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v3.19.2

Long-Term Debt - Additional Information (Detail) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2019 USD ($) | Dec. 31, 2018 USD ($) | Apr. 17, 2018 USD ($)
Debt Instrument [Line Items] |  |  |
Maximum consolidated debt reduction for unrestricted cash and cash equivalents for debt covenant calculation | $ 200,000,000 |  |
Outstanding letters of credit | 35,300,000 |  |
Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Reduction of consolidated debt in the debt ratio calculation | $ 50,000,000 |  |
Including Acquisition Bridge Debt | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Debt covenant | 3.50 |  |
Excluding Acquisition Bridge Debt | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Debt covenant | 3.75 |  |
Revolving Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility commitment | $ 700,000,000 |  |
Debt instrument maturity period | Dec. 05, 2023 |  |
Senior unsecured revolving facility, maturity period | 5 years |  |
Revolving facility, borrowings outstanding | $ 0 | $ 0 |
Outstanding letters of credit | $ 2,300,000 | $ 2,300,000 |
Trade Receivable Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit facility commitment |  |  | $ 400,000,000
Debt instrument maturity period | Sep. 25, 2019 |  |
Trade Receivable Facility | London Interbank Offered Rate(LIBOR) |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 0.725% |  |

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- Definition The amount by which consolidated debt, for purposes of calculating the debt covenant ratio, may be reduced for unrestricted cash and cash equivalents, provided no amounts are outstanding under the revolving credit facility and the AR credit facility. + References No definition available. + Details
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- Definition Maximum consolidated debt reduction for unrestricted cash and cash equivalents for debt covenant calculation. + 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=6877327&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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