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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 2 -Article 5 false 10 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 319054000 319054 false false false 2 false true false false 304055000 304055 false false false 3 false true false false 957759000 957759 false false false 4 false true false false 999986000 999986 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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