Other Long-Term Liabilities (Detail) - USD ($) $ in Thousands	Jan. 26, 2019	Apr. 28, 2018	Jan. 27, 2018
Other Long-Term Liabilities
Deferred rent	$ 51,747	$ 50,720	$ 52,087
Insurance liabilities	12,675	12,589	13,498
Asset retirement obligations	15,055	11,629	13,207
Tax liabilities and reserves	5,124	5,124	8,711
Other	3,201	4,209	4,209
Total other long-term liabilities	$ 87,802	$ 84,271	$ 91,712

Carrying value as of the balance sheet date of obligations incurred through that date and due beyond one year (or beyond one operating cycle if longer) to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverages to employees.

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Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, more than one year after the balance sheet date.

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Amount recognized for uncertainty in income taxes classified as noncurrent.

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Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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No definition available.

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Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are expected to be paid after one year (or the normal operating cycle, if longer), from the balance sheet date.

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