Segments - Reconciliation of Net Income to Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Jan. 31, 2023	Oct. 31, 2022	Jul. 31, 2022	Jan. 31, 2022	Oct. 31, 2021	Jul. 31, 2021	Jan. 31, 2023	Jan. 31, 2022
Segment Reporting [Abstract]
Net income	$ 64,775	$ 103,153	$ 89,470	$ 61,383	$ 74,361	$ 61,202	$ 257,398	$ 196,946
Interest expense	16,943			15,429			47,659	43,830
Interest income	(180)			(40)			(390)	(67)
Provision for income taxes	23,697			21,211			91,722	64,951
Depreciation expense	15,162			13,816			45,213	40,444
Amortization expense	16,257			15,934			50,872	46,423
Stock appreciation rights	314			1,251			5,888	3,126
Redeemable noncontrolling interests and deferred compensation	368			182			1,203	1,085
Equity-based compensation	3,285			3,077			10,198	8,250
Severance and other permitted costs	(315)			273			416	669
Transaction costs (acquisitions and other)	476			921			1,154	3,889
Gain on disposal of assets	(411)			(252)			(614)	(474)
Effects of fair value adjustments to inventory	457			1,870			636	3,601
Adjusted EBITDA	$ 140,828			$ 135,055			$ 511,355	$ 412,673