| Date | Acquired | Amount |
|---|---|---|
| Sep 13, 2016 |
|
$ 58,000,000 |
| Jul 16, 2013 |
|
Undisclosed amount |
| Mar 12, 2013 |
|
Undisclosed amount |
| Jun 07, 2011 |
|
Undisclosed amount |
| Jan 13, 2011 |
|
Undisclosed amount |
| Aug 03, 2009 |
|
Undisclosed amount |
