XML 47 R71.htm IDEA: XBRL DOCUMENT v2.4.0.8
Property, Plant and Equipment - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Property Plant And Equipment Useful Life And Values [Abstract]      
Depreciation of property, plant and equipment $ 14,964 $ 13,406 $ 11,965