Recapitalization - Additional Information (Detail) - 2018 Recapitalization [Member] - USD ($) $ in Millions	Apr. 24, 2018	Mar. 25, 2018
2018 Notes [Member]
Debt Instrument [Line Items]
Scheduled principal payments in year 2018		$ 4.1
Scheduled principal payments in year 2019		8.3
Scheduled principal payments in year 2020		8.3
Scheduled principal payments in year 2021		8.3
Scheduled principal payments in year 2022		8.3
Scheduled principal payments in year 2023		8.3
Scheduled principal payments in year 2024		8.3
Scheduled principal payments in year 2025		401.4
Scheduled principal payments in year 2026		4.0
Scheduled principal payments in year 2027		$ 366.0
Subsequent Event [Member] \| 2018 A-2-I Notes [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 425.0
Debt instrument, stated percentage	4.116%
Debt instrument, term	7 years 6 months
Subsequent Event [Member] \| 2018 A-2-II Notes [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 400.0
Debt instrument, stated percentage	4.328%
Debt instrument, term	9 years 3 months
Subsequent Event [Member] \| 2018 Notes [Member]
Debt Instrument [Line Items]
Gross proceeds from the issuance of debt	$ 825.0

Long term debt maturities repayments of principal in year eight.

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Long term debt maturities repayments of principal in year nine.

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Long term debt maturities repayments of principal in year seven.

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Long term debt maturities repayments of principal in year six.

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Long term debt maturities repayments of principal in year ten.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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