XML 178 R126.htm IDEA: XBRL DOCUMENT v2.4.0.8
Income Taxes - Summary of Reconciliation of Gross Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Beginning balance $ 31,052 $ 33,000 $ 21,142
Additions based on tax positions related to prior years 1,482 4,195 13,366
Settlements with taxing authorities (1,216) (5,038)  
Reductions due to expiration of statute of limitations (605) (1,105) (1,508)
Ending balance $ 30,713 $ 31,052 $ 33,000