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v2.4.1.9

Reportable Segments and Geographic Information (Details 3) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Summary of geographic data |  |  |  |  |  |  |  |  |  |  |
Revenue from external customers | $ 793,628 us-gaap_SalesRevenueNet | $ 723,832 us-gaap_SalesRevenueNet | $ 739,270 us-gaap_SalesRevenueNet | $ 643,008 us-gaap_SalesRevenueNet | $ 739,018 us-gaap_SalesRevenueNet | $ 775,584 us-gaap_SalesRevenueNet | $ 835,906 us-gaap_SalesRevenueNet | $ 809,896 us-gaap_SalesRevenueNet | $ 2,899,738 us-gaap_SalesRevenueNet | $ 3,160,404 us-gaap_SalesRevenueNet | $ 2,794,246 us-gaap_SalesRevenueNet
Property, plant and equipment, net | 3,326,892 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 2,820,272 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 3,326,892 us-gaap_PropertyPlantAndEquipmentNet | 2,820,272 us-gaap_PropertyPlantAndEquipmentNet | 2,838,719 us-gaap_PropertyPlantAndEquipmentNet
U.S. |  |  |  |  |  |  |  |  |  |  |
Summary of geographic data |  |  |  |  |  |  |  |  |  |  |
Revenue from external customers |  |  |  |  |  |  |  |  | 1,778,808 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US | 1,911,425 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US | 1,810,713 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US
Property, plant and equipment, net | 2,471,674 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US |  |  |  | 1,945,991 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US |  |  |  | 2,471,674 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US | 1,945,991 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US | 1,879,268 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US
International |  |  |  |  |  |  |  |  |  |  |
Summary of geographic data |  |  |  |  |  |  |  |  |  |  |
Revenue from external customers |  |  |  |  |  |  |  |  | 1,120,930 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = exh_InternationalMember | 1,248,979 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = exh_InternationalMember | 983,533 us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = exh_InternationalMember
Property, plant and equipment, net | $ 855,218 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = exh_InternationalMember |  |  |  | $ 874,281 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = exh_InternationalMember |  |  |  | $ 855,218 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = exh_InternationalMember | $ 874,281 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = exh_InternationalMember | $ 959,451 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = exh_InternationalMember

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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 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 210.5-02.13) -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 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + 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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