Capital Stock - Additional Information (Details) - $ / shares |
Sep. 30, 2017 |
Dec. 31, 2016 |
Jan. 29, 2016 |
|---|---|---|---|
| Capital Stock [Line Items] | |||
| Common stock, shares authorized | 19,900,000 | 19,900,000 | |
| Common stock, par value | $ 0.01 | $ 0.01 | $ 0.01 |
| Preferred stock, par value | $ 0.01 | ||
| Series A Participating Preferred Stock | |||
| Capital Stock [Line Items] | |||
| Preferred stock, shares authorized | 100,000 | 100,000 | |
| Preferred stock, par value | $ 0.01 | $ 0.01 | |
| Preferred stock, shares issued (in series) | 0 | 0 |