INCOME TAXES Reconciliation of Statutory Rate to Effective Rate (Details)	12 Months Ended
Dec. 31, 2017 Rate	Dec. 31, 2016 Rate	Dec. 31, 2015 Rate
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory tax rate	35.00%	35.00%	35.00%
State income tax, net	1.80%	2.60%	2.70%
Effect of state income tax rate changes	0.00%	0.60%	(0.30%)
Percentage depletion	0.00%	0.00%	0.30%
Non-deductible compensation	(0.30%)	(0.50%)	(1.20%)
Federal tax reform rate reduction	33.70%	0.00%	0.00%
Non-deductible goodwill impairment	(7.70%)	0.00%	0.00%
Other	(0.10%)	(0.30%)	(0.60%)
Effective Income Tax Rate Reconciliation, Percent	62.40%	37.40%	35.90%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 740
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-Subparagraph (SAB TOPIC 6.I)
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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deductions. Including, but not limited to, extraterritorial income exclusion deduction, qualified production activity deduction, dividend deduction, deduction for dividend paid to employee stock ownership plan, Medicare prescription drug benefit subsidy deduction, and other deductions.

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