Segments and Other Geographic Reporting (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2025 USD ($)	Jan. 31, 2024 USD ($)	Jan. 31, 2025 USD ($) segment	Jan. 31, 2024 USD ($)	Jul. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment			2
Number of reportable segments | segment			2
Total service revenues and vehicle sales	$ 1,163,316	$ 1,020,149	$ 2,310,145	$ 2,040,565
Facility operations	490,056	409,178	986,602	817,679
Cost of vehicle sales	147,707	146,819	285,885	294,715
General and administrative	99,342	84,252	205,080	152,895
Operating income	426,211	379,900	832,578	775,276
Depreciation and amortization	54,199	45,262	107,826	88,426
Capital expenditures and acquisitions	174,080	123,029	412,095	379,702
Total assets	9,187,347		9,187,347		$ 8,427,764
Goodwill	509,670		509,670		513,909
Service revenues
Segment Reporting Information [Line Items]
Total service revenues and vehicle sales	991,281	861,745	1,977,617	1,721,281
Service revenues | United States | US
Segment Reporting Information [Line Items]
Total service revenues and vehicle sales	868,130	756,036	1,728,120	1,518,561
Service revenues | International | International
Segment Reporting Information [Line Items]
Total service revenues and vehicle sales	123,151	105,709	249,497	202,720
Vehicle sales
Segment Reporting Information [Line Items]
Total service revenues and vehicle sales	172,035	158,404	332,528	319,284
Vehicle sales | United States | US
Segment Reporting Information [Line Items]
Total service revenues and vehicle sales	106,715	74,690	194,265	153,072
Vehicle sales | International | International
Segment Reporting Information [Line Items]
Total service revenues and vehicle sales	65,320	83,714	138,263	166,212
Operating Segments | United States | US
Segment Reporting Information [Line Items]
Total service revenues and vehicle sales	974,845	830,726	1,922,385	1,671,633
Facility operations	418,824	343,689	842,441	693,283
Cost of vehicle sales	92,807	70,128	169,093	142,150
General and administrative	87,321	69,571	179,898	126,572
Operating income	375,893	347,338	730,953	709,628
Depreciation and amortization	46,455	38,344	92,370	75,280
Capital expenditures and acquisitions	153,212	83,861	365,129	299,992
Total assets	8,047,720		8,047,720		7,386,103
Goodwill	390,421		390,421		390,421
Operating Segments | International | International
Segment Reporting Information [Line Items]
Total service revenues and vehicle sales	188,471	189,423	387,760	368,932
Facility operations	71,232	65,489	144,161	124,396
Cost of vehicle sales	54,900	76,691	116,792	152,565
General and administrative	12,021	14,681	25,182	26,323
Operating income	50,318	32,562	101,625	65,648
Depreciation and amortization	7,744	6,918	15,456	13,146
Capital expenditures and acquisitions	20,868	$ 39,168	46,966	$ 79,710
Total assets	1,139,627		1,139,627		1,041,661
Goodwill	$ 119,249		$ 119,249		$ 123,488