| Mar 31, 2017 |
|
Undisclosed amount |
| Sep 08, 2014 |
|
$ 1,800,000,000 |
| Jul 24, 2013 |
|
$ 345,000,000 |
| Aug 01, 2012 |
|
Undisclosed amount |
| Jun 13, 2012 |
|
Undisclosed amount |
| Oct 26, 2011 |
|
Undisclosed amount |
| Jul 28, 2011 |
|
Undisclosed amount |
| Jul 27, 2011 |
|
Undisclosed amount |
| Feb 23, 2009 |
|
Undisclosed amount |
| Jul 28, 2008 |
|
Undisclosed amount |
| May 20, 2008 |
|
Undisclosed amount |
| Jul 01, 1999 |
|
$ 50,000,000 |