 |  |  |  | 1,936,936 |  |  | $ | 30.24 |
Schedule of Fair Value of Stock Option Award Granted Estimated on Date of Grant Using the Black-Scholes-Merton Option Pricing Model | The weighted average fair value per share of stock option awards granted during the years ended December 31, 2012, 2011 and 2010, and assumptions used to value stock options are as follows:
|  | For the Year Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Dividend yield |  |  | — |  |  |  | — |  |  |  | — |
Risk-free interest rate |  |  | 0.6 | % |  |  | 2.2 | % |  |  | 2.5 | %
Weighted average volatility |  |  | 68.4 | % |  |  | 53.3 | % |  |  | 52.4 | %
Expected life (in years) |  |  | 5.2 |  |  |  | 5.5 |  |  |  | 5.8 |
Weighted average grant date fair value per share of options granted |  | $ | 4.10 |  |  | $ | 10.89 |  |  | $ | 14.95 |
Employee Stock Option [Member] |
Summary of Stock Option Activity | Stock option activity during the years ended December 31, 2012, 2011 and 2010, under all of our plans was as follows:
|  | Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value (in thousands) |
Outstanding as of December 31, 2009 |  |  | 3,213,102 |  |  | $ | 28.30 |  |  |  |  |  |  |  |  |
Granted |  |  | 626,664 |  |  |  | 29.53 |  |  |  |  |  |  |  |  |
Exercised |  |  | (51,528 | ) |  |  | 14.87 |  |  |  |  |  |  | $ | 651 |
Forfeited |  |  | (84,779 | ) |  |  | 27.07 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (128,845 | ) |  |  | 40.70 |  |  |  |  |  |  |  |  |
Outstanding as of December 31, 2010 |  |  | 3,574,614 |  |  | $ | 28.29 |  |  |  |  |  |  |  |  |
Granted |  |  | 565,720 |  |  |  | 21.87 |  |  |  |  |  |  |  |  |
Exercised |  |  | (141,625 | ) |  |  | 14.60 |  |  |  |  |  |  | $ | 1,112 |
Forfeited |  |  | (456,459 | ) |  |  | 24.69 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (188,788 | ) |  |  | 36.94 |  |  |  |  |  |  |  |  |
Outstanding as of December 31, 2011 |  |  | 3,353,462 |  |  | $ | 27.79 |  |  |  |  |  |  |  |  |
Granted |  |  | 534,895 |  |  |  | 7.91 |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  |  | — |  |  |  |  |  |  | $ | — |
Forfeited |  |  | (196,400 | ) |  |  | 18.52 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (1,100,070 | ) |  |  | 24.09 |  |  |  |  |  |  |  |  |
Outstanding as of December 31, 2012 |  |  | 2,591,887 |  |  | $ | 25.96 |  |  |  | 5.3 years |  |  | $ | 10 |
Exercisable as of December 31, 2012 |  |  | 1,936,936 |  |  | $ | 30.24 |  |  |  | 4.1 years |  |  | $ | — |
Restricted Stock Shares [Member] |
Schedule of Information with Respect to Outstanding Shares of Restricted Stock | The following table summarizes information with respect to all outstanding restricted stock and restricted stock units under our plans during the years ended December 31, 2012, 2011 and 2010:
|  | Restricted Stock |
|  | Shares |  |  | Weighted Average Grant-Date Fair Value Per Share |  |  | Units |  |  | Weighted Average Grant-Date Fair Value Per Unit |  |  | Total |
Outstanding as of December 31, 2009 |  |  | 1,708,352 |  |  | $ | 20.46 |  |  |  | — |  |  | $ | — |  |  |  | 1,708,352 |
Granted |  |  | 1,037,218 |  |  |  | 28.96 |  |  |  | — |  |  |  | — |  |  |  | 1,037,218 |
Vested |  |  | (283,932 | ) |  |  | 27.58 |  |  |  | — |  |  |  | — |  |  |  | (283,932 | )
Forfeited |  |  | (273,002 | ) |  |  | 23.68 |  |  |  | — |  |  |  | — |  |  |  | (273,002 | )
Outstanding as of December 31, 2010 |  |  | 2,188,636 |  |  | $ | 23.17 |  |  |  | — |  |  | $ | — |  |  |  | 2,188,636 |
Granted |  |  | 1,266,170 |  |  |  | 21.83 |  |  |  | — |  |  |  | — |  |  |  | 1,266,170 |
Vested |  |  | (816,017 | ) |  |  | 15.55 |  |  |  | — |  |  |  | — |  |  |  | (816,017 | )
Forfeited |  |  | (842,042 | ) |  |  | 25.19 |  |  |  | — |  |  |  | — |  |  |  | (842,042 | )
Outstanding as of December 31, 2011 |  |  | 1,796,747 |  |  | $ | 24.74 |  |  |  | — |  |  | $ | — |  |  |  | 1,796,747 |
Granted |  |  | — |  |  |  | — |  |  |  | 1,416,832 |  |  |  | 8.32 |  |  |  | 1,416,832 |
Vested |  |  | (374,260 | ) |  |  | 24.74 |  |  |  | — |  |  |  | — |  |  |  | (374,260 | )
Forfeited |  |  | (568,196 | ) |  |  | 24.73 |  |  |  | (272,899 | ) |  |  | 8.53 |  |  |  | (841,095 | )
Outstanding as of December 31, 2012 |  |  | 854,291 |  |  | $ | 24.74 |  |  |  | 1,143,933 |  |  | $ | 8.27 |  |  |  | 1,998,224 |

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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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