| Date | Acquired | Amount |
|---|---|---|
| Feb 06, 2014 |
|
Undisclosed amount |
| Aug 02, 2011 |
|
Undisclosed amount |
| Apr 01, 2011 |
|
Undisclosed amount |
| Aug 04, 2010 |
|
Undisclosed amount |
| Jul 16, 2008 |
|
Undisclosed amount |
| Dec 04, 2006 |
|
Undisclosed amount |
| Aug 11, 2005 |
|
$ 132,000,000 |
| Jun 01, 2005 |
|
Undisclosed amount |
| Aug 08, 2004 |
|
Undisclosed amount |
| Jun 02, 2003 |
|
Undisclosed amount |
| Mar 11, 2002 |
|
$ 128,000,000 |
| Jul 03, 2001 |
|
$ 43,900,000 |
| Nov 22, 2000 |
|
Undisclosed amount |
