Number of persons employed by the Entity

No definition available.

Name:	dei_EntityNumberOfEmployees
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Data Type:	xbrli:decimalItemType
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- Definition

Business Combination, Consideration Transferred, Cash Payment To Shareholders, Per Share Held

+ References

No definition available.

+ Details

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- Definition

Business Combination, Consideration Transferred, Shares Issued, Per Current Share Held To Shareholders

+ References

No definition available.

+ Details

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- Definition

Transaction And One Time Financing Costs

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460

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Balance Type:	debit
Period Type:	duration

- Definition

Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399

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Period Type:

Business Combinations - Narrative, PRA Acquisition (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Jul. 01, 2021 Employee $ / shares shares	Dec. 31, 2022 USD ($) Employee	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Number of employees \| Employee	38,000	41,100
Transaction and one time financing costs		$ 0	$ 75,391	$ 0
PRA Health Sciences, Inc
Business Acquisition [Line Items]
Business acquisition, share price (in USD per share) \| $ / shares	$ 80
Business acquisition, number of shares issued (in shares) \| shares	0.4125
Transaction and integration related (Note 6)		39,700	198,300
Acquisition related costs		800	57,100
Transaction and one time financing costs			$ 86,700
Gross debt issuance costs		$ 76,200