| Date | Acquired | Amount |
|---|---|---|
| Mar 03, 2016 |
|
Undisclosed amount |
| Jan 07, 2016 |
|
Undisclosed amount |
| Nov 30, 2015 |
|
Undisclosed amount |
| Apr 18, 2014 |
|
$ 10,000,000 |
| Feb 07, 2014 |
|
Undisclosed amount |
