| Date | Acquired | Amount |
|---|---|---|
| Jun 01, 2017 |
|
Undisclosed amount |
| May 26, 2017 |
|
$ 240,000,000 |
| Feb 27, 2017 |
|
Undisclosed amount |
| Oct 25, 2016 |
|
Undisclosed amount |
| May 04, 2016 |
|
Undisclosed amount |
| May 02, 2016 |
|
Undisclosed amount |
| Apr 18, 2016 |
|
Undisclosed amount |
| Aug 22, 2015 |
|
Undisclosed amount |
| Mar 27, 2015 |
|
Undisclosed amount |
| Nov 07, 2014 |
|
Undisclosed amount |
| Jul 01, 2013 |
|
$ 438,000,000 |
| Sep 04, 2012 |
|
Undisclosed amount |
| Dec 13, 2005 |
|
Undisclosed amount |
| Jun 24, 2004 |
|
Undisclosed amount |
