Unlike all other desktop browsers, in IE9 and IE10 the drawers on the Financial Reports & SEC Filings page cannot be opened or closed by clicking either the down arrow or the area between the arrow and the drawer title text ("ALL DOCUMENTS" or "ALL YEARS"). In IE9 and IE10, you have to click exactly on the drawer title text "ALL DOCUMENTS" or "ALL YEARS" to open the drawer. (Once open, however, you can click anywhere on the arrow / drawer title / space between to close the drawer.)
(GIF below from IE10, but identical experience in IE9.)
Unlike all other desktop browsers, in IE9 and IE10 the drawers on the Financial Reports & SEC Filings page cannot be opened or closed by clicking either the down arrow or the area between the arrow and the drawer title text ("ALL DOCUMENTS" or "ALL YEARS"). In IE9 and IE10, you have to click exactly on the drawer title text "ALL DOCUMENTS" or "ALL YEARS" to open the drawer. (Once open, however, you can click anywhere on the arrow / drawer title / space between to close the drawer.)
(GIF below from IE10, but identical experience in IE9.)