| Date | Acquired | Amount |
|---|---|---|
| Oct 09, 2017 |
|
Undisclosed amount |
| Jul 17, 2017 |
|
Undisclosed amount |
| May 08, 2017 |
|
Undisclosed amount |
| Mar 31, 2017 |
|
$ 554,600,000 |
| Oct 06, 2016 |
|
Undisclosed amount |
| Jun 09, 2016 |
|
Undisclosed amount |
| Dec 18, 2015 |
|
$ 225,000,000 |
| Jul 01, 2015 |
|
Undisclosed amount |
| Apr 08, 2015 |
|
Undisclosed amount |
| Feb 18, 2015 |
|
Undisclosed amount |
| Oct 31, 2014 |
|
Undisclosed amount |
| Feb 07, 2003 |
|
$ 87,000,000 |
