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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Summary of Components of Income Before Provision for Income Taxes

The components of income before income tax expense are as follows:

			Year ended
			December 31, 2023			December 31, 2022			December 31, 2021
			(in thousands)
Ireland			$	624,642		$	432,963		$	231,893
United States			(352,532)			(270,440)			(278,413)
Other			352,357			405,328			243,200
Income before income tax expense			$	624,467		$	567,851		$	196,680

Summary of Components of Provision for Income Taxes

The components of income tax expense are as follows:

			Year ended
			December 31, 2023			December 31, 2022			December 31, 2021
			(in thousands)
Income tax expense:
Current tax (benefit)/expense:
Ireland			$	80,427		$	53,248		$	18,469
United States			(42,428)			60,753			35,478
Other			59,153			70,395			48,003
Total current tax expense			97,152			184,396			101,950
Deferred tax (benefit)/expense:
Ireland			45,253			(6,166)			553
United States			(143,323)			(118,475)			(52,717)
Other			12,667			(344)			(8,452)
Total deferred tax benefit			(85,403)			(124,985)			(60,616)
Income tax expense allocated to continuing operations			11,749			59,411			41,334
Income tax expense was allocated to the following components of other comprehensive income:
Currency impact on long term funding			(3,903)			7,211			1,776
Cash flow hedge			301			—			—
Total			$	8,147		$	66,622		$	43,110

Schedule of Reconciliation of Consolidated Reported Provision for Income Taxes and Statutory Rate

The Company's consolidated reported income tax expense differed from the amount that would result from applying the Irish statutory rate as set forth below:

			Year ended
			December 31, 2023			December 31, 2022			December 31, 2021
			(in thousands)
Taxes at Irish statutory rate of 12.5% (2022:12.5%; 2021:12.5%)			$	78,058		$	70,980		$	24,586
Rate differential from amortization of intangible assets			(71,223)			(59,330)			(31,228)
Foreign and other income taxed at higher rates			35,778			52,464			51,273
Research & development tax incentives			(3,868)			(2,608)			(3,120)
Movement in valuation allowance			(1,068)			(777)			3,101
Effects of change in tax rates			3,154			(300)			(128)
(Decrease)/ increase in unrecognized tax benefits			(54,347)			8,392			5,246
Investor tax expense on foreign subsidiary earnings			39,165			—			—
Impact of stock compensation			(11,487)			(8,756)			(9,083)
Other			(2,413)			(654)			687
Income tax expense			$	11,749		$	59,411		$	41,334

Schedule of Tax Effects of Temporary Differences that Give Rise to Significant Portions of Deferred Tax Assets and Deferred Tax Liabilities

The tax effects of temporary differences and carryforwards that give rise to significant portions of deferred tax assets and deferred tax liabilities are presented below:

			December 31, 2023			December 31, 2022
			(in thousands)
Deferred tax liabilities:
Property, plant and equipment			$	7,547		$	10,927
Operating right-of-use-assets			16,108			23,260
Goodwill			39,014			37,150
Intangible assets			950,055			1,078,302
Investments in foreign subsidiaries			52,408			1,587
Other			7,982			7,467
Total deferred tax liabilities recognized			1,073,114			1,158,693
Deferred tax assets:
Operating loss and tax credits carryforwards			124,150			88,697
Property, plant and equipment			9,082			6,010
Operating lease liabilities			20,190			27,593
Intangible assets			2,166			3,602
Stock compensation			17,605			21,862
Other liabilities			84,928			66,933
Unearned revenue			23,748			66,565
Other			8,774			9,155
Total deferred tax assets			290,643			290,417
Valuation allowance for deferred tax assets			(42,967)			(43,379)
Deferred tax assets recognized			247,676			247,038
Overall net deferred tax liability			$	(825,438)		$	(911,655)

Schedule of Expected Expiry Dates of NOL's

The expected expiry dates of the US NOLs are as follows: 

			Federal NOL's			State NOL's
			(in thousands)
2024-2037			$	1,744		$	271,434
2038-2042			—			50,685
Indefinite			—			9,251
			$	1,744		$	331,370

Schedule of Reconciliation of Beginning and Ending Amount of Total Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of total unrecognized tax benefits is as follows:

			December 31, 2023			December 31, 2022			December 31, 2021
			(in thousands)
Unrecognized tax benefits at start of year			$	217,584		$	202,065		$	19,078
Increase related to acquired tax positions			—			—			170,047
Increase related to prior year tax positions			1,161			16,098			204
Decrease related to prior year tax positions			(918)			(5,442)			(1,695)
Increase related to current year tax positions			4,552			5,701			18,613
Settlements			—			—			(844)
Lapse of statute of limitations			(62,363)			(838)			(3,338)
Unrecognized tax benefits at end of year			$	160,016		$	217,584		$	202,065

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