Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 4,074,053	$ 3,983,398
Total other comprehensive income (loss), net of tax	11,943	(60,646)
Ending balance	4,061,956	3,923,590
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(93,984)	(68,911)
OCI before reclassifications	11,901	(59,924)
Total other comprehensive income (loss), net of tax	11,901	(59,924)
Ending balance	(82,083)	(128,835)
Other
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	278	364
OCI before reclassifications	0	0
Total other comprehensive income (loss), net of tax	0	0
Ending balance	278	364
AOCI, net of tax, Attributable to THOR
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(93,706)	(68,547)
OCI before reclassifications	11,901	(59,924)
Total other comprehensive income (loss), net of tax	11,901	(59,924)
Ending balance	(81,805)	(128,471)
Non-controlling Interests
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(3,435)	(2,583)
OCI before reclassifications	42	(722)
Total other comprehensive income (loss), net of tax	42	(722)
Ending balance	(3,393)	(3,305)
Total AOCI
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(97,141)	(71,130)
OCI before reclassifications	11,943	(60,646)
Total other comprehensive income (loss), net of tax	11,943	(60,646)
Ending balance	$ (85,198)	$ (131,776)