| Date | Acquired | Amount |
|---|---|---|
| Jan 05, 2015 |
|
Undisclosed amount |
| Apr 02, 2012 |
|
$ 115,000,000 |
| Feb 11, 2011 |
|
$ 7,000,000 |
| Jan 01, 2010 |
|
Undisclosed amount |
| Feb 06, 2008 |
|
Undisclosed amount |
