Long-Term Debt - Schedule of Redemption Prices expressed as Percentages of Principal Amount (Detail) - Senior Notes Due 2026 [Member] |
1 Months Ended | 9 Months Ended |
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Aug. 31, 2018 |
Sep. 30, 2019 |
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| Debt Instrument Redemption [Line Items] | ||
| Redemption prices, expressed as percentages of principal amount | 100.00% | |
| 2021 [Member] | ||
| Debt Instrument Redemption [Line Items] | ||
| Redemption prices, expressed as percentages of principal amount | 103.625% | |
| 2022 [Member] | ||
| Debt Instrument Redemption [Line Items] | ||
| Redemption prices, expressed as percentages of principal amount | 101.813% | |
| 2023 and Thereafter [Member] | ||
| Debt Instrument Redemption [Line Items] | ||
| Redemption prices, expressed as percentages of principal amount | 100.00% |
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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. No definition available.
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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