Common Stock (Sales Agreement Narrative) (Detail) - Sale Agreement (ATM) $ in Millions	Feb. 29, 2020 USD ($)
Class of Stock [Line Items]
Maximum aggregate offering price of equity securities	$ 50.0
Percentage of commission	4.00%
Sales Agreement Agent [Member]
Class of Stock [Line Items]
Percentage of commission	2.00%

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.

No definition available.

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