Income Taxes - Deferred Taxes (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Current deferred tax assets	$ 1,602	$ 1,274
Non-current deferred tax assets	14,999	16,045
Non-current deferred tax liabilities	(25,631)	(751)
Net deferred tax assets (liabilities)	(9,030)
Net deferred tax assets (liabilities)		$ 16,568

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

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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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