XML 26 R37.htm IDEA: XBRL DOCUMENT v2.4.0.8
Financial Instruments - Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level3) (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Investments Debt And Equity Securities [Abstract]  
Balance $ 7,374
Unrealized (gain) loss   
Balance $ 7,374