CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury Stock	Stockholders' equity attributable to THOR	Non-controlling interests
Beginning balance (in shares) at Jul. 31, 2022		66,059,403
Beginning balance at Jul. 31, 2022	$ 3,600,654	$ 6,606	$ 497,946	$ 3,813,261	$ (181,607)	$ (543,344)	$ 3,592,862	$ 7,792
Beginning balance (in shares) at Jul. 31, 2022						12,382,441
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	163,229			163,265			163,265	(36)
Purchase of treasury shares (in shares)						338,733
Purchases of treasury shares	(25,407)					$ (25,407)	(25,407)
Restricted stock unit activity (in shares)		274,669				93,925
Restricted stock unit activity	(4,268)	$ 27	2,629			$ (6,924)	(4,268)
Dividends per common share	(48,165)			(48,165)			(48,165)
Stock-based compensation expense	16,935		16,935				16,935
Other comprehensive income (loss)	85,152				85,561		85,561	(409)
Ending balance (in shares) at Jan. 31, 2023						12,815,099
Ending balance (in shares) at Jan. 31, 2023		66,334,072
Ending balance at Jan. 31, 2023	3,788,130	$ 6,633	517,510	3,928,361	(96,046)	$ (575,675)	3,780,783	7,347
Beginning balance (in shares) at Oct. 31, 2022		66,326,135
Beginning balance at Oct. 31, 2022	3,650,959	$ 6,633	509,579	3,925,365	(223,698)	$ (575,516)	3,642,363	8,596
Beginning balance (in shares) at Oct. 31, 2022						12,813,019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	25,806			27,080			27,080	(1,274)
Restricted stock unit activity (in shares)		7,937				2,080
Restricted stock unit activity	(771)		(612)			$ (159)	(771)
Dividends per common share	(24,084)			(24,084)			(24,084)
Stock-based compensation expense	8,543		8,543				8,543
Other comprehensive income (loss)	127,677				127,652		127,652	25
Ending balance (in shares) at Jan. 31, 2023						12,815,099
Ending balance (in shares) at Jan. 31, 2023		66,334,072
Ending balance at Jan. 31, 2023	3,788,130	$ 6,633	517,510	3,928,361	(96,046)	$ (575,675)	3,780,783	7,347
Beginning balance (in shares) at Jul. 31, 2023		66,344,340
Beginning balance at Jul. 31, 2023	$ 3,983,398	$ 6,634	539,032	4,091,563	(68,547)	$ (592,667)	3,976,015	7,383
Beginning balance (in shares) at Jul. 31, 2023	13,030,030					13,030,030
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 60,359			60,782			60,782	(423)
Purchase of treasury shares (in shares)	327,876					327,876
Purchases of treasury shares	$ (30,037)					$ (30,037)	(30,037)
Restricted stock unit activity (in shares)		515,398				177,287
Restricted stock unit activity	(14,558)	$ 52	1,635			$ (16,245)	(14,558)
Dividends per common share	(51,135)			(51,135)			(51,135)
Stock-based compensation expense	19,698		19,698				19,698
Other comprehensive income (loss)	$ (25,130)				(24,347)		(24,347)	(783)
Ending balance (in shares) at Jan. 31, 2024	13,535,193					13,535,193
Ending balance (in shares) at Jan. 31, 2024		66,859,738
Ending balance at Jan. 31, 2024	$ 3,942,595	$ 6,686	560,365	4,101,210	(92,894)	$ (638,949)	3,936,418	6,177
Beginning balance (in shares) at Oct. 31, 2023		66,686,498
Beginning balance at Oct. 31, 2023	3,923,590	$ 6,669	551,491	4,119,589	(128,471)	$ (633,817)	3,915,461	8,129
Beginning balance (in shares) at Oct. 31, 2023						13,480,026
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 5,326			7,217			7,217	(1,891)
Purchase of treasury shares (in shares)	0
Restricted stock unit activity (in shares)		173,240				55,167
Restricted stock unit activity	$ (5,487)	$ 17	(372)			$ (5,132)	(5,487)
Dividends per common share	(25,596)			(25,596)			(25,596)
Stock-based compensation expense	9,246		9,246				9,246
Other comprehensive income (loss)	$ 35,516				35,577		35,577	(61)
Ending balance (in shares) at Jan. 31, 2024	13,535,193					13,535,193
Ending balance (in shares) at Jan. 31, 2024		66,859,738
Ending balance at Jan. 31, 2024	$ 3,942,595	$ 6,686	$ 560,365	$ 4,101,210	$ (92,894)	$ (638,949)	$ 3,936,418	$ 6,177