Document And Entity Information	6 Months Ended
	Jun. 30, 2013	Jul. 26, 2013
Document Information [Line Items]
Entity Registrant Name	STONERIDGE INC
Entity Central Index Key	0001043337
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Trading Symbol	SRI
Entity Common Stock, Shares Outstanding		28,487,015
Document Type	10-Q
Amendment Flag	true
Amendment Description	Stoneridge, Inc. is filing this Amendment No. 1 on Form 10-Q/A to amend the Quarterly Report on Form 10-Q for the quarter ended June 30, 2013, which was filed with the Securities and Exchange Commission on August 2, 2013 (the ''Original Form 10-Q Filing''), for the sole purpose of correcting a clerical error on the cover page of the number of Common Shares, without par value, outstanding as of July 26, 2013. The number of Common Shares outstanding on July 26, 2013 of 28,487,015 remained the same number of Common Shares outstanding as of June 30, 2013. There have been no other changes to the Original Form 10-Q Filing other than the change described above. This Form 10-Q/A should be read in conjunction with the Original Form 10-Q Filing, continues to speak as of the date of the Original Form 10-Q Filing, and does not modify or update disclosures in the Original Form 10-Q Filing except as noted above. Accordingly, this Form 10-Q/A does not reflect events occurring after the Original Form 10-Q Filing date.
Document Period End Date	Jun. 30, 2013
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2013