| Date | Acquired | Amount |
|---|---|---|
| Apr 07, 2016 |
|
$ 22,000,000 |
| Apr 15, 2014 |
|
Undisclosed amount |
| Mar 13, 2013 |
|
Undisclosed amount |
| May 14, 2012 |
|
Undisclosed amount |
| Aug 15, 2011 |
|
Undisclosed amount |
