| Date | Acquired | Amount |
|---|---|---|
| Mar 16, 2017 |
|
Undisclosed amount |
| Mar 16, 2017 |
|
Undisclosed amount |
| Jun 16, 2016 |
|
Undisclosed amount |
| Mar 01, 2016 |
|
Undisclosed amount |
| Oct 13, 2015 |
|
Undisclosed amount |
| Apr 11, 2012 |
|
$ 14,000,000 |
| May 16, 2008 |
|
$ 25,000,000 |
| Apr 24, 2008 |
|
Undisclosed amount |
| Oct 31, 2006 |
|
Undisclosed amount |
| Jul 25, 2006 |
|
Undisclosed amount |
| Jul 11, 2006 |
|
$ 25,000,000 |
