Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Cash flows from operating activities:
Net income	$ 280,014	$ 271,202
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	225,675	195,299
Amortization of debt issuance costs	1,112	1,258
Share-based compensation	29,382	22,009
(Gain) loss on disposal of assets and impairment charges	(869)	3,808
Deferred income taxes	56,967	13,554
Changes in assets and liabilities:
Receivables	(10,006)	(18,117)
Inventories	(33,579)	(35,238)
Prepaid expenses	(9,444)	(7,993)
Accounts payable	(12,910)	124,026
Accrued expenses	25,543	56,228
Income taxes	263	18,363
Other, net	(15,607)	18,680
Net cash provided by operating activities	536,541	663,079
Cash flows from investing activities:
Purchase of property and equipment	(228,208)	(263,077)
Payments for acquisition of businesses, net of cash acquired	(863,371)	(5,780)
Proceeds from sales of assets	26,504	4,823
Net cash used in investing activities	(1,065,075)	(264,034)
Cash flows from financing activities:
Proceeds from long-term debt	450,000	650,000
Payments of long-term debt	(14,226)	(570,999)
Payments of debt issuance costs	(1,149)	(5,525)
Net payments of short-term debt	0	(120,000)
Proceeds from exercise of stock options	133	1,665
Payments of cash dividends	(38,223)	(35,410)
Tax withholdings on employee share-based awards	(17,625)	(8,105)
Net cash provided by (used in) financing activities	378,910	(88,374)
Net (decrease) increase in cash and cash equivalents	(149,624)	310,671
Cash and cash equivalents at beginning of the period	336,545	78,275
Cash and cash equivalents at end of the period	186,921	388,946
Cash paid during the period for:
Interest, net of amount capitalized	34,800	32,862
Income taxes, net	27,387	48,137
Noncash investing and financing activities:
Purchased property and equipment in accounts payable	38,751	28,605
Right-of-use assets obtained in exchange for new finance lease liabilities	49,259	0
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 79,867	$ 1,109