v2.4.0.8
Long-term Debt - Additional Information (Detail) (USD $)
Jun. 30, 2014
Dec. 31, 2013
Schedule Of Long Term Debt [Line Items]    
Carrying value, long term debt $ 27,421,000 $ 81,965,000
Fair value of long term debt including current maturities $ 82,000,000 $ 84,900,000