ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	$ 3,600,654	$ 2,948,106	$ 2,345,569
Total other comprehensive income (loss), net of tax	112,682	(227,661)	17,711
Balance at end of period	3,983,398	3,600,654	2,948,106
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	(183,453)	54,152	46,512
OCI before reclassifications	114,542	(237,605)	7,640
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	114,542	(237,605)	7,640
Balance at end of period	(68,911)	(183,453)	54,152
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	675	(8,655)	(18,823)
OCI before reclassifications	847	3,775	(1,100)
Income taxes associated with OCI before reclassifications	(203)	(866)	327
Amounts reclassified from AOCI	(1,732)	8,502	14,433
Income taxes associated with amounts reclassified from AOCI	413	(2,081)	(3,492)
Total other comprehensive income (loss), net of tax	(675)	9,330	10,168
Balance at end of period	0	675	(8,655)
Other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	1,171	(876)	(696)
OCI before reclassifications	(807)	2,047	(180)
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	(807)	2,047	(180)
Balance at end of period	364	1,171	(876)
AOCI, net of tax, Attributable to THOR
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	(181,607)	44,621	26,993
OCI before reclassifications	114,582	(231,783)	6,360
Income taxes associated with OCI before reclassifications	(203)	(866)	327
Amounts reclassified from AOCI	(1,732)	8,502	14,433
Income taxes associated with amounts reclassified from AOCI	413	(2,081)	(3,492)
Total other comprehensive income (loss), net of tax	113,060	(226,228)	17,628
Balance at end of period	(68,547)	(181,607)	44,621
Non-controlling Interests
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	(2,205)	(772)	(855)
OCI before reclassifications	(378)	(1,433)	83
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	(378)	(1,433)	83
Balance at end of period	(2,583)	(2,205)	(772)
Total AOCI
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	(183,812)	43,849	26,138
OCI before reclassifications	114,204	(233,216)	6,443
Income taxes associated with OCI before reclassifications	(203)	(866)	327
Amounts reclassified from AOCI	(1,732)	8,502	14,433
Income taxes associated with amounts reclassified from AOCI	413	(2,081)	(3,492)
Total other comprehensive income (loss), net of tax	112,682	(227,661)	17,711
Balance at end of period	$ (71,130)	$ (183,812)	$ 43,849