SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES - Revisions to Prior Period Consolidated Financial Statements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018		Sep. 30, 2018	[1]	Jun. 30, 2018	[1]	Mar. 31, 2018	[1]	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2016
Prior Period Adjustments [Line Items]
Deferred income taxes	$ 6,996				$ 6,106								$ 6,996	$ 6,106		$ 18,394
Total liabilities	548,547				520,721								548,547	520,721		578,661
Retained earnings	48,673				81,450								48,673	81,450		135,486
Total equity	436,670				457,100								436,670	457,100		477,174	$ 535,637
Benefit for income taxes													(436)	(31,063)		(53,078)
Loss from continuing operations	(7,234)	$ (7,057)	$ 6,102	$ (24,228)	3,985	[1]	$ (23,526)		$ (31,341)		$ (12,264)		(32,417)	(63,146)	[1]	(84,455)
Net loss	$ (7,234)	$ (7,057)	$ 6,102	$ (24,228)	$ 3,985	[1]	$ (23,526)		$ (31,341)		$ (12,264)		$ (32,417)	$ (63,146)	[1]	$ (84,455)
Basic earnings (loss) from continuing operations per share (in USD per share)	$ (0.24)	$ (0.23)	$ 0.20	$ (0.80)	$ 0.13	[1]	$ (0.78)		$ (1.04)		$ (0.41)		$ (1.07)	$ (2.10)	[1]	$ (2.83)
Net income (loss) per share: Basic (in USD per share)	(0.24)	(0.23)	0.20	(0.80)	0.13	[1]	(0.78)		(1.04)		(0.41)		(1.07)	(2.10)	[1]	(2.83)
Diluted earnings (loss) from continuing operations per share (in USD per share)	(0.24)	(0.23)	0.20	(0.80)	0.13	[1]	(0.78)		(1.04)		(0.41)		(1.07)	(2.10)	[1]	(2.83)
Net income (loss) per share: Diluted (in USD per share)	$ (0.24)	$ (0.23)	$ 0.20	$ (0.80)	$ 0.13	[1]	$ (0.78)		$ (1.04)		$ (0.41)		$ (1.07)	$ (2.10)	[1]	$ (2.83)
As previously reported
Prior Period Adjustments [Line Items]
Deferred income taxes																$ 38,100
Total liabilities																598,367
Retained earnings																115,780
Total equity																457,468
Benefit for income taxes																(33,372)
Loss from continuing operations																(104,161)
Net loss																$ (104,161)
Basic earnings (loss) from continuing operations per share (in USD per share)																$ (3.49)
Net income (loss) per share: Basic (in USD per share)																(3.49)
Diluted earnings (loss) from continuing operations per share (in USD per share)																(3.49)
Net income (loss) per share: Diluted (in USD per share)																$ (3.49)
Adjustments
Prior Period Adjustments [Line Items]
Deferred income taxes																$ (19,706)
Total liabilities																(19,706)
Retained earnings																19,706
Total equity																19,706
Benefit for income taxes																(19,706)
Loss from continuing operations																19,706
Net loss																$ 19,706
Basic earnings (loss) from continuing operations per share (in USD per share)																$ 0.66
Net income (loss) per share: Basic (in USD per share)																0.66
Diluted earnings (loss) from continuing operations per share (in USD per share)																0.66
Net income (loss) per share: Diluted (in USD per share)																$ 0.66

[1] Income (loss) from continuing operations, net income (loss) and the related earnings (loss) per share amounts for each of the quarters in 2018 are revised from those originally reported to correct errors in income tax expense (benefit) associated with the measurement of valuation allowances on deferred tax assets. Based on an analysis of quantitative and qualitative factors, the Company determined the related impacts were not material to its previously filed interim consolidated financial statements, and therefore, amendments of previously filed reports are not required.