Quarterly report pursuant to Section 13 or 15(d)

Cover Page

Cover Page - shares
3 Months Ended
Mar. 31, 2020
Apr. 29, 2020
Cover [Abstract]    
Entity Address, Address Line One 6701 Koll Center Parkway, Suite 120  
Entity File Number 000-33001  
Entity Incorporation, State or Country Code DE  
Document Transition Report false  
Document Quarterly Report true  
Title of 12(b) Security Common Stock, $0.001 par value per share  
Trading Symbol NTUS  
Security Exchange Name NASDAQ  
Entity Small Business false  
Entity Registrant Name NATUS MEDICAL INC  
Entity Central Index Key 0000878526  
Document Type 10-Q  
Document Period End Date Mar. 31, 2020  
Amendment Flag false  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   33,802,042
Entity Emerging Growth Company false  
Entity Tax Identification Number 77-0154833  
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 Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false