| Dec 02, 2016 |
|
Undisclosed amount |
| Aug 10, 2015 |
|
Undisclosed amount |
| Aug 06, 2015 |
|
Undisclosed amount |
| Jun 01, 2015 |
|
Undisclosed amount |
| Mar 29, 2015 |
|
Undisclosed amount |
| Aug 28, 2014 |
|
Undisclosed amount |
| Feb 04, 2013 |
|
Undisclosed amount |
| Dec 01, 2011 |
|
Undisclosed amount |
| Nov 22, 2006 |
|
$ 875,000,000 |
| Apr 10, 2006 |
|
$ 185,000,000 |
| Aug 05, 1999 |
|
$ 250,000,000 |