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Summary of Significant Accounting Policies (Details Textuals) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Summary of Significant Accounting Policies (Textuals) [Abstract] |  |  |  |
Amortization expense | $ 1.5 | $ 1.9 | $ 4.4 | $ 5.6
Future Amortization Expense Current Year |  |  | 5.9 |
Aggregate amortization expense for 2014 | 5.9 |  | 5.9 |
Aggregate amortization expense for 2015 | 5.2 |  | 5.2 |
Aggregate amortization expense for 2016 | 5.0 |  | 5.0 |
Aggregate amortization expense for 2017 | 4.8 |  | 4.8 |
Aggregate amortization expense for 2018 | 4.5 |  | 4.5 |
Purchased Intangible Amortization, Gross | 1.3 | 1.8 | 4.0 | 5.2
Purchased intangible amortization, net of tax | 0.9 | 1.2 | 2.7 | 3.4
Amortization expense associated with capitalized software | 5.2 | 3.3 | 13.1 | 10.0
Standard Warranty Period |  |  | one |
Share - based compensation expense | $ 3.1 | $ 3.3 | $ 9.0 | $ 9.2

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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