| Date | Acquired | Amount |
|---|---|---|
| Aug 06, 2015 |
|
$ 47,000,000 |
| Sep 01, 2011 |
|
Undisclosed amount |
| Sep 11, 2009 |
|
$ 244,000,000 |
| Dec 13, 2007 |
|
$ 54,000,000 |
| Oct 23, 2006 |
|
$ 46,500,000 |
| Apr 24, 2006 |
|
Undisclosed amount |
