| Cover Page Document | Apr. 06, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Entity Central Index Key | 0000878526 |
| Title of 12(b) Security | Common Stock, $0.001 par value per share |
| Pre-commencement Issuer Tender Offer | false |
| Pre-commencement Tender Offer | false |
| Soliciting Material | false |
| Written Communications | false |
| Entity File Number | 000-33001 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 77-0154833 |
| Trading Symbol | NTUS |
| Security Exchange Name | NASDAQ |
| Amendment Flag | false |
| Document Period End Date | Apr. 6, 2020 |
| Entity Registrant Name | Natus Medical Inc |
| Entity Address, Address Line One | 6701 Koll Center Parkway, Suite 120 |
| Entity Address, City or Town | Pleasanton |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94566 |
| City Area Code | 925 |
| Local Phone Number | 223-6700 |
| Entity Emerging Growth Company | false |
