v2.4.0.6

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
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Jun. 30, 2011 As Previously Reported [Member]	Dec. 31, 2011 As Previously Reported [Member]	Jun. 30, 2011 Adjustment [Member]	Dec. 31, 2011 Adjustment [Member]	Jun. 30, 2011 Scenario Revised Reported [Member]	Dec. 31, 2011 Scenario Revised Reported [Member]
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)

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-URI http://asc.fasb.org/extlink&oid=6922042&loc=SL4590271-111686



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Name Accounting Research Bulletin (ARB)

-Publisher AICPA

-Number 51

-Paragraph 26

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph A3

-Appendix A



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 25

-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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=6921628&loc=SL4568447-111683

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