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STOCK-BASED COMPENSATION (Tables) | 3 Months Ended
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Mar. 31, 2012
STOCK-BASED COMPENSATION |
Schedule of weighted average assumptions |
|  | Three Months Ended March 31, 2012 |
Expected life in years |  | 4.5 |
Risk-free interest rate |  | 0.78 | %
Volatility |  | 47.96 | %
Dividend yield |  | 0.0 | %
Summary of stock option activity |
|  | Stock Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Life |  | Aggregate Intrinsic Value |
Options outstanding, December 31, 2011 |  | 3,271 |  | $ | 27.39 |  |  |  |  |
Granted |  | 153 |  | 14.36 |  |  |  |  |
Cancelled |  | (365 | ) | 22.65 |  |  |  |  |
Options outstanding, March 31, 2012 |  | 3,059 |  | 27.30 |  | 4.9 |  | $ | 1,637 |
Options exercisable, March 31, 2012 |  | 2,056 |  | 33.38 |  | 3.5 |  | — |
Schedule of restricted stock, restricted stock unit and cash settled restricted stock unit activity |
|  | Shares |  | Weighted Average Grant-Date Fair Value Per Share |
Non-vested awards, December 31, 2011 |  | 1,670 |  | $ | 19.49 |
Granted |  | 1,212 |  | 14.31 |
Vested |  | (598 | ) | 20.54 |
Cancelled |  | (50 | ) | 22.02 |
Non-vested awards, March 31, 2012 |  | 2,234 |  | 16.34 |
Schedule of phantom unit activity |
|  | Phantom Units |  | Weighted Average Grant-Date Fair Value per Unit |
Phantom units outstanding, December 31, 2011 |  | 75,267 |  | $ | 21.45 |
Granted |  | 17,814 |  | 23.70 |
Vested |  | (29,950 | ) | 17.53 |
Phantom units outstanding, March 31, 2012 |  | 63,131 |  | 23.94 |

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- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 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 -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -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 -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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