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Acquisition (Tables) | 6 Months Ended
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Jun. 30, 2012
Business Combinations [Abstract] |
Schedule Of Business Combination Consideration Transferred [Table Text Block] | The acquisition date fair value of the total consideration transferred consisted of the following:
Cash |  | $ | 29,669 |
Common Shares (1,940,413 shares) |  |  | 15,310 |
Fair value of consideration transferred |  |  | 44,979 |
Fair value of the Company''s previously held equity interest |  |  | 104,118 |
Fair value of noncontrolling interest |  |  | 48,727 |
Total fair value of PST |  | $ | 197,824
Schedule of Purchase Price Allocation [Table Text Block] | The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date. These values represent a revision to the initial allocation of the purchase price subject to finalization of post-closing procedures. The purchase price allocation is preliminary pending completion of the valuation of acquired intangible assets, inventory, property, plant and equipment, deferred income taxes and an assessment of contingencies. As of December 31, 2011 (controlling interest acquired date)
|  |  |  |  | Interim |
|  | Initially Reported |  |  | Revisions |
Cash |  | $ | 2,137 |  |  | $ | 2,137 |
Accounts receivable |  |  | 48,993 |  |  |  | 48,993 |
Inventory |  |  | 56,204 |  |  |  | 56,204 |
Prepaids and other current assets |  |  | 9,547 |  |  |  | 9,257 |
Property, plant and equipment |  |  | 42,389 |  |  |  | 42,482 |
Identifiable intangible assets |  |  | 102,090 |  |  |  | 102,090 |
Other long-term assets |  |  | 1,479 |  |  |  | 1,479 |
Total identifiable assets acquired |  |  | 262,839 |  |  |  | 262,642 |
Accounts payable |  |  | 9,825 |  |  |  | 9,825 |
Other current liabilities |  |  | 25,801 |  |  |  | 25,917 |
Debt |  |  | 54,068 |  |  |  | 54,068 |
Deferred tax liabilities |  |  | 39,392 |  |  |  | 39,603 |
Total liabilities assumed |  |  | 129,086 |  |  |  | 129,413 |
Net identifiable assets acquired |  |  | 133,753 |  |  |  | 133,229 |
Goodwill |  |  | 64,071 |  |  |  | 64,595 |
Net assets acquired |  | $ | 197,824 |  |  | $ | 197,824 |
Business Acquisition, Pro Forma Information [Table Text Block] | The following unaudited pro forma information reflects the Company’s consolidated results of operations as if the acquisition had taken place on January 1, 2011. The unaudited pro forma information is not necessarily indicative of the results of operations that the Company would have reported had the transaction actually occurred at the beginning of these periods, nor is it necessarily indicative of future results.
|  | Three months ended |  |  | Six months ended |
|  | June 30, 2011 |  |  | June 30, 2011 |
Net sales |  | $ | 253,113 |  |  | $ | 499,395 |
Net income attributable to Stoneridge, Inc. and subsidiaries |  | $ | 3,029 |  |  | $ | 5,516

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 54 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 55 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph r(2, 3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of all of the fair values of the purchase price and assets and liabilities acquired in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479 + Details
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