SC 13G: Statement of acquisition of beneficial ownership by individuals-Wellington Management Group LLP(6.66%),Wellington Group Holdings LLP(6.66%), etc.
4: Statement of changes in beneficial ownership of securities-Director Rosenberg Jay L.
3: Initial statement of beneficial ownership of securities-Director Rosenberg Jay L.
4: Statement of changes in beneficial ownership of securities-Director CAIRA JEFFREY
4: Statement of changes in beneficial ownership of securities-Director Schissel John A
4: Statement of changes in beneficial ownership of securities-Director Jones-Tyson Rodney
4: Statement of changes in beneficial ownership of securities-Director Hixon Ola Oyinsan
4: Statement of changes in beneficial ownership of securities-Director Green Emily Nagle
4: Statement of changes in beneficial ownership of securities-Director TWINEM MARY J
4: Statement of changes in beneficial ownership of securities-Director Green Emily Nagle
4: Statement of changes in beneficial ownership of securities-Director CAIRA JEFFREY
4: Statement of changes in beneficial ownership of securities-Director Hall Linda J.
4: Statement of changes in beneficial ownership of securities-Director Hixon Ola Oyinsan
4: Statement of changes in beneficial ownership of securities-Director TWINEM MARY J
4: Statement of changes in beneficial ownership of securities-Director Jones-Tyson Rodney
4: Statement of changes in beneficial ownership of securities-Director Schissel John A