| Date | Acquired | Amount |
|---|---|---|
| May 31, 2017 |
|
Undisclosed amount |
| Feb 01, 2017 |
|
$ 276,000,000 |
| Jan 10, 2006 |
|
Undisclosed amount |
| Nov 08, 2005 |
|
Undisclosed amount |
| Apr 08, 2004 |
|
Undisclosed amount |
| Sep 03, 2003 |
|
$ 22,700,000 |
| Aug 12, 2002 |
|
Undisclosed amount |
| Jul 18, 2001 |
|
Undisclosed amount |
