| Date | Acquired | Amount |
|---|---|---|
| Aug 06, 2015 |
|
Undisclosed amount |
| May 19, 2003 |
|
Undisclosed amount |
| Jan 02, 2002 |
|
Undisclosed amount |
| Jul 30, 2001 |
|
$ 117,900,000 |
| Jun 17, 1999 |
|
$ 180,000,000 |
