| Date | Acquired | Amount |
|---|---|---|
| Jul 17, 2017 |
|
$ 38,500,000 |
| Mar 31, 2015 |
|
$ 122,000,000 |
| Nov 17, 2014 |
|
Undisclosed amount |
| Nov 17, 2014 |
|
Undisclosed amount |
| May 23, 2012 |
|
Undisclosed amount |
| Nov 01, 2010 |
|
Undisclosed amount |
| May 25, 2010 |
|
Undisclosed amount |
| Sep 15, 2009 |
|
Undisclosed amount |
