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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings (loss) per share — Basic:
Earnings (loss) from continuing operations	$ 45,085	$ (91,538)	$ (137,749)	$ 29,804
Less: Distributed and undistributed earnings allocated to unvested stock	(198)	(114)	(379)	(336)
Earnings (loss) from continuing operations available to common shareholders — Basic	$ 44,887	$ (91,652)	$ (138,128)	$ 29,468
Weighted average common shares outstanding - Basic (in shares)	52,451	52,319	52,364	52,358
Earnings from continuing operations per common share - Basic (in dollars per share)	$ 0.86	$ (1.75)	$ (2.64)	$ 0.56
Earnings (loss) per share — Diluted:
Earnings (loss) from continuing operations	$ 45,085	$ (91,538)	$ (137,749)	$ 29,804
Less: Distributed and undistributed earnings allocated to unvested stock	(198)	(114)	(379)	(336)
Earnings (loss) from continuing operations available to common shareholders — Diluted	$ 44,887	$ (91,652)	$ (138,128)	$ 29,468
Weighted average common shares outstanding - Basic (in shares)	52,451	52,319	52,364	52,358
Effect of dilutive equity awards (in shares)	278	0	0	199
Weighted average common shares outstanding — Diluted (in shares)	52,729	52,319	52,364	52,557
Earnings (loss) from continuing operations per common share - Diluted (in dollars per share)	$ 0.85	$ (1.75)	$ (2.64)	$ 0.56
Anti-dilutive equity awards not included above (in shares)	2,574	3,170	3,544	1,945

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X

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1448-109256

+ Details

Name:	us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration