Annual report pursuant to Section 13 and 15(d)

Long Term Debt (Parenthetical) (Detail)

v3.6.0.2
Long Term Debt (Parenthetical) (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Debt issue costs, accumulated amortization $ 19,364 $ 16,058