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, 2019		65,189,907				10,126,434
Balance at beginning of period at Jul. 31, 2019	$ 2,095,228	$ 6,519	$ 416,382	$ 2,066,674	$ (57,004)	$ (348,146)	$ 2,084,425	$ 10,803
Net income	51,845			51,065			51,065	780
Restricted stock unit activity (in shares)		206,624				71,341
Restricted stock unit activity	(2,306)	$ 21	1,436			$ (3,763)	(2,306)
Dividends per common share	(22,080)			(22,080)			(22,080)
Stock-based compensation expense	5,013		5,013				5,013
Other comprehensive income (loss)	(2,729)				(2,587)		(2,587)	(142)
Ending balance (in shares) at Oct. 31, 2019		65,396,531				10,197,775
Ending balance at Oct. 31, 2019	2,124,971	$ 6,540	422,831	2,095,659	(59,591)	$ (351,909)	2,113,530	11,441
Beginning balance (in shares) at Jul. 31, 2020		65,396,531				10,197,775
Balance at beginning of period at Jul. 31, 2020	2,345,569	$ 6,540	436,828	2,201,330	26,993	$ (351,909)	2,319,782	25,787
Net income	115,639			113,757			113,757	1,882
Restricted stock unit activity (in shares)		255,039				87,554
Restricted stock unit activity	(8,094)	$ 25	198			$ (8,317)	(8,094)
Dividends per common share	(22,700)			(22,700)			(22,700)
Stock-based compensation expense	5,768		5,768				5,768
Other comprehensive income (loss)	(15,661)				(15,774)		(15,774)	113
Ending balance (in shares) at Oct. 31, 2020		65,651,570				10,285,329
Ending balance at Oct. 31, 2020	$ 2,420,521	$ 6,565	$ 442,794	$ 2,292,387	$ 11,219	$ (360,226)	$ 2,392,739	$ 27,782