Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2016
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