Income Taxes	3 Months Ended
Mar. 31, 2013
Income Taxes [Abstract]
Income Taxes	Note 9 – Income taxes We account for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the expected tax consequences of temporary differences between the tax bases of assets and liabilities and their reported amounts. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more likely than not to be realized. We account for uncertainty in income taxes recognized in our financial statements using prescribed recognition thresholds and measurement attributes for financial statement disclosure of tax positions taken or expected to be taken on our tax returns. We had $21.7 million and $20.9 million of unrecognized tax benefits at March 31, 2013 and December 31, 2012, respectively, all of which would affect our effective income tax rate if recognized. We recorded a gross increase in unrecognized tax benefits of $541,000 for the three month period ended March 31, 2013 as a result of tax positions taken during the period. Our continuing policy is to recognize interest and penalties related to income tax matters in income tax expense. As of March 31, 2013, we have approximately $1.4 million accrued for interest related to uncertain tax positions. The tax years 2006 through 2012 remain open to examination by the major taxing jurisdictions to which we are subject. Our provision for income taxes reflected an effective tax rate of (3)% and 22% for the three month periods ended March 31, 2013 and 2012, respectively. For the three month period ended March 31, 2013, our effective tax rate was lower than the U.S. federal statutory rate of 35% as a result of an enhanced deduction for certain research and development expenses, profits in foreign jurisdictions with reduced income tax rates, the research and development tax credit, and a tax benefit from disqualifying dispositions of equity awards that do not ordinarily result in a tax benefit. For the three month period ended March 31, 2012 our effective tax rate was lower than the U.S. federal statutory rate of 35% as a result of an enhanced deduction for certain research and development expenses and profits in foreign jurisdictions with reduced income tax rates. Our earnings in Hungary are subject to a statutory tax rate of 19%. The difference between this rate and the statutory U.S. rate of 35% resulted in income tax benefits of $1.7 million and $2.1 million for the three month periods ended March 31, 2013 and 2012, respectively. No countries other than Hungary had a significant impact on our effective tax rate. We have not entered into any advanced pricing or other agreements with the Internal Revenue Service with regard to any foreign jurisdictions. The tax position of our Hungarian operation continues to benefit from assets created by the restructuring of our operations in Hungary. In addition, our research and development activities in Hungary continue to benefit from a tax law in Hungary that provides for an enhanced deduction for qualified research and development expenses. Partial release of the valuation allowance on assets from the restructuring and the enhanced tax deduction for research expenses resulted in income tax benefits of $2.4 million and $3.1 million for the three month periods ended March 31, 2013 and 2012, respectively. Earnings from our operations in Malaysia are free of tax under a tax holiday effective January 1, 2013. This tax holiday expires in 2027. If we fail to satisfy the conditions of the tax holiday, this tax benefit may be terminated early. As our Malaysia manufacturing operation is still in a start up phase, the tax holiday did not result in any income tax benefit for the three month period ended March 31, 2013.

Note 9 – Income taxes

We account for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the expected tax consequences of temporary differences between the tax bases of assets and liabilities and their reported amounts. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more likely than not to be realized.

We account for uncertainty in income taxes recognized in our financial statements using prescribed recognition thresholds and measurement attributes for financial statement disclosure of tax positions taken or expected to be taken on our tax returns. We had $21.7 million and $20.9 million of unrecognized tax benefits at March 31, 2013 and December 31, 2012, respectively, all of which would affect our effective income tax rate if recognized. We recorded a gross increase in unrecognized tax benefits of $541,000 for the three month period ended March 31, 2013 as a result of tax positions taken during the period. Our continuing policy is to recognize interest and penalties related to income tax matters in income tax expense. As of March 31, 2013, we have approximately $1.4 million accrued for interest related to uncertain tax positions. The tax years 2006 through 2012 remain open to examination by the major taxing jurisdictions to which we are subject.

Our provision for income taxes reflected an effective tax rate of (3)% and 22% for the three month periods ended March 31, 2013 and 2012, respectively. For the three month period ended March 31, 2013, our effective tax rate was lower than the U.S. federal statutory rate of 35% as a result of an enhanced deduction for certain research and development expenses, profits in foreign jurisdictions with reduced income tax rates, the research and development tax credit, and a tax benefit from disqualifying dispositions of equity awards that do not ordinarily result in a tax benefit. For the three month period ended March 31, 2012 our effective tax rate was lower than the U.S. federal statutory rate of 35% as a result of an enhanced deduction for certain research and development expenses and profits in foreign jurisdictions with reduced income tax rates.

Our earnings in Hungary are subject to a statutory tax rate of 19%. The difference between this rate and the statutory U.S. rate of 35% resulted in income tax benefits of $1.7 million and $2.1 million for the three month periods ended March 31, 2013 and 2012, respectively. No countries other than Hungary had a significant impact on our effective tax rate. We have not entered into any advanced pricing or other agreements with the Internal Revenue Service with regard to any foreign jurisdictions.

The tax position of our Hungarian operation continues to benefit from assets created by the restructuring of our operations in Hungary. In addition, our research and development activities in Hungary continue to benefit from a tax law in Hungary that provides for an enhanced deduction for qualified research and development expenses. Partial release of the valuation allowance on assets from the restructuring and the enhanced tax deduction for research expenses resulted in income tax benefits of $2.4 million and $3.1 million for the three month periods ended March 31, 2013 and 2012, respectively.

Earnings from our operations in Malaysia are free of tax under a tax holiday effective January 1, 2013. This tax holiday expires in 2027. If we fail to satisfy the conditions of the tax holiday, this tax benefit may be terminated early. As our Malaysia manufacturing operation is still in a start up phase, the tax holiday did not result in any income tax benefit for the three month period ended March 31, 2013.