| Date | Acquired | Amount |
|---|---|---|
| Jan 24, 2017 |
|
$ 2,280,000,000 |
| Dec 10, 2015 |
|
$ 105,000,000 |
| Oct 01, 2015 |
|
Undisclosed amount |
| Jul 01, 2015 |
|
Undisclosed amount |
| Aug 21, 2014 |
|
$ 69,900,000 |
| Mar 03, 2014 |
|
$ 343,000,000 |
| Jan 06, 2014 |
|
$ 59,600,000 |
| Jan 23, 2011 |
|
Undisclosed amount |
| Mar 05, 2008 |
|
Undisclosed amount |
