Document and Entity Information - shares	9 Months Ended
	Apr. 30, 2019	May 21, 2019
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 30, 2019
Document Fiscal Year Focus	2019
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
Entity Emerging Growth Company	false
Entity Small Business	false
Class A nonvoting common stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		49,125,192
Class B voting common stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		3,538,628