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Income Taxes Income Tax Rate Reconciliation (Details)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]      
Statutory federal income tax rate 35.00% 35.00% 35.00%
Research and development credit (22.00%) 0.00% (4.00%)
Qualified production activities deduction (3.00%) (4.00%) (2.00%)
State income taxes (net of federal income tax benefit) 0.00% (2.00%) 1.00%
Non-deductible stock compensation 1.00% 1.00% 0.00%
Valuation allowance 0.00% 27.00% 0.00%
Deemed dividend income 3.00% 0.00% 0.00%
Other (6.00%) [1] (1.00%) (1.00%)
Effective tax rate 8.00% 56.00% 29.00%
[1] Other, in 2013, includes foreign tax rate differential, foreign tax credits and other expenditures not deductible for tax purposes which are all individually insignificant.