| Date | Acquired | Amount |
|---|---|---|
| Sep 15, 2016 |
|
$ 25,000,000 |
| Aug 18, 2016 |
|
$ 120,000,000 |
| Oct 29, 2015 |
|
Undisclosed amount |
| Apr 15, 2014 |
|
$ 175,000,000 |
| Apr 02, 2014 |
|
$ 51,000,000 |
| Oct 03, 2012 |
|
$ 220,000,000 |
