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			39,444
Associate Incentive Plans						2,673
Foreign Currency Translation Adjustment	$ (682)				(1,048)
Net (Loss) Income	235,655			235,655			473
Repurchases of Class A Common Stock											$ (4,944)
Cash dividends declared on Common Stock										$ (106,060)				$ (19,472)
Dividend equivalents declared, net of cancellations				(994)
Foreign Currency Translation Adjustment	(366)						366
Ending Balance at May. 28, 2022	1,307,965	$ 1,296,125	780,311	641,444	(19,032)	(106,655)	11,840		48				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per common share (in usd per share)								$ 2,250				$ 2,250
Beginning Balance at Feb. 26, 2022			766,156	584,283	(19,121)	(107,401)	11,327		48				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Associate Incentive Plans			14,155
Associate Incentive Plans						877
Foreign Currency Translation Adjustment	542				89
Net (Loss) Income	99,657			99,657			60
Repurchases of Class A Common Stock											(131)
Cash dividends declared on Common Stock										(35,455)				(6,491)
Dividend equivalents declared, net of cancellations				(550)
Foreign Currency Translation Adjustment	(453)						453
Ending Balance at May. 28, 2022	1,307,965	1,296,125	780,311	641,444	(19,032)	(106,655)	11,840		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			40,753						1
Associate Incentive Plans						2,661
Foreign Currency Translation Adjustment	6,293				4,888
Net (Loss) Income	255,634			255,634			32
Repurchase and retirement of Class A Common Stock	(55)			(26,522)
Repurchases of Class A Common Stock											(4,495)
Cash dividends declared on Common Stock										(111,973)				(20,511)
Dividend equivalents declared, net of cancellations				(1,555)
Foreign Currency Translation Adjustment	(1,405)						1,405
Ending Balance at Jun. 03, 2023	1,502,546	1,489,260	839,106	776,365	(18,233)	(108,036)	13,286		49				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per common share (in usd per share)								2,370				2,370
Beginning Balance at Mar. 04, 2023			824,268	725,826	(20,437)	(108,781)	13,057		49				9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Associate Incentive Plans			14,838
Associate Incentive Plans						810
Foreign Currency Translation Adjustment	2,474				2,204
Net (Loss) Income	95,180			95,180			(41)
Repurchases of Class A Common Stock											$ (65)
Cash dividends declared on Common Stock										$ (37,334)				$ (6,837)
Dividend equivalents declared, net of cancellations				(470)
Foreign Currency Translation Adjustment	(270)						270
Ending Balance at Jun. 03, 2023	$ 1,502,546	$ 1,489,260	$ 839,106	$ 776,365	$ (18,233)	$ (108,036)	$ 13,286		$ 49				$ 9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per common share (in usd per share)								$ 790				$ 790