Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
Jul. 30, 2022	Jul. 31, 2021	Apr. 30, 2022
Schedule of Investments [Line Items]
Gains on investments	$ 0	$ 87,827
Estimated fair value of debt	488,507		$ 489,777
Carrying value of debt	488,809		488,554
Vetsource
Schedule of Investments [Line Items]
Carrying value of investment	56,849	25,814	$ 56,849
Proceeds from sale of investment		56,849
Gain on sale of investment		31,035
Noncash gain on investments		31,035
Gain on investment put option		25,757
Carrying value, put option	$ 25,757
Gains on investments		$ 87,827

Equity Method Investment, Put Option, Carrying Value

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Unrealized Gain (Loss) On Investment Put Option

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Amount of gain (loss) on sale or disposal of an equity method investment.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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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.

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Amount of unrealized gain (loss) on investment.

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