Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT - Company Borrowings (Details)

v3.3.1.900
LONG-TERM DEBT - Company Borrowings (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Dec. 07, 2012
Debt Instrument [Line Items]      
Principal balance on borrowings $ 274,305,000 $ 312,426,000  
Portion due with one year (3,278,000) (27,426,000)  
Unamortized discount (4,589,000) (2,882,000)  
Long-term debt 266,438,000 282,118,000  
7.750% Senior Notes (excluding unamortized discount)      
Debt Instrument [Line Items]      
7.750% Senior Notes (excluding unamortized discount) 149,828,000 200,000,000  
Senior secured revolving credit facility      
Debt Instrument [Line Items]      
Principal balance on borrowings 90,000,000 85,000,000  
Promissory notes      
Debt Instrument [Line Items]      
Principal balance on borrowings 24,968,000 27,426,000  
Other (excluding unamortized discount)      
Debt Instrument [Line Items]      
Principal balance on borrowings $ 9,509,000 $ 0  
Senior Unsecured Notes Due December 15, 2022 | 7.750% Senior Notes (excluding unamortized discount)      
Debt Instrument [Line Items]      
Stated interest rate 7.75% 7.75% 7.75%
Principal balance on borrowings     $ 200,000,000.0