| Date | Acquired | Amount |
|---|---|---|
| Nov 09, 2017 |
|
Undisclosed amount |
| May 17, 2017 |
|
$ 67,000,000 |
| Feb 21, 2017 |
|
$ 160,100,000 |
| May 04, 2016 |
|
$ 170,000,000 |
