| Date | Acquired | Amount |
|---|---|---|
| Mar 06, 2017 |
|
Undisclosed amount |
| Aug 31, 2016 |
|
Undisclosed amount |
| Oct 05, 2015 |
|
Undisclosed amount |
| Aug 12, 2015 |
|
Undisclosed amount |
| Oct 01, 2013 |
|
$ 372,000,000 |
| Aug 27, 2012 |
|
$ 335,000,000 |
| Feb 19, 2008 |
|
Undisclosed amount |
| Feb 27, 2007 |
|
Undisclosed amount |
| Nov 27, 2006 |
|
Undisclosed amount |
| Jul 31, 2006 |
|
$ 41,000,000 |
| May 17, 2006 |
|
$ 137,300,000 |
| Aug 25, 2005 |
|
$ 13,700,000 |
| Aug 09, 2005 |
|
$ 13,400,000 |
| Feb 06, 2003 |
|
Undisclosed amount |
| Jan 01, 2003 |
|
Undisclosed amount |
| Feb 21, 2002 |
|
$ 20,000,000 |
| Nov 05, 2001 |
|
Undisclosed amount |
| Jan 11, 2001 |
|
Undisclosed amount |
| Aug 04, 2000 |
|
Undisclosed amount |
| Aug 01, 1999 |
|
Undisclosed amount |
