Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Number Of Interest Rate Swap Agreements

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The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Nominal or face amount used to calculate payments on the derivative asset.

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Amount of gain (loss) from excluded component of derivative hedge, recognized in earnings. Excludes recognition under systematic and rational method.

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Amount of increase in the fair value of derivatives recognized in the income statement.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Derivative Financial Instruments - Additional Information (Details)	1 Months Ended		12 Months Ended
	Mar. 31, 2015 USD ($)	Mar. 31, 2008 USD ($) agreement	Apr. 27, 2019 USD ($)	Apr. 28, 2018 USD ($)	Apr. 29, 2017 USD ($)	Apr. 26, 2019 USD ($)	Jan. 31, 2019 USD ($)	Mar. 25, 2015 USD ($)	Jan. 31, 2014 USD ($)
Derivative [Line Items]
Gains or losses recognized in OCI on derivatives			$ 0		$ 0
Hedge ineffectiveness recorded			0	$ 0	$ 0
Cash flow hedge gain (loss) to be reclassified into earnings over the next twelve months			(2,900,000)
Interest Rate Cap
Derivative [Line Items]
Notional amount of derivatives			525,000,000
Interest Rate Cap, Funding II
Derivative [Line Items]
Notional amount of derivatives			100,000,000
Interest Rate Swap Agreement
Derivative [Line Items]
Notional amount of derivatives			553,719,000			$ 67,291,000	$ 539,400,000		$ 250,000,000
Number of interest rate swap agreements \| agreement		2
Notional amount of derivative asset		$ 100,000,000
Increase to other comprehensive income		$ 1,000,000
Percentage of senior notes									5.17%
Settlement of swap	$ 29,003,000		$ 89,000
Interest Rate Swap Agreement \| Senior Notes 3.48%
Derivative [Line Items]
Percentage of senior notes								3.48%
Aggregate principal amount								$ 250,000,000