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Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions | Jul. 26, 2018 | Mar. 15, 2017 | Sep. 30, 2019
--- | --- | --- | ---
Loss Contingencies [Line Items] |  |  |
Amount awarded to other party in settlement | $ 1.0 |  |
Issuance of common shares in litigation settlement (in shares) | 500,000 |  |
Additional amount to be awarded to other party in settlement, within 12 months | $ 1.0 |  |
Additional amount to be awarded to other party in settlement, within 24 months | $ 1.0 |  |
Acquisition-related liabilities, current |  |  | $ 1.0
Former Stockholders |  |  |
Loss Contingencies [Line Items] |  |  |
Stock issued for acquisition (shares) |  | 973,333 |

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