| Date | Acquired | Amount |
|---|---|---|
| Sep 30, 2015 |
|
$ 732,000,000 |
| May 05, 2015 |
|
Undisclosed amount |
| Aug 05, 2014 |
|
Undisclosed amount |
| Aug 03, 2011 |
|
Undisclosed amount |
| Sep 01, 2010 |
|
Undisclosed amount |
| Jul 01, 2010 |
|
Undisclosed amount |
| Feb 10, 2010 |
|
Undisclosed amount |
| Oct 29, 2009 |
|
Undisclosed amount |
| May 28, 2008 |
|
Undisclosed amount |
| Aug 08, 2004 |
|
Undisclosed amount |
