INCOME TAXES (Details 2) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 4 Months Ended 12 Months Ended 5 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Dec. 31, 2014
Dec. 31, 2013
Aug. 30, 2012
Reconciliation of effective tax rate on earnings (loss) from continuing operations before income taxes and the U.S. federal income tax statutory rate                        
Income tax expense at the federal statutory rate                 $ (13,470) $ 34,035 $ 34,902  
Effect of:                        
State income taxes                 (1,930) 195 1,479  
Increase in reserve for uncertain tax positions                   1,050 2,193  
Federal and state credits                   (2,985) (2,600)  
Change in net operating loss carryforward for excess tax deductions                     (28,206)  
Permanent items                 20 1,485 537  
Other items                   (1,100) (6,088)  
Valuation allowance                 18,880 790 (265,600)  
Income tax provision (benefit) 11,770 4,710 20,090 (3,100) (274,243) 3,430 4,330 3,100 3,500 33,470 (263,383)  
Effective income tax rate (as a percent)                 (9.10%) 34.40% (264.10%)  
Predecessor                        
Reconciliation of effective tax rate on earnings (loss) from continuing operations before income taxes and the U.S. federal income tax statutory rate                        
Income tax expense at the federal statutory rate                       20,125
Effect of:                        
State income taxes                       2,500
Permanent items                       100
Valuation allowance                       (20,225)
Income tax provision (benefit)                       $ 2,500
Effective income tax rate (as a percent)                       4.30%