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Stockholders' Equity - Additional Detail (Details) - $ / shares shares in Millions | May 05, 2017 | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Series A Preferred Stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock shares outstanding (in shares) | 3.3 | 0.0 | 3.3
Preferred stock, dividend rate, percentage | 6.97% |  |
Redemption price of preferred stock (in dollars per share) | $ 50.00 |  |
Common Stock |  |  |
Class of Stock [Line Items] |  |  |
Common stock closing price (in dollars per share) |  | $ 11.50 |

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