Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	$ 3,600,654	$ 2,948,106
Total other comprehensive income (loss), net of tax	(42,525)	(32,812)
Balance at end of period, net of tax	3,650,959	3,132,242
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	(183,453)	54,152
OCI before reclassifications	(42,895)	(35,007)
Other Comprehensive Income (Loss) before Reclassifications, Tax	0	0
Amounts reclassified from AOCI	0	0
Income taxes associated with amounts reclassified from AOCI	0	0
Total other comprehensive income (loss), net of tax	(42,895)	(35,007)
Balance at end of period, net of tax	(226,348)	19,145
Unrealized Gain (Loss) on Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	675	(8,655)
OCI before reclassifications	1,123	585
Other Comprehensive Income (Loss) before Reclassifications, Tax	(269)	(132)
Amounts reclassified from AOCI	(62)	2,528
Income taxes associated with amounts reclassified from AOCI	12	(626)
Total other comprehensive income (loss), net of tax	804	2,355
Balance at end of period, net of tax	1,479	(6,300)
Other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	1,171	(876)
OCI before reclassifications	0	0
Other Comprehensive Income (Loss) before Reclassifications, Tax	0	0
Amounts reclassified from AOCI	0	0
Income taxes associated with amounts reclassified from AOCI	0	0
Total other comprehensive income (loss), net of tax	0	0
Balance at end of period, net of tax	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
OCI before reclassifications	(41,772)	(34,422)
Other Comprehensive Income (Loss) before Reclassifications, Tax	(269)	(132)
Amounts reclassified from AOCI	(62)	2,528
Income taxes associated with amounts reclassified from AOCI	12	(626)
Total other comprehensive income (loss), net of tax	(42,091)	(32,652)
Balance at end of period, net of tax	(223,698)	11,969
Non-controlling Interests
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	(2,205)	(772)
OCI before reclassifications	(434)	(160)
Other Comprehensive Income (Loss) before Reclassifications, Tax	0	0
Amounts reclassified from AOCI	0	0
Income taxes associated with amounts reclassified from AOCI	0	0
Total other comprehensive income (loss), net of tax	(434)	(160)
Balance at end of period, net of tax	(2,639)	(932)
Total AOCI
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period, net of tax	(183,812)	43,849
OCI before reclassifications	(42,206)	(34,582)
Other Comprehensive Income (Loss) before Reclassifications, Tax	(269)	(132)
Amounts reclassified from AOCI	(62)	2,528
Income taxes associated with amounts reclassified from AOCI	12	(626)
Total other comprehensive income (loss), net of tax	(42,525)	(32,812)
Balance at end of period, net of tax	$ (226,337)	$ 11,037