Quarterly report pursuant to Section 13 or 15(d)

Income Tax Benefit/Expense - Additional Information (Detail)

v2.4.1.9
Income Tax Benefit/Expense - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Income Tax Disclosure [Abstract]    
Income tax (benefit) $ (182)us-gaap_IncomeTaxExpenseBenefit $ (8,623)us-gaap_IncomeTaxExpenseBenefit