Schedule II Valuation of Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balances at beginning of period	$ 7,306	$ 7,157	$ 5,005
Additions — Due to acquired businesses	0	388	0
Additions — Charged to expense	859	803	2,495
Deductions - written off	(810)	(1,042)	(343)
Balances at end of period	7,355	7,306	7,157
SEC Schedule, 12-09, Reserve, Inventory [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balances at beginning of period	23,009	16,309	13,404
Additions — Due to acquired businesses	0	2,957	0
Additions — Charged to expense	10,198	4,908	5,722
Deductions - written off	(3,330)	(1,165)	(2,817)
Balances at end of period	29,877	23,009	16,309
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balances at beginning of period	51,069	58,809	60,073
Additions — Due to acquired businesses	0	1,351	0
Additions — Charged to expense	48	4,168	6,204
Deductions - written off	(3,841)	(13,259)	(7,468)
Balances at end of period	$ 47,276	$ 51,069	$ 58,809