Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2019
Feb. 19, 2020
Jun. 30, 2019
Cover page.      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity File Number 000-33001    
Entity Registrant Name NATUS MEDICAL INC    
Entity Central Index Key 0000878526    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 77-0154833    
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    
Title of 12(b) Security Common Stock, $0.001 par value per share    
Trading Symbol NTUS    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 874,493,509
Entity Common Stock, Shares Outstanding   34,105,116  
Documents Incorporated by Reference Certain portions of the Registrant's Definitive Proxy Statement for the 2020 Annual Meeting of Stockholders or an amendment to this Annual Report on Form 10-K, to be filed with the Securities and Exchange Commission, are incorporated by reference into Part III of this Annual Report on Form 10-K.