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Cash, Cash Equivalents and Marketable Securities Available for Sale (Tables) | 12 Months Ended
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Sep. 30, 2018
Cash and Cash Equivalents [Abstract] |
Summary of Cash, Cash Equivalents and Marketable Securities Available for Sale | The following is a summary of cash, cash equivalents and marketable securities at September 30, 2018 and 2017:
| September 30, 2018 |  | September 30, 2017
| Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
| (In thousands)
Cash and Cash Equivalents: |  |  |  |  |  |  |
Cash | $ | 71,610 |  |  | $ | 71,610 |  |  | $ | 90,323 |  |  | $ | 90,323 |
Money market funds | 13,813 |  |  | 13,813 |  |  | 6,471 |  |  | 6,471 |
Bank time deposits | 4,600 |  |  | 4,600 |  |  | 8,824 |  |  | 8,824 |
Total | $ | 90,023 |  |  | $ | 90,023 |  |  | $ | 105,618 |  |  | $ | 105,618 |
Long-term Marketable Securities: |  |  |  |  |  |  |
Marketable securities | $ | 14,313 |  |  | $ | 18,059 |  |  | $ | 10,788 |  |  | $ | 13,791 |

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References No definition available. + Details
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- References No definition available. + Details
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