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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 false 5 Royalties 2 us-gaap_RoyaltyRevenue us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 38050000 38050 false false false 2 false true false false 14689000 14689 false false false 3 false true false false 45827000 45827 false false false 4 false true false false 29414000 29414 false false false xbrli:monetaryItemType monetary Revenue earned during the period from the leasing or otherwise lending to a third party the entity's rights or title to certain property. Royalty revenue is derived from a percentage or stated amount of sales proceeds or revenue generated by the third party using the entity's property. Examples of property from which royalties may be derived include patents and oil and mineral rights. 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 6 Total revenues 2 us-gaap_SalesRevenueNet us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 370903000 370903 false false false 2 false true false false 444988000 444988 false false false 3 false true false false 751758000 751758 false false false 4 false true false false 874045000 874045 false false false xbrli:monetaryItemType monetary 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. 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 7 Operating costs and expenses: 1 us-gaap_CostsAndExpensesAbstract 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 8 Cost of revenues, exclusive of depreciation and amortization shown below 2 kg_CostOfRevenues kg false debit duration Cost of revenue. false false false false false false false false false false false totallabel false 1 false true false false 119027000 119027 false false false 2 false true false false 156093000 156093 false false false 3 false true false false 246081000 246081 false false false 4 false true false false 307032000 307032 false false false xbrli:monetaryItemType monetary Cost of revenue. No authoritative reference available. true 9 Selling, general and administrative 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 131829000 131829 false false false 2 false true false false 120631000 120631 false false false 3 false true false false 272304000 272304 false false false 4 false true false false 259165000 259165 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. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 4 -Paragraph 5A false 10 Acquisition related costs 2 us-gaap_BusinessCombinationAcquisitionRelatedCosts us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false true false false 2944000 2944 false false false 3 false false false false 0 0 false false false 4 false true false false 6733000 6733 false false false xbrli:monetaryItemType monetary This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. 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No authoritative reference available. true 12 Research and development 2 us-gaap_ResearchAndDevelopmentExpense 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 33174000 33174 false false false 2 false true false false 21202000 21202 false false false 3 false true false false 61498000 61498 false false false 4 false true false false 48458000 48458 false false false xbrli:monetaryItemType monetary The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. 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No authoritative reference available. false 14 Restructuring charges (Note 13) 2 us-gaap_RestructuringCharges 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 4852000 4852 false false false 2 false true false false 1475000 1475 false false false 3 false true false false 5114000 5114 false false false 4 false true false false 49525000 49525 false false false xbrli:monetaryItemType monetary Amount charged against earnings in the period for incurred and estimated costs, excluding asset retirement obligations, associated with exit from or disposal of business activities or restructurings pursuant to a program that is planned and controlled by management, and materially changes either the scope of a business undertaken by an entity, or the manner in which that business is conducted. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 false 15 Total operating costs and expenses 2 us-gaap_CostsAndExpenses 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 342785000 342785 false false false 2 false true false false 355207000 355207 false false false 3 false true false false 696175000 696175 false false false 4 false true false false 777124000 777124 false false false xbrli:monetaryItemType monetary Total costs of sales and operating expenses for the period. No authoritative reference available. true 16 Operating income 1 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 28118000 28118 false false false 2 false true false false 89781000 89781 false false false 3 false true false false 55583000 55583 false false false 4 false true false false 96921000 96921 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. true 17 Other income (expense): 1 us-gaap_NonoperatingIncomeExpenseAbstract 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 18 Interest income 2 us-gaap_InvestmentIncomeInterest us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 487000 487 false false false 2 false true false false 1506000 1506 false false false 3 false true false false 896000 896 false false false 4 false true false false 4294000 4294 false false false xbrli:monetaryItemType monetary Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. 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It is included in income from continuing operations before income taxes in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 47 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 37, 45 false 21 Gain (loss) on investments 2 us-gaap_GainLossOnInvestments us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 249000 249 false false false 2 false true false false -524000 -524 false false false 3 false true false false -623000 -623 false false false 4 false true false false -1347000 -1347 false false false xbrli:monetaryItemType monetary This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain or loss of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain or loss which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains or losses realized during the period from the sale of investments accounted for under the cost method of accounting and losses recognized for other than temporary impairments of the subject investments. 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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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