Debt - Additional Information (Details) - USD ($)	1 Months Ended	6 Months Ended
Feb. 29, 2020	Jun. 30, 2021
Debt Instrument [Line Items]
Line of credit facility, description		The External Debt Facilities contain a springing financial covenant requiring compliance with a ratio of first lien net indebtedness to consolidated EBITDA, applicable solely to the Revolving Facility. The financial covenant is tested on the last day of any fiscal quarter only if the aggregate principal amount of borrowings under the Revolving Facility and drawn but unreimbursed letters of credit exceed 35% of the total amount of commitments under the Revolving Facility on such day. We are currently in compliance with the covenants contained in our External Debt Facilities.
Quarterly unreimbursed letters of credit minimum percentage	35.00%
Debt instrument, maturity period		Feb. 28, 2025
Letters of credit outstanding		$ 8,000,000
Outstanding borrowings under revolving facility		$ 0
Term Loan Facility
Debt Instrument [Line Items]
Debt instrument, maturity period		Feb. 28, 2027
Debt instrument, periodic payment		$ 6,000,000
Debt instrument, voluntary principal payment		$ 100,000,000
External Debt Facilities \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, interest rate	1.75%
External Debt Facilities \| Term Loan Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity	$ 2,475,000,000
External Debt Facilities \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, maximum borrowing capacity	250,000,000
External Debt Facilities \| IPO Settlement Facility
Debt Instrument [Line Items]
Extinguishment of debt	$ 1,168,000,000

Quarterly unreimbursed letters of credit minimum percentage.

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ 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

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

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Balance Type:	debit
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- Definition

Amount of the required periodic payments applied to principal.

+ References

+ Details

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

+ References

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Details

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