Stockholder Rights Plan - Additional Information (Details) |
9 Months Ended | ||
|---|---|---|---|
|
Jan. 29, 2016
right
$ / shares
$ / right
|
Sep. 30, 2017
$ / shares
|
Dec. 31, 2016
$ / shares
|
|
| Class Of Stock [Line Items] | |||
| Number of rights for each outstanding share | right | 1 | ||
| Common stock, par value | $ 0.01 | $ 0.01 | $ 0.01 |
| Right to purchase a share of preferred stock | Each right entitled the registered holder to purchase from the Company one one-thousandth of a share of preferred stock, par value $.01 per share. | ||
| Preferred stock, par value | $ 0.01 | ||
| Rights expiration date | Jan. 29, 2026 | ||
| Minimum percentage of common stock for tender offer | 9.80% | ||
| Exercise price of rights | $ 12 | ||
| Percentage of market price of common stock | 50.00% | ||
| Redemption price per right | $ / right | 0.01 | ||
| Series A Preferred Stock | |||
| Class Of Stock [Line Items] | |||
| Right to purchase a share of preferred stock | Each holder of a right, except the acquirer, would have been entitled, subject to the Company’s right to redeem or exchange the right, to exercise, at an exercise price of $12, the right to purchase one one-thousandth of a share of the Company’s newly created Series A Participating Preferred Stock | ||
| Preferred stock, par value | $ 0.01 | $ 0.01 |