| Date | Acquired | Amount |
|---|---|---|
| May 11, 2017 |
|
Undisclosed amount |
| Sep 27, 2016 |
|
Undisclosed amount |
| Dec 23, 2015 |
|
Undisclosed amount |
| Jun 08, 2015 |
|
Undisclosed amount |
| Nov 21, 2013 |
|
Undisclosed amount |
| Nov 01, 2013 |
|
Undisclosed amount |
| Jan 25, 2012 |
|
$ 128,000,000 |
| Jun 15, 2011 |
|
Undisclosed amount |
| May 30, 2011 |
|
Undisclosed amount |
| Dec 30, 2010 |
|
Undisclosed amount |
| Sep 02, 2010 |
|
Undisclosed amount |
| Jun 14, 2010 |
|
Undisclosed amount |
