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Income Taxes (Notes) | 3 Months Ended
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Jun. 30, 2018
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes The provision for income taxes reflects tax on foreign earnings and federal and state tax on U.S. earnings. The Company had an effective tax rate of 5.2% for the three months ended June 30, 2018 and a negative effective tax rate of 2.6% for the three months ended June 30, 2017. The Company's effective tax rate for the three months ended June 30, 2018 is higher compared to the prior year primarily due to the impact of the new Global Intangible Low-Taxed Income (“GILTI”) tax in the United States, offset by pre-tax losses in higher tax jurisdictions and tax benefits from increased tax credit generation. The Company's effective tax rate is different than statutory rates in the U.S. due primarily to various purchase accounting adjustments from the Microsemi acquisition as well as one-time discrete tax benefits related to changes in U.S. and foreign tax laws. In addition, the Company has numerous tax holidays it receives related to its Thailand manufacturing operations based on its investment in property, plant and equipment in Thailand, as well as Microsemi’s tax holiday in Malaysia that effectively reduces its Malaysia net income tax rate to zero in that jurisdiction. The Company's tax holiday periods in Thailand expire at various times in the future, however, the Company actively seeks to obtain new tax holidays. The Company does not expect the future expiration of any of its tax holiday periods in Thailand to have a material impact on its effective tax rate. Microsemi’s tax holiday in Malaysia was granted in 2009 and is effective through December 2019, subject to continued compliance with the tax holiday’s requirements. The material components of foreign income taxed at a rate lower than the U.S. are earnings accrued in Thailand, Malta and Ireland. The Company files U.S. federal, U.S. state, and foreign income tax returns. For U.S. federal, and in general for U.S. state tax returns, the fiscal 2005 and later tax years remain effectively open for examination by tax authorities. For foreign tax returns, the Company is generally no longer subject to income tax examinations for years prior to fiscal 2007. The Company recognizes liabilities for anticipated tax audit issues in the U.S. and other domestic and international tax jurisdictions based on its estimate of whether, and the extent to which, additional tax payments are more likely than not. The Company believes that it has appropriate support for the income tax positions taken and to be taken on its tax returns and that its accruals for tax liabilities are adequate for all open years based on an assessment of many factors including past experience and interpretations of tax laws applied to the facts of each matter. The Company believes it maintains appropriate reserves to offset any potential income tax liabilities that may arise upon final resolution of matters for open tax years. If such reserve amounts ultimately prove to be unnecessary, the resulting reversal of such reserves could result in tax benefits being recorded in the period the reserves are no longer deemed necessary. If such amounts prove to be less than an ultimate assessment, a future charge to expense would be recorded in the period in which the assessment is determined. The following tables summarize the activity related to the Company’s gross unrecognized tax benefits for the three months ended June 30, 2018 and the year ended March 31, 2018 (in millions):
| Three Months Ended June 30, 2018
Balance at March 31, 2018 | $ | 436.0 |
Increases related to acquisitions | 284.0 |
Decreases related to settlements with tax authorities | — |
Decreases related to statute of limitation expirations | (2.2 | )
Increases related to current year tax positions | 3.5 |
Decreases related to prior year tax positions | (11.6 | )
Balance at June 30, 2018 | $ | 709.7 |
| Year Ended March 31, 2018
Balance at March 31, 2017 | $ | 398.5 |
Increases related to acquisitions | — |
Decreases related to settlements with tax authorities | (0.1 | )
Decreases related to statute of limitation expirations | (10.9 | )
Increases related to current year tax positions | 30.3 |
Increases related to prior year tax positions | 18.2 |
Balance at March 31, 2018 | $ | 436.0 |
As of June 30, 2018, the Company had accrued approximately $36.4 million related to the potential payment of interest on the Company’s uncertain tax positions. The current year increase to the potential payment of interest is primarily composed of a $23.2 million increase related to acquisitions. As of March 31, 2018, the Company had accrued approximately $12.9 million related to the potential payment of interest on the Company’s uncertain tax positions. As of June 30, 2018, the Company had accrued for approximately $72.8 million of penalties related to its uncertain tax positions. The current year increase to the potential payment of penalties is primarily composed of a $15.8 million increase related to acquisitions. As of March 31, 2018, the Company had accrued for approximately $67.9 million of penalties related to its uncertain tax positions. On December 22, 2017, the Tax Cuts and Jobs Act (the "Act") was enacted into law. The Act provides for numerous significant tax law changes and modifications including the reduction of the U.S. federal corporate income tax rate from 35.0% to 21.0%, the requirement for companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred and the creation of new taxes on certain foreign-sourced earnings. Accounting Standards Codification ("ASC") 740, Income Taxes, requires companies to recognize the effect of the tax law changes in the period of enactment. However, the SEC staff issued Staff Accounting Bulletin ("SAB") 118 which allows companies to record provisional amounts during a measurement period that is similar to the measurement period used when accounting for business combinations. The Company recorded a reasonable estimate when measurable and with the understanding that the provisional amount is subject to further adjustments under SAB 118. In addition, for significant items for which the Company could not make a reasonable estimate, no provisional amounts were recorded. Amounts will be recorded during the measurement period allowed under SAB 118 when a reasonable estimate can be made, or when the effect of the Act is known. As of March 31, 2018, the Company made a reasonable estimate of the effects on the one-time transition tax, its existing deferred tax balances and the release of its valuation allowances on foreign tax credits due to the Act, and the Company recognized a provisional amount of income tax expense of $471.6 million, which decreased diluted net income per common share by $1.89 for the fiscal year ended March 31, 2018 and which was included as a component of income tax provision from continuing operations. As of June 30, 2018, the Company has not made any adjustments to the provisional estimates recorded on the financial statements for the fiscal year ended March 31, 2018. The Company will continue to refine what the provisional balances and adjustments may be made under SAB 118 during the measurement period as a result of future changes in interpretation, information available, assumptions made by the Company and/or issuance of additional guidance and these adjustments could be material. The Company has not yet completed its calculation of the total post-1986 E&P for its foreign subsidiaries. The one-time transition tax is based in part on the amount of those earnings held in cash and other specified assets either as of the end of fiscal 2018 or the average of the year-end balances for fiscal 2016 and fiscal 2017. The Company's calculation of this amount will change with further analysis and guidance from the U.S. federal and state tax authorities about the application of these new rules. The Company will continue to evaluate the impact of the tax law change as it relates to the accounting for the outside basis difference of its foreign entities. On July 24, 2018, the Ninth Circuit Court of Appeals issued an opinion in Altera Corp. v. Commissioner requiring related parties in an intercompany cost-sharing arrangement to share expenses related to share-based compensation. This opinion reversed the prior decision of the United States Tax Court. On August 7, 2018, the decision on July 24, 2018 was withdrawn. We will continue to monitor the case and will quantify the potential impact as more information is available.

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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 Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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