Subsequent Events (Details) - USD ($) $ in Thousands, shares in Millions |
1 Months Ended | 12 Months Ended | ||
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Jan. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Subsequent Event [Line Items] | ||||
| Option to purchase additional shares of common stock | 10.0 | |||
| Proceeds from the issuance of common stock | $ 94,800 | |||
| Fees and commissions | $ 5,200 | $ 5,707 | $ 1,681 | |
| Over-allotment Option | ||||
| Subsequent Event [Line Items] | ||||
| Option to purchase additional shares of common stock | 1.5 | |||
| Over-allotment Option | Subsequent Event | ||||
| Subsequent Event [Line Items] | ||||
| Option to purchase additional shares of common stock | 1.5 | |||
| Proceeds from the issuance of common stock | $ 14,500 | |||
| Fees and commissions | $ 500 | |||
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Cash received on stock transaction after deduction of issuance costs. No definition available.
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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. No definition available.
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- Definition 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. No definition available.
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