| Date | Acquired | Amount |
|---|---|---|
| May 13, 2015 |
|
Undisclosed amount |
| May 05, 2015 |
|
Undisclosed amount |
| Sep 04, 2014 |
|
$ 15,000,000 |
| Mar 08, 2009 |
|
Undisclosed amount |
| Dec 02, 2008 |
|
Undisclosed amount |
