Condensed Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands	Total	Total Shareholders’ Equity Attributable to MSC Industrial	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interest	Class A Common Stock	Class A Common Stock Common Stock	Class A Common Stock Retained Earnings	Class A Common Stock Treasury Stock	Class B Common Stock	Class B Common Stock Common Stock	Class B Common Stock Retained Earnings
Beginning Balance at Aug. 28, 2021			$ 740,867	$ 532,315	$ (17,984)	$ (104,384)	$ 11,001		$ 48				$ 9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Associate Incentive Plans			25,289
Associate Incentive Plans						1,796
Foreign Currency Translation Adjustment	$ (1,224)				(1,137)
Net Income	135,998			135,998			413
Repurchases of Class A Common Stock											$ (4,813)
Cash dividends declared on Common Stock										$ (70,605)				$ (12,981)
Dividend equivalents declared, net of cancellations				(444)
Foreign Currency Translation Adjustment	87						(87)
Ending Balance at Feb. 26, 2022	1,235,301	$ 1,223,974	766,156	584,283	(19,121)	(107,401)	11,327		48				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per common share (in usd per share)								$ 1,500				$ 1,500
Beginning Balance at Nov. 27, 2021			756,314	556,586	(22,065)	(108,138)	10,280		48				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Associate Incentive Plans			9,842
Associate Incentive Plans						991
Foreign Currency Translation Adjustment	3,768				2,944
Net Income	69,931			69,931			223
Repurchases of Class A Common Stock											(254)
Cash dividends declared on Common Stock										(35,356)				(6,490)
Dividend equivalents declared, net of cancellations				(388)
Foreign Currency Translation Adjustment	(824)						824
Ending Balance at Feb. 26, 2022	1,235,301	1,223,974	766,156	584,283	(19,121)	(107,401)	11,327		48				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per common share (in usd per share)								750				750
Beginning Balance at Sep. 03, 2022	1,362,283		798,408	681,292	(23,121)	(106,202)	11,849		48				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Associate Incentive Plans			25,915						1
Associate Incentive Plans						1,851
Foreign Currency Translation Adjustment	3,819				2,684
Net Income	160,454			160,454			73
Repurchase and retirement of Class A Common Stock	(55)			(26,522)
Repurchases of Class A Common Stock											(4,430)
Cash dividends declared on Common Stock										(74,639)				(13,674)
Dividend equivalents declared, net of cancellations				(1,085)
Foreign Currency Translation Adjustment	(1,135)						1,135
Ending Balance at Mar. 04, 2023	1,433,991	1,420,934	824,268	725,826	(20,437)	(108,781)	13,057		49				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per common share (in usd per share)								1,580				1,580
Beginning Balance at Dec. 03, 2022			814,493	703,565	(22,186)	(109,592)	12,082		49				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Associate Incentive Plans			9,800
Associate Incentive Plans						1,014
Foreign Currency Translation Adjustment	2,549				1,749
Net Income	79,140			79,140			175
Repurchase and retirement of Class A Common Stock	(25)			(12,240)
Repurchases of Class A Common Stock											$ (203)
Cash dividends declared on Common Stock										$ (37,269)				$ (6,837)
Dividend equivalents declared, net of cancellations				(533)
Foreign Currency Translation Adjustment	(800)						800
Ending Balance at Mar. 04, 2023	$ 1,433,991	$ 1,420,934	$ 824,268	$ 725,826	$ (20,437)	$ (108,781)	$ 13,057		$ 49				$ 9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per common share (in usd per share)								$ 790				$ 790