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v3.20.4

Long-Term Debt (Credit Agreement (Details) - USD ($) $ in Millions | Jul. 24, 2018 | Dec. 31, 2020 | Jul. 23, 2018
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New Credit Agreement [Member] | Minimum [Member] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Line Of Credit Facility Permitted Increase | $ 25 |  |
New Credit Agreement [Member] | Maximum [Member] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Line Of Credit Facility Permitted Increase | 500 |  |
Revolving Credit Facility [Member] | New Credit Agreement [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  | $ 1,000 |
Revolving Credit Facility [Member] | New Credit Agreement [Member] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 1,000 |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  | 0 |
Letters of Credit Outstanding, Amount |  | $ 0 |
Revolving Credit Facility [Member] | New Credit Agreement [Member] | Minimum [Member] | LIBOR [Member] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |  |
Revolving Credit Facility [Member] | New Credit Agreement [Member] | Minimum [Member] | Alternate Base Rate [Domain] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.00% |  |
Revolving Credit Facility [Member] | New Credit Agreement [Member] | Maximum [Member] | LIBOR [Member] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.75% |  |
Revolving Credit Facility [Member] | New Credit Agreement [Member] | Maximum [Member] | Alternate Base Rate [Domain] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.75% |  |
Revolving Credit Facility [Member] | Credit Agreement [Member] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 1,000
Letter of Credit [Member] | New Credit Agreement [Member] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 150 |  |
Swingline Loan [Member] | New Credit Agreement [Member] | Senior Secured Revolving Credit Facility [Member] |  |  |
Credit Agreement [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 50 |  |

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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 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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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Fair value of the amount outstanding under the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + 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 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 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The permitted amount the line of credit facility may be increased by, under certain circumstances if certain lenders agree to commit to such an increase. + References No definition available. + Details
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- Details
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- Details
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