Annual report pursuant to Section 13 and 15(d)

Share-Based Compensations - Share-Based Compensation Expense and Related Tax Benefits (Detail)

v2.4.0.8
Share-Based Compensations - Share-Based Compensation Expense and Related Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]      
Share-based compensation expense $ 705 $ 478 $ 608
Related tax benefits $ 32 $ 201 $ 256