Income Taxes (Details Textuals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Current income taxes payable	$ 34,200,000	$ 5,900,000
Federal tax net operating loss carryforward	13,600,000
State tax net operating loss carryforward	41,000,000
Foreign tax net operating loss carryforward	30,800,000
Foreign loss carryforward indefinetly	5,400,000
Valuation Allowances Against Our State and Foreign Loss Carryforwards	2,400,000
Valuation allowances against our foreign loss carryforwards	2,600,000
Recorded tax liabilities for unrecognized gross tax benefits	4,100,000	2,500,000
Decrease in recorded tax liabilities for unrecognized gross tax benefits	200,000
Accrued interest expense for uncertain tax positions	500,000
Accrued interest payable for uncertain tax positions	$ 900,000