| Date | Acquired | Amount |
|---|---|---|
| Oct 04, 2016 |
|
$ 250,000,000 |
| Jul 11, 2016 |
|
Undisclosed amount |
| Feb 18, 2015 |
|
Undisclosed amount |
| Apr 11, 2014 |
|
Undisclosed amount |
| Feb 20, 2014 |
|
$ 29,000,000 |
