Annual report pursuant to section 13 and 15(d)

Share-based Compensation - Stock Based Compensation (Parenthetical) (Detail)

v2.4.0.8
Share-based Compensation - Stock Based Compensation (Parenthetical) (Detail) (USD $)
Share data in Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Share Based Compensation Expense [Line Items]  
Reversal for previously recognized tax gross up liability expenses $ 400,000
Share based compensation related to settlement agreement 1,000,000
Certain Restricted Shares [Member]
 
Share Based Compensation Expense [Line Items]  
Stock-based compensation $ 900
Share forfeited as a condition of settlement 2,000