XML 49 R38.htm IDEA: XBRL DOCUMENT v3.7.0.1
Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Long-term debt $ 411,511 $ 420,220
Unamortized discount and debt issuance costs (6,150) (7,615)
Less current portion of long-term debt, net 9,622 13,745
Long-term debt due after one year, net 401,889 406,475
4.75% Working Capital Revolver Loan [Member]    
Debt Instrument [Line Items]    
Long-term debt   0
Senior Secured Notes Due 2019 [Member]    
Debt Instrument [Line Items]    
Long-term debt 375,000 375,000
Secured Promissory Note Due 2017 [Member]    
Debt Instrument [Line Items]    
Long-term debt   6,566
5.73% Secured Promissory Note Due 2019 [Member]    
Debt Instrument [Line Items]    
Long-term debt 8,667 9,167
5.25% Secured Promissory Note Due 2021 [Member]    
Debt Instrument [Line Items]    
Long-term debt 12,786 14,272
5.31% Secured Promissory Note Due 2023 [Member]    
Debt Instrument [Line Items]    
Long-term debt 17,655 18,645
Other [Member]    
Debt Instrument [Line Items]    
Long-term debt $ 3,553 $ 4,185