| Date | Acquired | Amount |
|---|---|---|
| Jul 01, 2015 |
|
Undisclosed amount |
| Feb 04, 2015 |
|
$ 475,000,000 |
| Feb 04, 2015 |
|
$ 85,000,000 |
| Nov 14, 2013 |
|
$ 150,000,000 |
