Income Taxes	9 Months Ended
Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Changes in Tax Law On December 22, 2017, H.R.1, also known as the Tax Cuts and Jobs Act (Tax Reform Act) was enacted into law. The Tax Reform Act includes significant changes to United States (US) corporate income tax law, including a permanent reduction in the federal corporate income tax rate from 35.0% to 21.0%, limitations on the deductibility of interest expense and executive compensation, the transition of the US tax regime from a worldwide tax system to a territorial tax system, and provisions aimed at preventing base erosion of the US tax base. Further, on December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118 (SAB 118) which provides guidance on accounting for the impact of the Tax Reform Act. SAB 118 provides a measurement period, which should not extend beyond one year from the enactment date, during which the Company may complete the accounting for the impacts of the Tax Reform Act under Accounting Standards Codification (ASC) Topic 740 (ASC 740). In accordance with SAB 118, the Company must reflect the income tax effects of the Tax Reform Act in the reporting period in which the accounting under ASC 740 is complete. In accordance with SAB 118, the Company completed its accounting for the effects of the Tax Reform Act during the three months ended December 31, 2018. The Company analyzed the effects of the Tax Reform Act, including collecting, preparing and analyzing necessary information regarding foreign earnings and profits, performing and refining calculations and obtaining additional guidance from such standard setting and regulatory bodies as the US Internal Revenue Service, US Treasury Department, and the FASB, among others. In connection with this analysis, the Company finalized its provisional estimates and recorded adjustments during the measurement period ending December 31, 2018, and filed its US federal income tax return for the fiscal year ended March 31, 2018. During the nine months ended December 31, 2018, the Company recorded adjustments to previously recorded provisional estimates for a decrease of $869 to US federal income tax expense and a decrease of $404 to state income tax expense associated with the one-time mandatory deemed repatriation tax on accumulated foreign earnings. The adjustments were driven by the Company's refinement of cumulative earnings and profits reported for periods through December 31, 2017 and the ongoing analysis and interpretation of state income tax laws resulting from the Tax Reform Act. Additionally, the Company recorded an increase of $662 to income tax expense due to the conversion of deferred tax assets to non-deductible executive compensation. This adjustment was driven by the application of additional guidance from the US Internal Revenue Service. The cumulative adjustments of $611 to income tax expense, during the nine months ended December 31, 2018, had an immaterial impact on the Company's effective tax rate. The Tax Reform Act includes other provisions with effective dates for the Company on and after January 1, 2018. Provisions impacting the fiscal year ending March 31, 2019 include, but are not limited to, limiting deductibility of meals, entertainment, and executive compensation. Based on facts and circumstances known as of December 31, 2018 and through February 1, 2019, these provisions did not have a material impact on the Company's condensed consolidated financial statements for the nine months ended December 31, 2018. The Company will continue to analyze future guidance from the US Internal Revenue Service, US Treasury Department, and the FASB to fully assess the potential impact on its condensed consolidated financial statements. Unrecognized Tax Benefits During the nine months ended December 31, 2018, the amount of gross unrecognized tax benefits and associated interest and penalties decreased to $11,367. The $1,451 decrease related to the release of $4,592 in accruals for settlements, statute of limitation expirations, interest, and penalties, offset by additional accruals of $3,141 for unrecognized tax benefits, interest, and penalties. Management believes it is reasonably possible that the amount of unrecognized tax benefits, as well as associated interest and penalties, may decrease during the next 12 months by approximately $4,037 related to the completion of examinations and other settlements with tax authorities and the expiration of statutes of limitations. Of this amount, $2,951 would result in an income tax benefit for the Company and $1,086 would result in a decrease to interest expense in the condensed consolidated statements of comprehensive income.

Income Taxes

Changes in Tax Law

On December 22, 2017, H.R.1, also known as the Tax Cuts and Jobs Act (Tax Reform Act) was enacted into law. The Tax Reform Act includes significant changes to United States (US) corporate income tax law, including a permanent reduction in the federal corporate income tax rate from 35.0% to 21.0%, limitations on the deductibility of interest expense and executive compensation, the transition of the US tax regime from a worldwide tax system to a territorial tax system, and provisions aimed at preventing base erosion of the US tax base. Further, on December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118 (SAB 118) which provides guidance on accounting for the impact of the Tax Reform Act. SAB 118 provides a measurement period, which should not extend beyond one year from the enactment date, during which the Company may complete the accounting for the impacts of the Tax Reform Act under Accounting Standards Codification (ASC) Topic 740 (ASC 740). In accordance with SAB 118, the Company must reflect the income tax effects of the Tax Reform Act in the reporting period in which the accounting under ASC 740 is complete.

In accordance with SAB 118, the Company completed its accounting for the effects of the Tax Reform Act during the three months ended December 31, 2018. The Company analyzed the effects of the Tax Reform Act, including collecting, preparing and analyzing necessary information regarding foreign earnings and profits, performing and refining calculations and obtaining additional guidance from such standard setting and regulatory bodies as the US Internal Revenue Service, US Treasury Department, and the FASB, among others. In connection with this analysis, the Company finalized its provisional estimates and recorded adjustments during the measurement period ending December 31, 2018, and filed its US federal income tax return for the fiscal year ended March 31, 2018.

During the nine months ended December 31, 2018, the Company recorded adjustments to previously recorded provisional estimates for a decrease of $869 to US federal income tax expense and a decrease of $404 to state income tax expense associated with the one-time mandatory deemed repatriation tax on accumulated foreign earnings. The adjustments were driven by the Company's refinement of cumulative earnings and profits reported for periods through December 31, 2017 and the ongoing analysis and interpretation of state income tax laws resulting from the Tax Reform Act. Additionally, the Company recorded an increase of $662 to income tax expense due to the conversion of deferred tax assets to non-deductible executive compensation. This adjustment was driven by the application of additional guidance from the US Internal Revenue Service. The cumulative adjustments of $611 to income tax expense, during the nine months ended December 31, 2018, had an immaterial impact on the Company's effective tax rate.

The Tax Reform Act includes other provisions with effective dates for the Company on and after January 1, 2018. Provisions impacting the fiscal year ending March 31, 2019 include, but are not limited to, limiting deductibility of meals, entertainment, and executive compensation. Based on facts and circumstances known as of December 31, 2018 and through February 1, 2019, these provisions did not have a material impact on the Company's condensed consolidated financial statements for the nine months ended December 31, 2018. The Company will continue to analyze future guidance from the US Internal Revenue Service, US Treasury Department, and the FASB to fully assess the potential impact on its condensed consolidated financial statements.

Unrecognized Tax Benefits

During the nine months ended December 31, 2018, the amount of gross unrecognized tax benefits and associated interest and penalties decreased to $11,367. The $1,451 decrease related to the release of $4,592 in accruals for settlements, statute of limitation expirations, interest, and penalties, offset by additional accruals of $3,141 for unrecognized tax benefits, interest, and penalties. Management believes it is reasonably possible that the amount of unrecognized tax benefits, as well as associated interest and penalties, may decrease during the next 12 months by approximately $4,037 related to the completion of examinations and other settlements with tax authorities and the expiration of statutes of limitations. Of this amount, $2,951 would result in an income tax benefit for the Company and $1,086 would result in a decrease to interest expense in the condensed consolidated statements of comprehensive income.