ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 4,074,053	$ 3,983,398	$ 3,600,654
Total other comprehensive income (loss), net of tax	100,495	(26,011)	112,682
Ending balance	4,289,552	4,074,053	3,983,398
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(93,984)	(68,911)	(183,453)
OCI before reclassifications	102,831	(25,073)	114,542
Income taxes associated with OCI before reclassifications	0	0	0
Amounts reclassified from AOCI	0	0	0
Income taxes associated with amounts reclassified from AOCI	0	0	0
Total other comprehensive income (loss), net of tax	102,831	(25,073)	114,542
Ending balance	8,847	(93,984)	(68,911)
Unrealized Gain (Loss) on Derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	0	0	675
OCI before reclassifications	0	0	847
Income taxes associated with OCI before reclassifications	0	0	(203)
Amounts reclassified from AOCI	0	0	(1,732)
Income taxes associated with amounts reclassified from AOCI	0	0	413
Total other comprehensive income (loss), net of tax	0	0	(675)
Ending balance	0	0	0
Other
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	278	364	1,171
OCI before reclassifications	1,265	(86)	(807)
Income taxes associated with OCI before reclassifications	0	0	0
Amounts reclassified from AOCI	0	0	0
Income taxes associated with amounts reclassified from AOCI	0	0	0
Total other comprehensive income (loss), net of tax	1,265	(86)	(807)
Ending balance	1,543	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)	(181,607)
OCI before reclassifications	104,096	(25,159)	114,582
Income taxes associated with OCI before reclassifications	0	0	(203)
Amounts reclassified from AOCI	0	0	(1,732)
Income taxes associated with amounts reclassified from AOCI	0	0	413
Total other comprehensive income (loss), net of tax	104,096	(25,159)	113,060
Ending balance	10,390	(93,706)	(68,547)
Non-controlling Interests
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(3,435)	(2,583)	(2,205)
OCI before reclassifications	(3,601)	(852)	(378)
Income taxes associated with OCI before reclassifications	0	0	0
Amounts reclassified from AOCI	0	0	0
Income taxes associated with amounts reclassified from AOCI	0	0	0
Total other comprehensive income (loss), net of tax	(3,601)	(852)	(378)
Ending balance	(7,036)	(3,435)	(2,583)
Total AOCI
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(97,141)	(71,130)	(183,812)
OCI before reclassifications	100,495	(26,011)	114,204
Income taxes associated with OCI before reclassifications	0	0	(203)
Amounts reclassified from AOCI	0	0	(1,732)
Income taxes associated with amounts reclassified from AOCI	0	0	413
Total other comprehensive income (loss), net of tax	100,495	(26,011)	112,682
Ending balance	$ 3,354	$ (97,141)	$ (71,130)