| Date | Acquired | Amount |
|---|---|---|
| Oct 02, 2017 |
|
Undisclosed amount |
| Jul 05, 2017 |
|
Undisclosed amount |
| Jan 31, 2017 |
|
Undisclosed amount |
| Jan 09, 2017 |
|
Undisclosed amount |
| Oct 06, 2016 |
|
Undisclosed amount |
| Oct 03, 2016 |
|
Undisclosed amount |
| Sep 06, 2016 |
|
Undisclosed amount |
| Feb 22, 2016 |
|
Undisclosed amount |
| Oct 01, 2014 |
|
$ 195,000,000 |
| Aug 10, 2014 |
|
$ 590,000,000 |
| Nov 14, 2011 |
|
Undisclosed amount |
| Oct 01, 2009 |
|
Undisclosed amount |
| Apr 17, 2007 |
|
$ 160,000,000 |
| Jun 08, 1995 |
|
Undisclosed amount |
