| Document and Entity Information Document and Entity Information | Mar. 30, 2020 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 30, 2020 |
| Entity Registrant Name | CAVCO INDUSTRIES INC. |
| Entity Central Index Key | 0000278166 |
| Entity Emerging Growth Company | false |
| Entity File Number | 000-08822 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 56-2405642 |
| Entity Address, Address Line One | 3636 North Central Avenue, Suite 1200 |
| Entity Address, City or Town | Phoenix |
| Entity Address, State or Province | AZ |
| Entity Address, Postal Zip Code | 85012 |
| City Area Code | 602 |
| Local Phone Number | 256-6263 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.01 |
| Trading Symbol | CVCO |
| Security Exchange Name | NASDAQ |
