| Jul 24, 2013 |
|
Undisclosed amount |
| Dec 21, 2012 |
|
Undisclosed amount |
| Nov 05, 2012 |
|
Undisclosed amount |
| Aug 09, 2012 |
|
Undisclosed amount |
| Jul 09, 2012 |
|
Undisclosed amount |
| Apr 02, 2012 |
|
Undisclosed amount |
| Jan 04, 2012 |
|
Undisclosed amount |
| Dec 07, 2011 |
|
Undisclosed amount |
| Nov 22, 2010 |
|
$ 790,000,000 |
| May 23, 2008 |
|
Undisclosed amount |
| Nov 01, 2007 |
|
Undisclosed amount |
| Jun 19, 2007 |
|
Undisclosed amount |
| Dec 14, 2004 |
|
Undisclosed amount |