| Date | Acquired | Amount |
|---|---|---|
| Apr 20, 2017 |
|
Undisclosed amount |
| Oct 05, 2016 |
|
Undisclosed amount |
| Jul 06, 2016 |
|
Undisclosed amount |
| Jun 27, 2016 |
|
$ 156,000,000 |
| Apr 07, 2016 |
|
Undisclosed amount |
| Oct 07, 2015 |
|
$ 280,000,000 |
| Jun 01, 2015 |
|
Undisclosed amount |
| Aug 05, 2014 |
|
$ 1,800,000,000 |
| Dec 24, 2013 |
|
Undisclosed amount |
| Sep 06, 2012 |
|
Undisclosed amount |
| Aug 10, 2012 |
|
$ 92,000,000 |
| Nov 14, 2008 |
|
Undisclosed amount |
| May 12, 2006 |
|
Undisclosed amount |
| Oct 06, 2005 |
|
$ 100,000,000 |
| May 06, 2004 |
|
Undisclosed amount |
| Apr 30, 2004 |
|
$ 153,000,000 |
| Apr 06, 2004 |
|
Undisclosed amount |
