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Fair Value of Financial Instruments (Tables) | 12 Months Ended
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Sep. 30, 2019
Fair Value Disclosures [Abstract] |
Fair Value of Company's Short-term Investments, Contingent Consideration And Foreign Currency Forward Contracts | The following tables present the fair value of the Company’s short-term investments, contingent consideration and foreign currency forward contracts by valuation hierarchy and input (in thousands):
|  | AS OF SEPTEMBER 30, 2019 |
|  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable (Level 2) |  |  | Significant Unobservable (Level 3) |  |  | Totals |
Contingent consideration |  | $ | — |  |  | $ | — |  |  | $ | (9,940 | ) |  | $ | (9,940 | )
Foreign currency forward contract |  |  | — |  |  |  | (4 | ) |  |  | — |  |  |  | (4 | )
Total |  | $ | - |  |  | $ | (4 | ) |  | $ | (9,940 | ) |  | $ | (9,944 | )
|  | AS OF SEPTEMBER 30, 2018 |
|  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable (Level 2) |  |  | Significant Unobservable (Level 3) |  |  | Totals |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 17,791 |  |  | $ | — |  |  | $ | — |  |  | $ | 17,791 |
Government bonds |  |  | 7,680 |  |  |  | — |  |  |  | — |  |  |  | 7,680 |
Contingent consideration |  |  | — |  |  |  | — |  |  |  | (7,713 | ) |  |  | (7,713 | )
Foreign currency forward contract |  |  | — |  |  |  | (270 | ) |  |  | — |  |  |  | (270 | )
Total |  | $ | 25,471 |  |  | $ | (270 | ) |  | $ | (7,713 | ) |  | $ | 17,488 |
Changes in Fair Value of Company Level 3 Financial Instruments | The following table summarizes changes in the fair value of the Company’s Level 3 financial instruments for the fiscal year ended September 30, 2019:
Balance at October 1, 2018 |  | $ | 7,713 |
Contingent consideration pursuant to acquisitions |  |  | 4,342 |
Fair value adjustments |  |  | (2,115 | )
Balance at September 30, 2019 |  | $ | 9,940 |

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- Definition Fair value liabilities measured on nonrecurring basis unobservable input reconciliation. + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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