Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

No definition available.

Name:	dei_AmendmentFlag
Namespace Prefix:	dei_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Definition

PCAOB issued Audit Firm Identifier

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 10-K
-Number 249
-Section 310

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 20-F
-Number 249
-Section 220
-Subsection f

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 40-F
-Number 249
-Section 240
-Subsection f

Document and Entity Information - USD ($) $ in Thousands	12 Months Ended
Document and Entity Information - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Feb. 17, 2025	Jun. 28, 2024
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2024
Document Fiscal Year Focus	2024
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				$ 4,410,636,958
Entity Common Stock, Shares Outstanding			35,960,636
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
Document Financial Statement Error Correction [Flag]	false
Auditor Name	Deloitte & Touche LLP	PricewaterhouseCoopers LLP
Auditor Firm ID	34	238
Auditor Location	Boston, Massachusetts, United States	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 29, 2025 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.
Auditor Opinion [Text Block]	Opinions on the Financial Statements and Internal Control over Financial Reporting We have audited the accompanying consolidated balance sheet of Novanta Inc. and subsidiaries (the “Company”) as of December 31, 2024, the related consolidated statements of operations, comprehensive income, stockholders’ equity, and cash flows, for the year ended December 31, 2024, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024, and the results of its operations and its cash flows for the year ended December 31, 2024, in conformity with accounting principles generally accepted in the United States of America. We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 25, 2025 expressed an unqualified opinion on the Company’s internal control over financial reporting. Opinion on the Financial Statements We have audited the consolidated balance sheet of Novanta Inc. and its subsidiaries (the “Company”) as of December 31, 2023, and the related consolidated statements of operations, of comprehensive income, of stockholders’ equity and of cash flows for each of the two years in the period ended December 31, 2023, including the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2023, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2023 in conformity with accounting principles generally accepted in the United States of America.