Document and Entity Information - shares	9 Months Ended
	Apr. 30, 2017	May 23, 2017
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Trading Symbol	BRC
Entity Registrant Name	BRADY CORP
Entity Central Index Key	0000746598
Current Fiscal Year End Date	--07-31
Entity Filer Category	Large Accelerated Filer
Class A nonvoting common stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		47,758,478
Class B voting common stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		3,538,628