Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	May 29, 2021	May 30, 2020	May 29, 2021	May 30, 2020
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 866,294	$ 834,972	$ 2,412,193	$ 2,444,667
Cost of goods sold	499,823	481,010	1,427,653	1,412,457
Gross profit	366,471	353,962	984,540	1,032,210
Operating expenses	257,336	242,751	741,156	748,519
Impairment loss (loss recovery)	(20,840)		5,886
Restructuring costs	1,349	1,359	26,943	5,871
Income from operations	128,626	109,852	210,555	277,820
Other income (expense):
Interest expense	(3,696)	(5,451)	(10,632)	(12,117)
Interest income	15	173	52	251
Other income (expense), net	1,131	(560)	1,724	(509)
Total other expense	(2,550)	(5,838)	(8,856)	(12,375)
Income before provision for income taxes	126,076	104,014	201,699	265,445
Provision for income taxes	31,141	25,900	49,639	66,323
Net income	94,935	78,114	152,060	199,122
Less: Net income attributable to noncontrolling interest	501	411	1,087	501
Net income attributable to MSC Industrial	$ 94,434	$ 77,703	$ 150,973	$ 198,621
Net income per common share:
Basic	$ 1.69	$ 1.40	$ 2.70	$ 3.58
Diluted	$ 1.68	$ 1.40	$ 2.69	$ 3.57
Weighted-average shares used in computing net income per common share:
Basic	55,944	55,563	55,814	55,435
Diluted	56,352	55,599	56,139	55,581