Quarterly report pursuant to Section 13 or 15(d)

Outstanding Restricted Shares Issued to Non-employee Directors (Detail)

v2.4.0.8
Outstanding Restricted Shares Issued to Non-employee Directors (Detail) (Restricted Stock)
6 Months Ended
Jun. 30, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Awards expected to vest by period 43,840
2014
 
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Awards expected to vest by period 19,445
2015
 
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Awards expected to vest by period 15,245
2016
 
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Awards expected to vest by period 9,150