Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Oct. 22, 2021
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 30, 2021
Entity File Number	001-13337
Entity Registrant Name	STONERIDGE INC
Entity Incorporation, State or Country Code	OH
Entity Tax Identification Number	34-1598949
Entity Address, Address Line One	39675 MacKenzie Drive, Suite 400
Entity Address, City or Town	Novi
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48377
City Area Code	248
Local Phone Number	489-9300
Title of 12(g) Security	Common Shares
Trading Symbol	SRI
Amendment Flag	false
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock Shares Outstanding		27,178,466
Entity Central Index Key	0001043337
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3