| Date | Acquired | Amount |
|---|---|---|
| Jun 20, 2016 |
|
$ 55,000,000 |
| Nov 18, 2015 |
|
$ 215,000,000 |
| Oct 20, 2014 |
|
$ 22,000,000 |
| Jun 16, 2014 |
|
$ 50,000,000 |
