Investments in Unconsolidated Affiliates - Schedule of Combined Financial Information for Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Feb. 29, 2024	Nov. 30, 2023	Aug. 31, 2023	Feb. 28, 2023	Nov. 30, 2022	Aug. 31, 2022	Feb. 29, 2024	Feb. 28, 2023	May 31, 2023
Investments in and Advances to Affiliates [Line Items]
Cash and cash equivalents		$ 227,310						$ 227,310		$ 422,268
Total assets		1,704,689						1,704,689		3,650,918
Current liabilities		202,288						202,288		717,558
Current maturities of long-term debt		267						267		264
Long-term debt		297,695						297,695		689,718
Other non-current liabilities		76,300						76,300		71,766
Equity		912,096						912,096		1,696,011
Total liabilities and equity		1,704,689						1,704,689		3,650,918
Net sales	[1]	316,755			$ 346,315			926,902	$ 1,049,694
Gross profit		73,112			78,971			206,020	229,428
Operating income		4,281			4,000			(17,411)	14,518
Depreciation and amortization		11,949			28,153			68,281	84,508
Income tax expense		18,471			7,391			34,041	20,709
Net earnings		22,000	$ 28,167	$ 99,703	50,258	$ 19,505	$ 65,244	149,869	135,007
Equity Method Investment, Nonconsolidated Investee, Other
Investments in and Advances to Affiliates [Line Items]
Cash and cash equivalents		86,533						86,533		36,988
Other current assets		574,099						574,099		661,700
Non-current assets		324,793						324,793		335,567
Total assets		985,425						985,425		1,034,255
Current liabilities		312,235						312,235		176,959
Current maturities of long-term debt		20,500						20,500		36,936
Long-term debt		349,377						349,377		349,215
Other non-current liabilities		137,275						137,275		139,228
Equity		166,038						166,038		331,917
Total liabilities and equity		985,425						985,425		$ 1,034,255
Net sales		497,938			511,663			1,579,992	1,727,225
Gross profit		171,497			154,980			492,812	467,664
Operating income		126,377			115,286			376,782	349,925
Depreciation and amortization		6,936			5,662			21,737	18,559
Interest expense		4,943			4,476			15,220	10,920
Income tax expense		549			791			1,900	1,604
Net earnings		$ 119,982			$ 111,505			$ 360,748	$ 342,574

[1] A reconciliation of net earnings from continuing operations (the most comparable GAAP financial measure) to consolidated adjusted EBITDA is included in the MD&A “Results of Operations” section of this Form 10-Q for the respective three and nine months ended February 29, 2024 and February 28, 2023.