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Long-Term Obligations - Schedule of Long-term Debt (Parenthetical) (Detail)
6 Months Ended
Jun. 30, 2014
Note Payable Collaterized by Asset [Member]
 
Debt Instrument [Line Items]  
Debt instrument, interest rate terms Interest payable quarterly based on alternate base rate or LIBOR plus applicable margin (starting at 7.5% for alternate base rate and 8.5% for LIBOR) and increases by 25 basis points every quarter
Debt instrument, alternative base rate 7.50%
Debt instrument, LIBOR rate 8.50%
Debt instrument, variable rate 0.25%
Debt instrument, maturity year 2015
Note Payable Collaterized by Schuff's Real Estate [Member]
 
Debt Instrument [Line Items]  
Debt instrument, interest rate terms Interest payable monthly at LIBOR plus 4% and principal payable monthly
Debt instrument, variable rate 4.00%
Debt instrument, maturity year 2019
Note Payable Collaterized by Schuff's Asset under Revolving Line of Credit Agreement [Member]
 
Debt Instrument [Line Items]  
Debt instrument, interest rate terms Interest payable monthly at the LIBOR plus 3%
Debt instrument, variable rate 3.00%
Debt instrument, maturity year 2019