Document and Entity Information - USD ($)	12 Months Ended
	Mar. 30, 2019	May 17, 2019	Sep. 29, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	CAVCO INDUSTRIES INC.
Entity Central Index Key	0000278166
Document Type	10-K
Document Period End Date	Mar. 30, 2019
Document Fiscal Year Focus	2019
Amendment Flag	false
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--03-30
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1,100,588,456
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		9,098,320