INCOME TAXES - Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits (Details) - USD ($)	1 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended	11 Months Ended
	Jan. 31, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2016	Dec. 31, 2015
Reductions of tax positions of prior years:
Increase in unrecognized resulting from settlements with the IRS		$ 4,900,000
Possible decrease in unrecognized tax benefits in next 12 months		0			$ 0
Successor
Reconciliation of the beginning and ending amount of unrecognized tax benefits
Balance, beginning of period				$ 137,593,000	13,138,000	$ 137,593,000
Additions for tax positions of the current year					2,085,000	2,213,000
Additions for tax positions of prior years					1,031,000	1,811,000
Reductions of tax positions of prior years:
Changes in judgment					(687,000)	(16,416,000)
Settlements during the period					(5,747,000)	(112,063,000)
Lapses of applicable statute of limitations					0	0
Balance, end of period	$ 137,593,000	$ 9,820,000			$ 9,820,000	13,138,000
Effective tax rate (as a percent)		29.90%	30.80%	32.50%	32.30%
Predecessor
Reconciliation of the beginning and ending amount of unrecognized tax benefits
Balance, beginning of period	193,244,000			$ 137,593,000		$ 137,593,000
Additions for tax positions of the current year	(5,010,000)
Additions for tax positions of prior years	7,724,000
Reductions of tax positions of prior years:
Changes in judgment	(58,365,000)
Settlements during the period	0
Lapses of applicable statute of limitations	0
Balance, end of period	$ 137,593,000
Effective tax rate (as a percent)	(27.70%)