| Date | Acquired | Amount |
|---|---|---|
| Sep 15, 2015 |
|
$ 212,000,000 |
| Apr 01, 2015 |
|
Undisclosed amount |
| Mar 10, 2015 |
|
$ 20,000,000 |
| Nov 18, 2014 |
|
Undisclosed amount |
| Sep 27, 2012 |
|
Undisclosed amount |
| Jun 01, 2012 |
|
Undisclosed amount |
| Feb 01, 2011 |
|
$ 20,000,000 |
| Aug 17, 2010 |
|
$ 35,000,000 |
| Sep 17, 2009 |
|
Undisclosed amount |
