CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Stockholders' equity attributable to Thor	Common Stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury Stock	Non-controlling interests
Beginning balance (in shares) at Jul. 31, 2021			65,651,570
Beginning balance, treasury stock (in shares) at Jul. 31, 2021							10,285,329
Balance at beginning of period, net of tax at Jul. 31, 2021	$ 2,948,106	$ 2,921,843	$ 6,565	$ 460,482	$ 2,770,401	$ 44,621	$ (360,226)	$ 26,263
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	244,803	242,242			242,242			2,561
Restricted stock unit activity (in shares)			406,720				152,869
Restricted stock unit activity	(10,704)	(10,704)	$ 41	7,266			$ (18,011)
Dividends per common share	(23,917)	(23,917)			(23,917)
Stock-based compensation expense	6,027	6,027		6,027
Other comprehensive income (loss)	(32,812)	(32,652)				(32,652)		(160)
Acquisitions	739							739
Ending balance (in shares) at Oct. 31, 2021			66,058,290
Ending balance, treasury stock (in shares) at Oct. 31, 2021							10,438,198
Balance at end of period, net of tax at Oct. 31, 2021	3,132,242	3,102,839	$ 6,606	473,775	2,988,726	11,969	$ (378,237)	29,403
Beginning balance (in shares) at Jul. 31, 2022			66,059,403
Beginning balance, treasury stock (in shares) at Jul. 31, 2022							12,382,441
Balance at beginning of period, net of tax at Jul. 31, 2022	3,600,654	3,592,862	$ 6,606	497,946	3,813,261	(181,607)	$ (543,344)	7,792
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 137,423	136,185			136,185			1,238
Purchase of treasury shares (in shares)	338,733						338,733
Purchase of treasury shares	$ (25,407)	(25,407)					$ (25,407)
Restricted stock unit activity (in shares)			266,732				91,845
Restricted stock unit activity	(3,497)	(3,497)	$ 27	3,241			$ (6,765)
Dividends per common share	(24,081)	(24,081)			(24,081)
Stock-based compensation expense	8,392	8,392		8,392
Other comprehensive income (loss)	(42,525)	(42,091)				(42,091)		(434)
Ending balance (in shares) at Oct. 31, 2022			66,326,135
Ending balance, treasury stock (in shares) at Oct. 31, 2022							12,813,019
Balance at end of period, net of tax at Oct. 31, 2022	$ 3,650,959	$ 3,642,363	$ 6,633	$ 509,579	$ 3,925,365	$ (223,698)	$ (575,516)	$ 8,596