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Summary of Significant Accounting Policies (Details) (USD $) | 3 Months Ended | 9 Months Ended | 12 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 Minimum [Member] | Dec. 31, 2013 Minimum [Member] | Sep. 30, 2013 Maximum [Member] | Dec. 31, 2013 Maximum [Member]
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Vesting period of equity awards |  |  |  |  | 2 years |  | 4 years |
Useful life of patents and patent rights |  |  |  |  |  | 1 year |  | 8 years
Cash Paid For Foreign Income Taxes | $ 875,000 | $ 0 | $ 4,605,000 | $ 11,890,000 |  |  |  |
Effective tax rate |  |  | 52.00% | 25.00% |  |  |  |
Excess tax benefits from stock-based compensation |  |  | (358,000) | 7,554,000 |  |  |  |
Business acquisition deferred tax asset |  | 1,900,000 |  | 1,900,000 |  |  |  |
Income tax benefit from release of valuation allowance |  |  | $ 0 | $ 10,237,000 |  |  |  |

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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