Exhibit A
AGREEMENT REGARDING THE JOINT FILING OF
SCHEDULE 13G
_________________
The undersigned hereby agree as follows:
(i) Each of them is individually eligible to use the Schedule 13G to which this Exhibit is attached, and such Schedule 13G is filed on behalf of each of them; and
(ii) Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.
Dated: April 28, 2014
| | THOMAS H. LEE ADVISORS, LLC |
| | | | |
| | By | THL Holdco, LLC, its managing member |
| | | | |
| | By: | /s/ Charles P. Holden | |
| | Name: | Charles P. Holden | |
| | Title: | Managing Director | |
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| | | | |
| | THL EQUITY ADVISORS VI, LLC |
| | | | |
| | By: | Thomas H. Lee Partners, L.P., its sole member |
| | By: | Thomas H. Lee Advisors, LLC, its general partner |
| | By: | THL Holdco, LLC, its managing member |
| | | | |
| | By: | /s/ Charles P. Holden | |
| | Name: | Charles P. Holden | |
| | Title: | Managing Director | |
| | | | |
| | | | |
| | THOMAS H. LEE EQUITY FUND VI, L.P. |
| | | | |
| | By: | THL Equity Advisors VI, LLC, its general partner |
| | By: | Thomas H. Lee Partners, L.P., its sole member |
| | By: | Thomas H. Lee Advisors, LLC, its general partner |
| | By: | THL Holdco, LLC, its managing member |
| | | | |
| | By: | /s/ Charles P. Holden | |
| | Name: | Charles P. Holden | |
| | Title: | Managing Director | |
| | | | |
| | | | |
| | THOMAS H. LEE PARALLEL FUND VI, L.P. |
| | | | |
| | By: | THL Equity Advisors VI, LLC, its general partner |
| | By: | Thomas H. Lee Partners, L.P., its sole member |
| | By: | Thomas H. Lee Advisors, LLC, its general partner |
| | By: | THL Holdco, LLC, its managing member |
| | | | |
| | By: | /s/ Charles P. Holden | |
| | Name: | Charles P. Holden | |
| | Title: | Managing Director | |
| | | | |
| | | | |
| | | | |
| | THOMAS H. LEE PARALLEL (DT) FUND VI, L.P. |
| | | | |
| | By: | THL Equity Advisors VI, LLC, its general partner |
| | By: | Thomas H. Lee Partners, L.P., its sole member |
| | By: | Thomas H. Lee Advisors, LLC, its general partner |
| | By: | THL Holdco, LLC, its managing member |
| | | | |
| | By: | /s/ Charles P. Holden | |
| | Name: | Charles P. Holden | |
| | Title: | Managing Director | |
| | | | |
| | | | |
| | THL STERLING EQUITY INVESTORS L.P. |
| | | | |
| | By: | THL Equity Advisors VI, LLC, its general partner |
| | By: | Thomas H. Lee Partners, L.P., its sole member |
| | By: | Thomas H. Lee Advisors, LLC, its general partner |
| | By: | THL Holdco, LLC, its managing member |
| | | | |
| | By: | /s/ Charles P. Holden | |
| | Name: | Charles P. Holden | |
| | Title: | Managing Director | |
| | | | |
| | | | |
| | THL MANAGERS VI, LLC |
| | | | |
| | By: | Thomas H. Lee Partners, L.P., its managing member |
| | By: | Thomas H. Lee Advisors, LLC, its general partner |
| | By: | THL Holdco, LLC, its managing member |
| | | | |
| | By: | /s/ Charles P. Holden | |
| | Name: | Charles P. Holden | |
| | Title: | Managing Director | |
