| Date | Acquired | Amount |
|---|---|---|
| Mar 03, 2017 |
|
Undisclosed amount |
| May 16, 2016 |
|
Undisclosed amount |
| Apr 02, 2016 |
|
Undisclosed amount |
| Jan 15, 2015 |
|
Undisclosed amount |
| Jan 03, 2013 |
|
Undisclosed amount |
| Nov 03, 2010 |
|
Undisclosed amount |
| Apr 15, 2010 |
|
Undisclosed amount |
| Dec 11, 2009 |
|
$ 230,000,000 |
| Feb 27, 2009 |
|
Undisclosed amount |
| Dec 02, 2004 |
|
Undisclosed amount |
| Dec 09, 2002 |
|
$ 658,800,000 |
