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Revenue Recognition (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Revenue Recognition [Abstract] |  |
Payments to representatives | $ 14.0 us-gaap_SalesCommissionsAndFees | $ 11.9 us-gaap_SalesCommissionsAndFees
Extended product warranties, minimum length | 6 months |
Extended product warranties, maximum length | 10 years |

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- Definition Extended Product Warranties, Maximum Length + References No definition available. + Details
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- Definition Extended Product Warranties, Minimum Length + References No definition available. + Details
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- Details
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- Definition Primarily represents commissions incurred in the period based upon the sale by commissioned employees or third parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by third parties (such as a distributor or value added reseller). + 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 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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