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Debt - Two Thousand Fifteen Credit Facility - Additional Information (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Jul. 01, 2021 | Dec. 31, 2020
Debt Instrument [Line Items] |  |  |  |
Total interest expense and commitments fees | $ 11,000,000 | $ 2,000,000 |  |
2015 Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total interest expense and commitments fees | 1,000,000 | 1,000,000 |  |
2015 Credit Facility | Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Borrowing capacity under Credit Facility | $ 500,000,000 |  |  |
Credit facility, maturity date | May 12, 2024 |  |  |
Line Of Credit Facility Unused Capacity Commitment Fee Percentage | 0.50% |  |  |
Outstanding borrowings | $ 0 |  |  | $ 0
Amount borrowed |  | 700,000,000 |  |
2015 Credit Facility | Revolving Credit Facility | LIBOR |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate | 2.25% |  |  |
Floor Interest Rate | 1.00% |  |  |
2015 Credit Facility | Letter of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Borrowing capacity under Credit Facility | $ 15,000,000 |  |  |
Letters of credit outstanding amount | 4,000,000 |  |  |
2015 Credit Facility | Borrowings On Same Day Notice |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Borrowing capacity under Credit Facility | $ 40,000,000 |  |  |
2015 Credit Facility | Amended 2015 Credit Facility in May 2020 and December 2020 | Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility, maturity date | May 12, 2022 |  |  |
Minimum liquidity required | $ 150,000,000 |  |  |
Credit facility, extended maturity date | May 12, 2024 |  |  |
Credit Facility, description | We amended the 2015 Credit Facility in May 2020 and December 2020 to, among other things: • suspend the leverage ratio covenant for quarterly testing of compliance beginning in the second quarter of 2020 until the earlier of (a) the first day after June 30, 2021 through maturity on which borrowings and other revolving credit utilizations under the revolving commitments exceed $200 million, and (b) the election of the Company, at which time the leverage ratio covenant will be reinstated (the “Leverage Covenant Holiday”), and replace it with a minimum liquidity covenant during the Leverage Covenant Holiday, that requires us to maintain $150 million of unrestricted cash, cash equivalents and short-term investments less deferred merchant payables plus available revolver capacity; • decrease the aggregate amount of revolving loan commitments available to $500 million from $1.2 billion; • extend the maturity date of the 2015 Credit Facility from May 12, 2022 to May 12, 2024; and • secure the obligations under the agreement. |  |  |
2015 Credit Facility | Amended 2015 Credit Facility in May 2020 and December 2020 | Revolving Credit Facility | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Borrowing capacity under Credit Facility | $ 500,000,000 |  |  |
2015 Credit Facility | Amended 2015 Credit Facility in May 2020 and December 2020 | Revolving Credit Facility | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Borrowing capacity under Credit Facility |  | $ 1,200,000,000 |  |
2015 Credit Facility | Amended 2015 Credit Facility in May 2020 and December 2020 | Revolving Credit Facility | Scenario Forecast |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowings allowed under minimum liquidity covenant |  |  | $ 200,000,000 |

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- 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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