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Note 10 - Variable Interest Entities (Details) - Summary Financial Information of Myers Included in the Condensed Consolidated Statement of Operations - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Condensed Income Statements, Captions [Line Items] |  |  |  |
Revenues | $ 177,425 | $ 194,806 | $ 295,107 | $ 329,343
Operating income | (162) | 2,535 | (16,840) | 2,977
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Revenues | 54,323 | 44,933 | 90,591 | 61,794
Operating income | 3,088 | 2,749 | 3,669 | 3,299
Net income attributable to Sterling common stockholders | $ 1,543 | $ 1,373 | $ 1,833 | $ 1,648

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- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1377-109256 + Details
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