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Business Acquisition Business Acquisition (Details) (USD $) | 9 Months Ended |  | 0 Months Ended |  | 0 Months Ended |  | 9 Months Ended
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Sep. 30, 2014 | Dec. 31, 2013 | Jul. 30, 2014 EndoDynamix, Inc. [Member] | Jul. 30, 2014 EndoDynamix, Inc. [Member] | Jul. 30, 2014 EndoDynamix, Inc. [Member] Milestone based payments | Oct. 17, 2014 EndoDynamix, Inc. [Member] Milestone based payments Subsequent Event [Member] | Jul. 30, 2014 EndoDynamix, Inc. [Member] Royalty Agreements [Member] | Jul. 30, 2014 EndoDynamix, Inc. [Member] In Process Research and Development [Member] | Sep. 30, 2014 Discounted Cash Flow Valuation Technique [Member] EndoDynamix, Inc. [Member] Royalty Agreements [Member] | Sep. 30, 2014 Discounted Cash Flow Valuation Technique [Member] Minimum [Member] EndoDynamix, Inc. [Member] Royalty Agreements [Member] | Sep. 30, 2014 Discounted Cash Flow Valuation Technique [Member] Maximum [Member] EndoDynamix, Inc. [Member] Royalty Agreements [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Purchase price |  |  | $ 1,300,000 |  |  |  |  |  |  |  |
Contingent consideration liability incurred |  |  |  | 13,900,000 | 10,300,000 |  | 3,600,000 |  |  |  |
Intangible assets acquired |  |  |  |  |  |  |  | 9,500,000 |  |  |
Weighted average amortization period (in years) | 27 years |  | 10 years |  |  |  |  |  |  |  |
Deferred income tax liabilities acquired |  |  |  | 1,800,000 |  |  |  |  |  |  |
Goodwill acquired | 256,217,000 | 248,428,000 |  | 7,800,000 |  |  |  |  |  |  |
Decrease in contingent liability |  |  |  |  |  | $ 3,700,000 |  |  |  |  |
Fair Value Inputs, Discount Rate |  |  |  |  |  |  |  |  |  | 2.00% | 26.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Percent, Low |  |  |  |  |  |  |  |  | 75.00% |  |
Fair Value Inputs, Probability of Payment |  |  |  |  |  |  |  |  | 100.00% |  |

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- Definition Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Percent, Low + References No definition available. + Details
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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