XML 25 R48.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Industry Segments (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable operating segments |  |  | 2 |
Net sales | $ 270,126 | $ 268,875 | $ 500,834 | $ 480,586
Intersegment revenue | 0 | 0 | 0 | 0
Operating income | 27,220 | 22,690 | 43,250 | 32,393
Engine Management [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 182,050 | 172,644 | 357,559 | 335,659
Intersegment revenue | 7,566 | 4,358 | 13,019 | 8,846
Operating income | 24,704 | 17,630 | 45,488 | 31,318
Temperature Control [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 86,660 | 93,036 | 139,388 | 138,327
Intersegment revenue | 1,546 | 1,527 | 3,055 | 2,636
Operating income | 6,740 | 7,775 | 6,286 | 7,823
All Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 1,416 | 3,195 | 3,887 | 6,600
Intersegment revenue | (9,112) | (5,885) | (16,074) | (11,482)
Operating income | $ (4,224) | $ (2,715) | $ (8,524) | $ (6,748)

X
- Definition Amount of revenue from transactions with other operating segments of the same entity. + References No definition available. + Details
Name: | smp_IntersegmentRevenue
Namespace Prefix: | smp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration