Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Taxes (Narrative) (Details)

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Income Taxes Income Taxes (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Net operating loss carryforwards $ 76,525,000 $ 56,749,000  
Net operating loss carryforwards, expiration year Jan. 01, 2015    
Deferred tax assets, net operating loss carryforwards 9,683,000 6,198,000  
Operating loss carryforward, valuation allowance 8,297,000 6,198,000  
Non-current deferred tax assets 3,994,000 6,293,000  
Undistributed earnings of foreign subsidiaries 320,708,000    
Unrecognized deferred tax liability associated with undistributed earnings 77,825,000    
Unrecognized tax benefits that would affect the effective tax rate 12,679,000 10,328,000  
Estimated change in unrecognized tax benefits, minimum range 0    
Estimated change in unrecognized tax benefits, maximum range 14,077,000    
Interest expense and penalties recognized (reversed) (253,000) (357,000) (501,000)
Accrued interest and penalties related to uncertain tax positions $ 2,823,000 $ 3,077,000