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Income Tax Expense (Tables)
12 Months Ended
Mar. 31, 2023
Income Tax Expense [Abstract]  
Schedule of Income before Income Tax, Domestic and Foreign Income from continuing operations before income taxes was as follows:
Years Ended March 31,202320222021
United States operations$(16,759)$79,662 $326,991 
Ireland operations62,664 88,078 73,442 
Other locations operations111,443 146,763 117,100 
$157,348 $314,503 $517,533 
Schedule of Components of Income Tax Expense (Benefit) The components of the provision for income taxes related to income from continuing operations consisted of the following:
Years Ended March 31,202320222021
Current:
United States federal$138,208 $88,158 $57,550 
United States state and local33,234 21,438 16,272 
Ireland8,837 12,002 9,244 
Other locations61,446 53,354 36,699 
241,725 174,952 119,765 
Deferred:
United States federal(114,523)(73,833)7,523 
United States state and local(50,530)(17,124)(550)
Ireland(864)(739)(787)
Other locations(24,273)(11,623)(5,288)
(190,190)(103,319)898 
Total Provision for Income Taxes$51,535 $71,633 $120,663 
provision for taxes rate reconciliation The total provision for income taxes can be reconciled to the tax computed at the Ireland statutory tax rate as follows:
Years Ended March 31,202320222021
National statutory tax rate12.5 %12.5 %12.5 %
(Decrease) increase in accruals for uncertain tax positions(0.1)%0.2 %(0.1)%
U.S. state and local taxes, net of federal income tax benefit(10.8)%1.4 %2.4 %
(Decrease) increase in valuation allowances (0.1)%0.9 %0.3 %
U.S. research and development credit(1.8)%(0.8)%(0.5)%
U.S. foreign income tax credit(1.2)%(1.1)%(0.3)%
Difference in non-Ireland tax rates8.6 %12.6 %8.3 %
U.S. federal audit adjustments  %— %2.1 %
Impairment of nondeductible goodwill29.0 %— %— %
Excess tax benefit for equity compensation(2.7)%(5.1)%(1.9)%
Tax rate changes on deferred tax assets and liabilities0.4 %2.3 %0.4 %
 U.S. tax reform impact, GILTI and FDII(1.3)%(0.9)%(0.6)%
Capitalized acquisition, redomiciliation costs %1.8 %0.6 %
All other, net0.3 %(1.0)%0.1 %
Total Provision for Income Taxes32.8 %22.8 %23.3 %
Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible A reconciliation of the beginning and ending balances of the total amounts of unrecognized tax benefits is as follows:
20232022
Unrecognized Tax Benefits Balance at April 1$2,906 $2,295 
Increases for tax provisions of current year63 — 
Decreases for tax provisions of prior year (135)
Balances related to acquired/disposed businesses(503)746 
Other, including currency translation21 — 
Unrecognized Tax Benefits Balance at March 31$2,487 $2,906 
Schedule of Deferred Tax Assets and Liabilities The significant components of the deferred tax assets and liabilities recorded in our accompanying balance sheets at March 31, 2023 and 2022 were as follows:
March 31,20232022
Deferred Tax Assets:
Post-retirement benefit accrual$1,737 $2,086 
Compensation15,858 14,340 
Net operating loss carryforwards37,667 25,550 
Accrued expenses13,150 12,092 
Insurance2,268 2,561 
Deferred income23,967 20,688 
Bad debt3,763 2,187 
Research & experimental expenditures15,382 — 
Operating leases (1)
46,781 44,401 
Foreign tax credit carryforwards33,559 36,036 
Other11,701 8,579 
Deferred Tax Assets205,833 168,520 
Less: Valuation allowance20,315 24,691 
Total Deferred Tax Assets185,518 143,829 
Deferred Tax Liabilities:
Depreciation and depletion98,601 110,951 
Operating leases (1)
45,834 43,593 
Intangibles630,589 755,980 
Pension2,644 2,004 
Other3,186 3,473 
Total Deferred Tax Liabilities780,854 916,001 
Net Deferred Tax Assets (Liabilities)$(595,336)$(772,172)