The amount of derivative cap price per share.

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- Definition

Percentage of Premium over the last reported sale price of the Company?s common stock.

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The amount of stock issuance cost.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Nominal or face amount used to calculate payment on derivative.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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- Definition

Number of new stock issued during the period.

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Convertible Senior Notes - Capped Call and Common Stock Forward (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		9 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2019
Capped Call and Common Stock Forward
Share Price		$ 2.35
Common stock shares issued		10,000,000
Capped Call
Capped Call and Common Stock Forward
Capped call options amount	$ 16.0		$ 16.0
Cap price	$ 3.82		$ 3.82
Premium (as a percent)	100.00%
Share Price	$ 1.91		$ 1.91
Common Stock Forward
Capped Call and Common Stock Forward
Common stock shares issued			14,397,906
Net cost incurred			$ 27.5