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Coronavirus Pandemic ("COVID-19") - Additional Information (Detail) - USD ($) $ in Millions |  |  | 9 Months Ended
--- | --- | --- | ---
Mar. 27, 2020 | Mar. 25, 2020 | Sep. 30, 2020
Line of credit remaining borrowing capacity |  |  | $ 899.8
Senior Unsecurd Notes 2023 [Member] |  |  |
Debt Instrument Interest Rate |  |  | 5.25%
Senior Unsecurd Notes 2027 [Member] |  |  |
Debt Instrument Interest Rate |  |  | 6.25%
Letters of Credit [Member] |  |  |
Line of credit outstanding |  |  | $ 0.2
Forecast For Second And Third Quarters Of 2020 [Member] | Credit Agreement [Member] |  |  |
Estimated EBITDA |  | $ 139.2 |
Forecast For Second And Third Quarters Of 2020 [Member] | Credit Agreement [Member] | Maximum [Member] |  |  |
Leverage ratio |  | 5.00:1:00 |
Forecast For Second And Third Quarters Of 2020 [Member] | Credit Agreement [Member] | Minimum [Member] |  |  |
Leverage ratio |  | 4.50:1:00 |
Forecast For Fourth Quarter Of 2020 [Member] | Credit Agreement [Member] |  |  |
Leverage ratio |  | 4.75:1:00 |
Forecast For First Quarter Of 2021 [Member] | Credit Agreement [Member] |  |  |
Leverage ratio |  | 2020 |
Forecast For Second Quarter Of 2021 [Member] | Credit Agreement [Member] |  |  |
Credit Facility Borrowing Capacity |  | $ 300.0 |
COVID-19 [Member] |  |  |
Reimbursement of Lost Revenue | $ 100.0 |  |
Proceeds From Contribution In Aid Of Reimbursement of Lost Revenue |  |  | $ 20.0
Deferred Payment Of Social Security Taxes | % | 50.00% |  |
COVID-19 [Member] | Rural Area [Member] |  |  |
Reimbursement of Lost Revenue | $ 70.0 |  |
COVID-19 [Member] | Executive Officer [Member] |  |  |
Decrease In Salary | % |  |  | 50.00%

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