Long-Term Debt - Components (Details) - USD ($) $ in Thousands	Jul. 31, 2021	Apr. 30, 2021
Long-term debt
Long-term debt, gross	$ 1,073,138
Finance lease obligations	112,906	$ 117,948
Less current portion	46,687	46,018
Long-term debt	1,016,036	932,409
Term Loan Facility
Long-term debt
Long-term debt, gross	508,445	509,722
Unamortized discount and deferred financing costs	(4,444)	(4,735)
Senior Notes
Long-term debt
Long-term debt, gross	350,000	350,000
Unamortized discount and deferred financing costs	$ (5,324)	(5,485)
Interest rate	4.625%
ABL Facility
Long-term debt
Long-term debt, gross	$ 87,100	0
Installment Notes
Long-term debt
Long-term debt, gross	9,723	11,716
Unamortized discount	$ (647)	(739)
Interest rate	5.00%
Canadian Facility
Long-term debt
Long-term debt, gross	$ 4,964	0
Carrying value of debt	$ 1,062,723	$ 978,427

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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Present value of lessee's discounted obligation for lease payments from finance lease.

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