| Date | Acquired | Amount |
|---|---|---|
| Sep 06, 2017 |
|
Undisclosed amount |
| Apr 25, 2017 |
|
$ 30,000,000 |
| Oct 21, 2016 |
|
$ 85,000,000 |
| Apr 02, 2016 |
|
$ 200,000,000 |
| Jan 28, 2016 |
|
$ 11,000,000 |
| Oct 29, 2015 |
|
Undisclosed amount |
| Oct 19, 2015 |
|
Undisclosed amount |
