INCOME TAXES - Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	11 Months Ended
	Jan. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2016	Dec. 31, 2015
Reductions of tax positions of prior years:
Possible decrease in unrecognized tax benefits in next 12 months		$ 500			$ 500
Successor
Reconciliation of the beginning and ending amount of unrecognized tax benefits
Balance, beginning of period				$ 137,593	13,138	$ 137,593
Additions for tax positions of the current year					1,218	2,213
Additions for tax positions of prior years					0	1,811
Reductions of tax positions of prior years:
Changes in judgment					0	(16,416)
Settlements during the period					(4,911)	(112,063)
Lapses of applicable statute of limitations					0	0
Balance, end of period	$ 137,593	$ 9,445			$ 9,445	13,138
Effective tax rate (as a percent)		33.50%	34.10%	33.20%	33.20%
Predecessor
Reconciliation of the beginning and ending amount of unrecognized tax benefits
Balance, beginning of period	193,244			$ 137,593		$ 137,593
Additions for tax positions of the current year	(5,010)
Additions for tax positions of prior years	7,724
Reductions of tax positions of prior years:
Changes in judgment	(58,365)
Settlements during the period	0
Lapses of applicable statute of limitations	0
Balance, end of period	$ 137,593
Effective tax rate (as a percent)	(27.70%)