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Redeemable convertible preferred stock | 9 Months Ended
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Jul. 01, 2017
Temporary Equity Disclosure [Abstract] |
Redeemable convertible preferred stock | Redeemable convertible preferred stock As of June 30, 2018 and September 30, 2017 redeemable convertible preferred stock consisted of the following:
(In thousands, except shares) |  |  |  |  |  |  |
As of June 30, 2018 and September 30, 2017
| Authorized Shares |  | Issued and Outstanding Shares |  | Carrying Value |  | Liquidation Preference
Series A Preferred Stock | 10,035,000 |  |  | 10,005,000 |  |  | $ | 15,060 |  |  | $ | 15,008 |
Series B Preferred Stock | 3,881,250 |  |  | 3,730,000 |  |  | 5,926 |  |  | 5,968 |
Series C Preferred Stock | 11,700,000 |  |  | 11,688,766 |  |  | 26,556 |  |  | 25,000 |
Series D Preferred Stock | 7,058,824 |  |  | 7,058,824 |  |  | 42,799 |  |  | 45,000 |
Total | 32,675,074 |  |  | 32,482,590 |  |  | $ | 90,341 |  |  | $ | 90,976 |
Upon the closing of the IPO, all shares of the Company's outstanding redeemable convertible preferred stock automatically converted on a one-for-one basis into an aggregate of 32,482,590 shares of common stock.

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- Definition The entire disclosure for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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- References No definition available. + Details
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