The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Number of shares issued for each share of convertible preferred stock that is converted.

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Face (par) amount of debt instrument at time of issuance.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent events (Details) - Subsequent Event	Aug. 06, 2018 shares	Jul. 19, 2018	Jul. 31, 2018 USD ($)
Subsequent Event [Line Items]
Common shares issued in conversion of outstanding shares of redeemable convertible preferred stock (shares)	32,482,590
Number of shares of common stock issued for each share of redeemable convertible preferred stock (shares)	1
Stock split, conversion ratio		2
J.P. Morgan Chase Bank, N.A. \| Term Loan under Credit Facility
Subsequent Event [Line Items]
Debt \| $			$ 40,000,000