| Date | Acquired | Amount |
|---|---|---|
| Nov 08, 2017 |
|
Undisclosed amount |
| Apr 05, 2016 |
|
Undisclosed amount |
| Sep 30, 2015 |
|
$ 65,000,000 |
| Aug 18, 2014 |
|
Undisclosed amount |
| May 14, 2013 |
|
Undisclosed amount |
| Oct 13, 2009 |
|
Undisclosed amount |
| Jan 29, 2009 |
|
Undisclosed amount |
| Nov 10, 2008 |
|
Undisclosed amount |
