INCOME TAXES - Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Effective Income Tax Rate [Abstract]
Effective income tax rate	41.90%	57.40%	44.40%	57.10%
Deferred tax assets:
Total current deferred tax assets - net	$ 2,445		$ 2,445		$ 2,445
Deferred tax liabilities:
Total non-current deferred tax liabilities	$ (33,949)		$ (33,949)		$ (26,226)

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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