XML 29 R31.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stock-Based Compensation Expense Recognized in Condensed Consolidated Statements of Operations (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation $ 10,937 $ 5,189