Condensed Consolidating Balance Sheet (Footnotes) (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Verso Paper Finance Holdings LLC    
Condensed Financial Statements, Captions [Line Items]    
Long-term note receivable $ 23,305 $ 23,305
Verso Paper Holdings Limited Liability Company [Member]    
Condensed Financial Statements, Captions [Line Items]    
Long-term note receivable 23,305 23,305
Guarantor Subsidiaries | Verso Paper Holdings Limited Liability Company [Member]    
Condensed Financial Statements, Captions [Line Items]    
Long-term note receivable $ 23,305 $ 23,300