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BASIS OF PRESENTATION AND ORGANIZATION (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Jun. 30, 2011
As Previously Reported [Member]
|
Dec. 31, 2011
As Previously Reported [Member]
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Jun. 30, 2011
Adjustment [Member]
|
Dec. 31, 2011
Adjustment [Member]
|
Jun. 30, 2011
Scenario Revised Reported [Member]
|
Dec. 31, 2011
Scenario Revised Reported [Member]
|
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| Income Statement Abstract | ||||||||||||||||||
| Income Tax Expense (Benefit) | $ 12,474 | $ (14,211) | $ 20,595 | $ (29,968) | $ (16,444) | $ 2,233 | $ 2,233 | $ (27,735) | $ (14,211) | |||||||||
| Net income (loss) | 7,347 | 8,177 | (3,207) | (1,049) | 10,524 | 8,231 | 46,501 | 1,021 | 11,268 | 66,277 | 46,436 | 48,734 | 68,510 | (2,233) | (2,233) | 46,501 | 66,277 | |
| Earnings Per Share Abstract | ||||||||||||||||||
| Basic net income (loss) per common share | $ 0.20 | $ 0.22 | $ (0.09) | $ (0.03) | $ 0.29 | $ 0.23 | $ 1.28 | $ 0.03 | $ 1.34 | $ 1.88 | $ (0.06) | $ (0.06) | $ 1.28 | $ 1.82 | ||||
| Diluted net income (loss) per common share | $ 0.19 | $ 0.22 | $ (0.09) | $ (0.03) | $ 0.28 | $ 0.22 | $ 1.23 | $ 0.03 | $ 1.29 | $ 1.81 | $ (0.06) | $ (0.05) | $ 1.23 | $ 1.76 | ||||
| Statement Of Financial Position Abstract | ||||||||||||||||||
| Deferred tax liabilities | 26,226 | 13,550 | 26,226 | 13,550 | 11,317 | 2,233 | 13,550 | |||||||||||
| Liabilities Noncurrent | 601,588 | 638,985 | 601,588 | 638,985 | 636,752 | 2,233 | 638,985 | |||||||||||
| Total liabilities | 650,864 | 670,358 | 650,864 | 670,358 | 668,125 | 2,233 | 670,358 | |||||||||||
| Retained Earnings Accumulated Deficit | (337,514) | (348,798) | (337,514) | (348,798) | (346,565) | (2,233) | (348,798) | |||||||||||
| Total shareholders' equity | 264,717 | 248,911 | 264,717 | 248,911 | 170,667 | 113,952 | 251,144 | (2,233) | 248,911 | |||||||||
| Statement Of Cash Flows Abstract | ||||||||||||||||||
| Net income (loss) | 7,347 | 8,177 | (3,207) | (1,049) | 10,524 | 8,231 | 46,501 | 1,021 | 11,268 | 66,277 | 46,436 | 48,734 | 68,510 | (2,233) | (2,233) | 46,501 | 66,277 | |
| Deferred Income Tax Expense (Benefit) | $ 13,296 | $ (12,568) | $ 23,053 | $ (14,801) | $ 2,233 | $ (12,568) | ||||||||||||