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Income Taxes | 3 Months Ended
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Mar. 31, 2013
Income Taxes | Income Taxes Effective Tax Rates The Company's effective tax rates attributable to income from continuing operations are as follows:
| 2013 | 2012
Three months ended March 31, | 28.3% | 28.9%
The Company's effective tax rate attributable to income from continuing operations for the three months ended March 31, 2013 is lower than the prior year's comparable period primarily due to the January 2013 extension of the U.S. federal research credit with retroactive effect to January 1, 2012, partially offset by income earned in jurisdictions with higher statutory tax rates such as the U.S., and certain expenses that are statutorily non-deductible for income tax purposes. The Company's effective tax rate attributable to income from continuing operations for the three months ended March 31, 2013 is lower than the statutory U.S. federal tax rate of 35% primarily as a result of income earned in jurisdictions with tax rates lower than the U.S. statutory rate, the U.S. federal tax benefit for domestic manufacturing activities and the U.S. federal research credit. These items are partially offset by net U.S. state taxes and certain expenses that are statutorily non-deductible for income tax purposes. Unrecognized Tax Benefits During the three months ended March 31, 2013, the Company's gross unrecognized tax benefits increased by $1.8 million as a result of tax positions taken in both the current and prior periods. During the three months ended March 31, 2013, the total amount of unrecognized tax benefits that, if recognized, would affect the Company's effective tax rate increased by $1.8 million. The Company recognizes interest and penalties related to unrecognized tax benefits as a component of its income tax expense. During the three months ended March 31, 2013, the Company recognized $0.3 million of interest and penalty expense related to unrecognized tax benefits in its condensed consolidated statement of operations. At March 31, 2013 and December 31, 2012, the total amount of accrued interest and penalty expense related to unrecognized tax benefits recorded in the Company's condensed consolidated balance sheet was $1.2 million and $1.0 million, respectively. During the next twelve months, it is reasonably possible that the Company's unrecognized tax benefits may increase by approximately $1.1 million due to a combination of tax positions expected to be taken during the remainder of the current year, the expiration of the statute of limitations on assessment, and settlements with tax authorities. Income Tax Examinations The Company's income tax returns are subject to examination by the U.S. federal, U.S. state and local, and non-U.S. tax authorities. The Internal Revenue Service (“IRS”) has completed its examinations of the Company's consolidated U.S. federal income tax returns through 2008. The Company's consolidated U.S. federal income tax returns for 2009 through 2011, together with those of acquired subsidiaries, remain open to examination. With few exceptions, the Company is no longer subject to U.S. state and local or non-U.S. income tax examinations for years before 2008. As of March 31, 2013, the Company and it is subsidiaries are under examination in various jurisdictions, including Germany (2006 through 2009), Hungary (2009 and 2010), and California (2007 and 2008). In addition, the Company's appeal of certain Canadian tax assessments (2007 through 2009) is on-going. Overall, the Company believes that adequate accruals have been provided for all jurisdictions' open years.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 136, 172 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43, 44, 45, 46, 47, 48, 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: 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 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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