Long-Term Debt - Maturities (Details) - USD ($)	Jul. 31, 2019	Apr. 30, 2019
Debt maturities
2020 (remaining nine months)	$ 37,227,000
2021	43,649,000
2022	93,572,000
2023	34,261,000
2024	24,707,000
Thereafter	942,341,000
Total	1,175,757,000
First Lien Loan
Debt maturities
2020 (remaining nine months)	7,476,000
2021	9,968,000
2022	9,968,000
2023	9,968,000
2024	9,968,000
Thereafter	937,031,000
Total	984,379,000
Long Term Debt
Unamortized discount	2,059,000	$ 2,149,000
Deferred financing costs	11,566,000	12,072,000
ABL Facility
Debt maturities
2022	53,673,000
Total	53,673,000
Finance lease obligations
Debt maturities
2020 (remaining nine months)	22,446,000
2021	28,807,000
2022	25,493,000
2023	19,888,000
2024	12,958,000
Thereafter	4,451,000
Total	114,043,000
Installment notes
Debt maturities
2020 (remaining nine months)	4,264,000
2021	4,874,000
2022	4,438,000
2023	4,405,000
2024	1,781,000
Thereafter	859,000
Total	20,621,000
Long Term Debt
Unamortized discount	1,127,000	$ 1,200,000
Titan Facility
Debt maturities
2020 (remaining nine months)	3,041,000
Total	$ 3,041,000

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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