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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

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, 2022			December 31, 2021			December 31, 2020
			(in thousands)
Ireland			$	432,963		$	231,893		$	280,310
United States			(270,440)			(278,413)			41,950
Other			405,328			243,200			58,945
Income before income tax expense			$	567,851		$	196,680		$	381,205

Summary of Components of Provision for Income Taxes

The components of income tax expense are as follows:

			Year ended
			December 31, 2022			December 31, 2021			December 31, 2020
			(in thousands)
Income tax expense:
Current tax expense:
Ireland			$	53,248		$	18,469		$	28,963
United States			60,753			35,478			3,022
Other			70,395			48,003			14,963
Total current tax expense			184,396			101,950			46,948
Deferred tax (benefit)/expense:
Ireland			(6,166)			553			1,654
United States			(118,475)			(52,717)			4,577
Other			(344)			(8,452)			(5,304)
Total deferred tax (benefit)/expense			(124,985)			(60,616)			927
Income tax expense allocated to continuing operations			59,411			41,334			47,875
Income tax expense was allocated to the following components of other comprehensive income:
Currency impact on long term funding			7,211			1,776			68
Total			$	66,622		$	43,110		$	47,943

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, 2022			December 31, 2021			December 31, 2020
			(in thousands)
Taxes at Irish statutory rate of 12.5% (2021:12.5%; 2020:12.5%)			$	70,980		$	24,586		$	47,651
Rate differential from amortization of intangible assets			(59,330)			(31,228)			(2,298)
Foreign and other income taxed at higher rates			52,464			51,273			10,241
Research & development tax incentives			(2,608)			(3,120)			(1,243)
Movement in valuation allowance			(777)			3,101			3,581
Effects of change in tax rates			(300)			(128)			108
Change in unrecognized tax benefits			8,392			5,246			(1,672)
Impact of stock compensation			(8,756)			(9,083)			(5,150)
Other			(654)			687			(3,343)
Income tax expense			$	59,411		$	41,334		$	47,875

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 that give rise to significant portions of deferred tax assets and deferred tax liabilities are presented below:

			December 31, 2022			December 31, 2021
			(in thousands)
Deferred tax liabilities:
Property, plant and equipment			$	10,927		$	19,606
Operating right-of-use-assets			23,260			33,449
Goodwill			37,150			33,354
Intangible assets			1,078,302			1,201,086
Other			9,054			1,761
Total deferred tax liabilities recognized			1,158,693			1,289,256
Deferred tax assets:
Operating loss and tax credits carryforwards			88,697			86,893
Property, plant and equipment			6,010			5,846
Operating lease liabilities			27,593			36,106
Intangible assets			3,602			4,596
Accrued expenses and unbilled revenue			64,016			69,198
Stock compensation			21,862			25,557
Deferred compensation			2,917			3,445
Unearned revenue			66,565			64,924
Other			9,155			602
Total deferred tax assets			290,417			297,167
Valuation allowance for deferred tax assets			(43,379)			(45,495)
Deferred tax assets recognized			247,038			251,672
Overall net deferred tax asset/(liability)			$	(911,655)		$	(1,037,584)

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)
2023-2036			$	5,268		$	249,530
2033-2041			—			145,632
Indefinite			95			6,736
			$	5,363		$	401,898

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, 2022			December 31, 2021			December 31, 2020
			(in thousands)
Unrecognized tax benefits at start of year			$	202,065		$	19,078		$	20,156
Increase related to acquired tax positions						170,047			—
Increase related to prior year tax positions			16,098			204			401
Decrease related to prior year tax positions			(5,442)			(1,695)			(1,271)
Increase related to current year tax positions			5,701			18,613			2,931
Settlements			—			(844)			(369)
Lapse of statute of limitations			(838)			(3,338)			(2,770)
Unrecognized tax benefits at end of year			$	217,584		$	202,065		$	19,078

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months.

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