In your HTML snippet, it looks like you're missing the closing div tag for each modal - http://jsfiddle.net/5WvN7/
<button class="btn btn-primary" id="report" alt="report">Report Query Parameters</button>
<button class="btn btn-primary" id="reportData" alt="report">Report</button>
<div class="modal fade" id="modal-reportData" tabindex="-1" role="dialog" aria-labelledby="modal-title" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content report-modal-content">
<div class="modal-header">
<h4 class="modal-title" id="modal-title-report">Generated Report </h4>
</div>
<div class="modal-body ">
<div class="modal-footer"> </div>
</div>
</div>
</div>
</div>
<div class="modal fade" id="modal-reportParameters" tabindex="-1" role="dialog" aria-labelledby="modal-title" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content report-modal-content">
<div class="modal-header">
<h4 class="modal-title" id="modal-title-report">Report Query Parameters</h4>
</div>
<div class="modal-body node-inventory-modal-body">
<div class="row margin-bottom">
<form class="form-horizontal" role="form">
<div class="form-group">
<label for="colName" class="col-md-2 control-label"></label>
<div class="col-md-10"> </div>
</div>
</form>
</div>
<div class="modal-footer">
<button class="btn btn-primary" id="queryparameters">OK</button>
<button class="btn btn-default" data-dismiss="modal" id="cancel">Cancel</button>
</div>
</div>
</div>
</div>
</div>