XML 64 R48.htm IDEA: XBRL DOCUMENT v3.22.0.1

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

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, 2021			December 31, 2020			December 31, 2019
			(in thousands)
Ireland			$	231,893		$	280,310		$	323,726
United States			(278,413)			41,950			21,073
Other			243,200			58,945			82,190
Income before income tax expense			$	196,680		$	381,205		$	426,989

Summary of Components of Provision for Income Taxes

The components of income tax expense are as follows:

			Year ended
			December 31, 2021			December 31, 2020			December 31, 2019
			(in thousands)
Income tax expense:
Current tax expense:
Ireland			$	18,469		$	28,963		$	35,955
United States			35,478			3,022			5,073
Other			48,003			14,963			11,642
Total current tax expense			101,950			46,948			52,670
Deferred tax (benefit)/expense:
Ireland			553			1,654			2,833
United States			(52,717)			4,577			(3,502)
Other			(8,452)			(5,304)			(868)
Total deferred tax (benefit)/expense			(60,616)			927			(1,537)
Income tax expense allocated to continuing operations			41,334			47,875			51,133
Income tax expense was allocated to the following components of other comprehensive income:
Currency impact on long term funding			49			68			25
Total			$	41,383		$	47,943		$	51,158

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, 2021			December 31, 2020			December 31, 2019
			(in thousands)
Taxes at Irish statutory rate of 12.5% (2021:12.5%; 2020:12.5%)			$	24,586		$	47,651		$	53,374
Foreign and other income taxed at higher rates			20,045			7,943			7,356
Research & development tax incentives			(3,120)			(1,243)			(893)
Movement in valuation allowance			3,101			3,581			(10)
Effects of change in tax rates			(128)			108			359
Change in unrecognized tax benefits			5,246			(1,672)			(1,273)
Impact of stock compensation			(9,083)			(5,150)			(7,383)
Other			687			(3,343)			(397)
Income tax expense			$	41,334		$	47,875		$	51,133

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, 2021			December 31, 2020
			(in thousands)
Deferred tax liabilities:
Property, plant and equipment			$	19,606		$	1,359
Right-of-use-assets			33,449			9,402
Goodwill			33,354			31,629
Intangible assets			1,201,086			13,398
Other			1,761			1,009
Total deferred tax liabilities recognized			1,289,256			56,797
Deferred tax assets:
Operating loss and tax credits carryforwards			86,893			42,794
Property, plant and equipment			5,846			6,040
Lease liabilities			36,106			9,394
Intangible assets			4,596			—
Accrued expenses and unbilled revenue			69,198			24,368
Stock compensation			25,557			3,672
Deferred compensation			3,445			3,184
Unearned revenue			64,924			2,257
Other			602			155
Total deferred tax assets			297,167			91,864
Valuation allowance for deferred tax assets			(45,495)			(32,768)
Deferred tax assets recognized			251,672			59,096
Overall net deferred tax asset/(liability)			$	(1,037,584)		$	2,299

Schedule of Expected Expiry Dates of NOL's

The expected expiry dates of these US losses are as follows: 

			Federal NOL's			State NOL's
			(in thousands)
2022-2035			$	10,238		$	227,538
2036-2040			16			25,073
Indefinite			95			44,370
			$	10,349		$	296,981

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, 2021			December 31, 2020			December 31, 2019
			(in thousands)
Unrecognized tax benefits at start of year			$	19,078		$	20,156		$	21,433
Increase related to acquired tax positions			170,047			—			—
Increase related to prior year tax positions			204			401			—
Decrease related to prior year tax positions			(1,695)			(1,271)			—
Increase related to current year tax positions			18,613			2,931			1,588
Settlements			(844)			(369)			(347)
Lapse of statute of limitations			(3,338)			(2,770)			(2,518)
Unrecognized tax benefits at end of year			$	202,065		$	19,078		$	20,156

X

- Definition

Income Before Income Tax, Table

+ References

No definition available.

+ Details

Name:	iclr_IncomeBeforeIncomeTaxTableTextBlock
Namespace Prefix:	iclr_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319

+ Details

Name:	us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

+ Details

Name:	us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

+ Details

Name:	us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-URI http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319

+ Details

Name:	us-gaap_SummaryOfIncomeTaxContingenciesTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319

+ Details

Name:	us-gaap_SummaryOfOperatingLossCarryforwardsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration