Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
OPERATING ACTIVITIES
Net Income (Loss) Attributable to Parent	$ (44,246,000)	$ 57,626,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	72,703,000	76,482,000
Net loss (gain) on disposal of property, plant and equipment	516,000	(2,008,000)
Reduction in the carrying amount of operating lease right-of-use assets	20,823,000	20,252,000
Amortization of debt issuance costs	651,000	1,901,000
Unrealized gain on foreign exchange forward contracts	7,000	1,720,000
Stock-based compensation expense	3,399,000	3,543,000
Deferred income taxes	(24,424,000)	(8,363,000)
Pension settlement	69,452,000	0
Pension contributions and related (income) expense	710,000	(1,505,000)
Contributions of employer stock to employee benefit plan	2,938,000	3,743,000
Other non-cash items	(823,000)	1,899,000
Changes in operating assets and liabilities:
Customer receivables	(4,436,000)	(43,564,000)
Income taxes receivable	(8,989,000)	(4,070,000)
Inventories	(46,054,000)	(36,101,000)
Prepaid expenses and other assets	(7,039,000)	(6,606,000)
Accounts payable	(5,744,000)	31,293,000
Accrued compensation and related expenses	(12,533,000)	9,309,000
Operating lease liabilities	(18,345,000)	(18,161,000)
Marketing and other accrued expenses	(11,603,000)	23,559,000
Net cash (used) provided by operating activities	(13,051,000)	107,509,000
INVESTING ACTIVITIES
Payments to acquire property, plant and equipment	(29,812,000)	(25,479,000)
Proceeds from sales of property, plant and equipment	5,000	3,872,000
Investment in promotional displays	(5,959,000)	(7,757,000)
Net cash used by investing activities	(35,766,000)	(29,364,000)
FINANCING ACTIVITIES
Payments of long-term debt	(40,288,000)	(81,889,000)
Proceeds from Issuance of Long-term Debt	25,000,000	0
Repurchase of common stock	25,000,000	0
Withholding of employee taxes related to stock-based compensation	(1,089,000)	(1,351,000)
Debt issuance cost	(6,000)	(172,000)
Net cash used by financing activities	(41,383,000)	(83,412,000)
Net decrease in cash and cash equivalents	(90,200,000)	(5,267,000)
Cash and cash equivalents, beginning of period	91,071,000	97,059,000
Cash and cash equivalents, end of period	871,000	91,792,000
Non-cash investing and financing activities:
Property, plant and equipment included in accounts payable at period end	2,108	1,130
Cash paid during the period for:
Interest	6,945	11,757
Income taxes	$ 17,677	$ 31,830