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Income Taxes (Deferred Tax Assets and Liabilities by Balance Sheet Classification (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred Tax Assets and Liabilities by Balance Sheet Classification [Abstract]
Deferred tax assets - current	$ 36,846	$ 44,916
Deferred tax liabilities - current	(876)	(119)
Deferred tax assets- non current	43,097	67,479
Deferred tax liabilities - non current	(19,756)	(18,948)
Total net deferred tax assets	$ 59,311	$ 93,328

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 within one year or operating cycle, if longer.

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- Definition

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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- 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).

+ References+ Details