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v2.4.1.9

Segment Reporting (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Net Sales: |  |  |
Total net sales | $ 660,579 us-gaap_Revenues | $ 659,486 us-gaap_Revenues | $ 612,466 us-gaap_Revenues
Long-term Assets: |  |  |
Total long-term assets | 153,240 us-gaap_AssetsNoncurrent | 218,720 us-gaap_AssetsNoncurrent |
North America [Member] |  |  |
Net Sales: |  |  |
Total net sales | 330,516 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember | 301,592 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember | 277,850 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember
Long-term Assets: |  |  |
Total long-term assets | 53,406 us-gaap_AssetsNoncurrent / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember | 49,853 us-gaap_AssetsNoncurrent / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember |
South America [Member] |  |  |
Net Sales: |  |  |
Total net sales | 139,780 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember | 178,532 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember | 180,410 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember
Long-term Assets: |  |  |
Total long-term assets | 85,433 us-gaap_AssetsNoncurrent / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember | 154,226 us-gaap_AssetsNoncurrent / us-gaap_StatementGeographicalAxis = us-gaap_SouthAmericaMember |
Europe and Other [Member] |  |  |
Net Sales: |  |  |
Total net sales | 190,283 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = sri_EuropeAndOtherMember | 179,362 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = sri_EuropeAndOtherMember | 154,206 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = sri_EuropeAndOtherMember
Long-term Assets: |  |  |
Total long-term assets | $ 14,401 us-gaap_AssetsNoncurrent / us-gaap_StatementGeographicalAxis = sri_EuropeAndOtherMember | $ 14,641 us-gaap_AssetsNoncurrent / us-gaap_StatementGeographicalAxis = sri_EuropeAndOtherMember |

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.10-17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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