| Date | Acquired | Amount |
|---|---|---|
| Nov 13, 2014 |
|
$ 100,000,000 |
| Oct 09, 2014 |
|
Undisclosed amount |
| Sep 01, 2012 |
|
Undisclosed amount |
| May 20, 2012 |
|
$ 5,500,000 |
