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Fair Value Measurements Fair value hierarchy the Company’s financial assets and liabilities (Details) (USD $) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2014 | May 08, 2014 | Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Acquisition-related contingent consideration | $ 22,430,000 | $ 11,900,000 | $ 9,450,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  | 90,000,000 |
Business Combination, Consideration Transferred, Liabilities Incurred | 11,890,000 |  |
Available-for-sale Securities | 665,100 |  | 0
Marketable securities | 665,112 |  | 0
Warrant Derivative Liabilities | 0 |  | 23,200
Accrued Liabilities and Other Liabilities | 22,430,000 |  | 9,473,200
Business Combination, Liabilities Arising from Contingencies, Amount Recognized | 12,400,000 |  |
Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-sale Securities | 0 |  | 0
Marketable securities | 0 |  | 0
Warrant Derivative Liabilities | 0 |  | 0
Contingent Consideration Classified as Equity, Fair Value Disclosure | 0 |  | 0
Accrued Liabilities and Other Liabilities | 0 |  | 0
Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-sale Securities | 665,100 |  | 0
Marketable securities | 665,100 |  | 0
Warrant Derivative Liabilities | 0 |  | 0
Contingent Consideration Classified as Equity, Fair Value Disclosure | 0 |  | 0
Accrued Liabilities and Other Liabilities | 0 |  | 0
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-sale Securities | 0 |  | 0
Marketable securities | 0 |  | 0
Warrant Derivative Liabilities | 0 |  | 23,200
Contingent Consideration Classified as Equity, Fair Value Disclosure | 22,430,000 |  | 9,450,000
Accrued Liabilities and Other Liabilities | 22,430,000 |  | 9,473,200
Assets, Total [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Marketable securities | 665,100 |  | 0
Contingent Consideration Classified as Equity [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Acquisition-related contingent consideration | 22,430,000 |  | 9,450,000
Business Combination, Consideration Transferred, Liabilities Incurred | 11,890,000 |  |
Amorcyte, LLC [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Acquisition-related contingent consideration | 10,100,000 |  | 9,500,000
Warrants |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Warrant Derivative Liabilities | 0 |  | 23,200
Contingent Consideration Classified as Equity [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent Consideration Classified as Equity, Fair Value Disclosure | $ 22,430,000 |  | $ 9,450,000

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