Capital Stock - ATM Agreements (Details) - 2018 ATM Agreement $ in Millions	Dec. 18, 2018 USD ($)
Sale of stock
Maximum amount of shares to be issued	$ 30.0
Sales commission paid per transaction (in hundredths)	3.00%

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.

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