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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 true 4 Costs and expenses: 1 us-gaap_OperatingCostsAndExpensesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 5 Cost of sales and services 2 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 448602000 448602 false false false 2 false true false false 353845000 353845 false false false 3 false true false false 1324594000 1324594 false false false 4 false true false false 1235747000 1235747 false false false xbrli:monetaryItemType monetary The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 6 Selling, general and administrative expenses 2 us-gaap_SellingGeneralAndAdministrativeExpense us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 37142000 37142 false false false 2 false true false false 33964000 33964 false false false 3 false true false false 109479000 109479 false false false 4 false true false false 102377000 102377 false false false xbrli:monetaryItemType monetary The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. 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No authoritative reference available. true 10 Total Operating Expenses 2 us-gaap_OperatingExpenses us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 517957000 517957 false false false 2 false true false false 417563000 417563 false false false 3 false true false false 1527277000 1527277 false false false 4 false true false false 1519334000 1519334 false false false xbrli:monetaryItemType monetary Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. 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Such amount typically reflects adjustments similar to those made in preparing consolidated statements, including adjustments to eliminate intercompany gains and losses, and to amortize, if appropriate, any difference between cost and underlying equity in net assets of the investee at the date of investment. 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If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. 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