Rights Plan (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2015
USD ($)
$ / shares
| |
| Class of Warrant or Right [Line Items] | |
| Percentage of acquisition threshold | 15.00% |
| Value of stock covered by each right | $ | $ 80 |
| Exercise price of rights | $ 40 |
| Threshold for change in control | 50.00% |
| Redemption price | $ 0.0001 |