| Date | Acquired | Amount |
|---|---|---|
| May 11, 2017 |
|
$ 42,000,000 |
| Mar 11, 2016 |
|
Undisclosed amount |
| Oct 07, 2015 |
|
$ 30,500,000 |
| Aug 12, 2015 |
|
$ 20,000,000 |
