| Cover | Feb. 06, 2020 |
| Cover page. | |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Document Type | 8-K |
| Document Period End Date | Feb. 6, 2020 |
| Entity Registrant Name | PRESTIGE CONSUMER HEALTHCARE INC. |
| Entity Central Index Key | 0001295947 |
| Amendment Flag | false |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-32433 |
| Entity Tax Identification Number | 20-1297589 |
| Entity Address, Address Line One | 660 White Plains Road |
| Entity Address, City or Town | Tarrytown |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10591 |
| City Area Code | 914 |
| Local Phone Number | 524-6800 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Trading Symbol | PBH |
| Security Exchange Name | NYSE |
