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Development, Commercialization and Supply Agreements (Tables) | 3 Months Ended
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Mar. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Changes in Balances of Contract Assets and Liabilities and Revenues Recognized | The following table presents changes in the balances of the Company’s contract assets and liabilities during the three months ended March 31, 2019:
In thousands |  | Balance at Beginning of Period |  |  | Additions |  |  | Deductions |  | Balance at End of Period
Three months ended March 31, 2019: |  |  |  |  |  |  |  |  |  |
Contract assets | $ | — |  | $ | — |  | $ | — | $ | —
Contract liabilities: |  |  |  |  |  |  |  |  |  |
Deferred revenue | $ | 20,710 |  | $ | — |  | $ | (547) | $ | 20,163
During the three months ended March 31, 2019, the Company recognized the following revenues as a result of changes in the contract asset and contract liability balances in the respective periods:
In thousands |  | Three Months Ended March 31,
Revenue recognized in the period from: |  | 2019
Amounts included in contract liability at the beginning of the period |  | $ | 547
Performance obligations satisfied in previous periods |  | $ | —

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
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