Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2025	Oct. 31, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 4,289,552	$ 4,074,053
Total other comprehensive income, net of tax	19,860	11,943
Ending balance	4,299,273	4,061,956
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	8,847	(93,984)
OCI before reclassifications	19,850	11,901
Total other comprehensive income, net of tax	19,850	11,901
Ending balance	28,697	(82,083)
Other
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	1,543	278
OCI before reclassifications	0	0
Total other comprehensive income, net of tax	0	0
Ending balance	1,543	278
AOCI, net of tax, Attributable to THOR
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	10,390	(93,706)
OCI before reclassifications	19,850	11,901
Total other comprehensive income, net of tax	19,850	11,901
Ending balance	30,240	(81,805)
Non-controlling Interests
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(7,036)	(3,435)
OCI before reclassifications	10	42
Total other comprehensive income, net of tax	10	42
Ending balance	(7,026)	(3,393)
Total AOCI
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	3,354	(97,141)
OCI before reclassifications	19,860	11,943
Total other comprehensive income, net of tax	19,860	11,943
Ending balance	$ 23,214	$ (85,198)