| Jan 22, 2017 |
|
Undisclosed amount |
| Jul 27, 2015 |
|
Undisclosed amount |
| Mar 24, 2014 |
|
Undisclosed amount |
| Jan 17, 2014 |
|
Undisclosed amount |
| Jun 27, 2013 |
|
$ 600,000,000 |
| Jan 08, 2013 |
|
Undisclosed amount |
| Nov 26, 2012 |
|
Undisclosed amount |
| Jul 01, 2012 |
|
Undisclosed amount |
| May 06, 2012 |
|
Undisclosed amount |