Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail)

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Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail)
$ in Thousands
3 Months Ended
Dec. 31, 2015
USD ($)
May 2011 Through October 2014  
Debt Instrument [Line Items]  
Long-term debt, quarterly payments $ 53
January 2015 through October 2016  
Debt Instrument [Line Items]  
Long-term debt, quarterly payments $ 81