| Oct 12, 2017 |
|
Undisclosed amount |
| Dec 22, 2015 |
|
Undisclosed amount |
| Jul 30, 2014 |
|
Undisclosed amount |
| Oct 02, 2012 |
|
Undisclosed amount |
| Oct 01, 2011 |
|
Undisclosed amount |
| Jun 30, 2011 |
|
CA$ 625,000,000 |
| Apr 22, 2008 |
|
Undisclosed amount |
| Oct 07, 2004 |
|
Undisclosed amount |
| Jun 21, 2001 |
|
Undisclosed amount |