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Business segments - Segment Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | ---
Segment Reporting [Abstract] |  |  |
Primary | $ 1,706,032 | $ 1,987,727 | $ 1,770,749
Corporate, unallocated | 46,436 | 37,331 | 39,447
TOTAL | $ 1,752,468 | $ 2,025,058 | $ 1,810,196

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- Definition The remaining assets are unallocated corporate assets. Not including: Segment assets include cash and cash equivalents, accounts receivable, due from affiliates, prepaid and other current assets, inventory, intangible assets and property, plant and equipment-net. + References No definition available. + Details
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- Definition Segment assets include cash and cash equivalents, accounts receivable, due from affiliates, prepaid and other current assets, inventory, intangible assets and property, plant and equipment-net; the remaining assets are unallocated corporate assets. + References No definition available. + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 + Details
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- References No definition available. + Details
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