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Document and Entity Information - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Feb. 21, 2023
Jul. 01, 2022
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Trading Symbol NOVT    
Entity Registrant Name NOVANTA INC.    
Entity Central Index Key 0001076930    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Interactive Data Current Yes    
Current Fiscal Year End Date --12-31    
Entity Filer Category Large Accelerated Filer    
Entity Well-known Seasoned Issuer Yes    
Entity Public Float     $ 4,218,704,774
Entity Common Stock, Shares Outstanding   35,741,045  
Entity Shell Company false    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity File Number 001-35083    
Entity Incorporation, State or Country Code A3    
Entity Tax Identification Number 98-0110412    
Entity Address, Address Line One 125 Middlesex Turnpike    
Entity Address, City or Town Bedford    
Entity Address, State or Province MA    
Entity Address, Country US    
Entity Address, Postal Zip Code 01730    
City Area Code 781    
Local Phone Number 266-5700    
Document Annual Report true    
Document Transition Report false    
ICFR Auditor Attestation Flag true    
Auditor Name PricewaterhouseCoopers LLP    
Auditor Firm ID 238    
Auditor Location Boston, Massachusetts, United States    
Title of 12(b) Security Common shares, no par value    
Security Exchange Name NASDAQ    
Documents Incorporated by Reference

Portions of the Registrant’s Definitive Proxy Statement for the Registrant’s Annual Meeting of Shareholders scheduled to be held on May 10, 2023 to be filed with the Securities and Exchange Commission are incorporated by reference in answers to Part III of this Annual Report on Form 10-K.