Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Long-Term Debt (Detail)

v3.10.0.1
Long-Term Debt - Long-Term Debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
6.75% Senior Secured Notes $ 255,277  
Long-term Debt 10,200 $ 9,000
Long-term debt and capital lease obligations less unamortized debt issuance costs 250,410 258,688
Less current portion (10,228) (9,109)
Long-term debt and capital lease obligations less unamortized debt issuance costs, net of current portion 240,182 249,579
Capital Lease Obligations and Other [Member]    
Debt Instrument [Line Items]    
6.75% Senior Secured Notes 77 462
Senior Secured Debt [Member]    
Debt Instrument [Line Items]    
6.75% Senior Secured Notes 245,000 255,000
Less unamortized debt issuance costs based on imputed interest rate of 7.08% (4,867) (5,774)
Long-term Debt $ 240,133 $ 249,226