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Acquisitions (Narrative) (Details) (USD $) | 3 Months Ended | 0 Months Ended | 3 Months Ended |  | 0 Months Ended | 3 Months Ended |  | 0 Months Ended | 3 Months Ended | 0 Months Ended
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Mar. 31, 2012 | Jan. 30, 2012 Ostial [Member] Y | Mar. 31, 2012 Ostial [Member] | Jan. 05, 2012 Scion [Member] | Sep. 02, 2011 Ash [Member] Y | Mar. 31, 2012 Distribution Rights [Member] Scion [Member] Y | Jan. 05, 2012 Distribution Rights [Member] Scion [Member] | Jan. 30, 2012 Customer Lists [Member] Ostial [Member] Y | Mar. 31, 2012 Customer Lists [Member] Scion [Member] Y | Sep. 02, 2011 Customer Lists [Member] Ash [Member] Y | Jan. 30, 2012 Noncompete Agreements [Member] Ostial [Member] Y | Jan. 30, 2012 Developed Technology Rights [Member] Ostial [Member] Y | Sep. 02, 2011 Developed Technology Rights [Member] Ash [Member] Y | Jan. 30, 2012 Trademarks [Member] Ostial [Member] Y
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Cost of Acquired Entity, Purchase Price |  |  |  | $ 2,500,000 |  |  |  |  |  |  |  |  |  |
Business Acquisition, Cost of Acquired Entity, Cash Paid |  | 10,000,000 |  | 1,500,000 | 5,000,000 |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration, Potential Cash Payment |  | 6,500,000 |  | 1,000,000 | 1,000,000 |  |  |  |  |  |  |  |  |
Maximum Additional Amount Possibly Due Based On Future Related Product Sales |  |  | 13,500,000 |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Purchase Price Allocation, Liabilities Assumed |  | 5,000,000 |  |  | 1,300,000 |  |  |  |  |  |  |  |  |
Business Acquisition, Purchase Price Allocation, Assets Acquired |  | 21,500,000 |  |  | 6,270,000 |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Useful Life |  |  |  |  |  | 6 |  | 8 | 5 | 2 | 5 | 15 | 15 | 15
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life |  | 14.7 |  |  | 9 |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Asset, Amount |  |  |  |  |  |  | 2,500,000 | 700,000 | 95,000 | 300,000 | 20,000 | 16,200,000 | 3,200,000 |
Number of Patents | 3 |  |  |  |  |  |  |  |  |  |  |  |  |
Research and Development Asset Acquired Other than Through Business Combination, Written-off | $ 175,000 |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 44 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275 + Details
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- Definition Amount of cash paid to acquire the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph f(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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