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Income Taxes (Details 4) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Schedule of current and non-current deferred tax assets and liabilities |  |
Prepaid expenses and other current assets | $ 16,319 | $ 12,662
Other long term assets | 8,110 | 12,262
Other current liabilities | 687 |
Deferred income taxes | $ 62,046 | $ 69,791

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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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