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Equity - Treasury Stock Activity (Details) - Treasury Stock - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2016	Oct. 01, 2016	Dec. 31, 2017	Dec. 31, 2015	Dec. 31, 2014
Successor
Equity, Class of Treasury Stock [Line Items]
Number of shares withheld for taxes	5		349
Value of shares withheld for taxes	$ 110		$ 6,730
Number of shares retired	5		349
Value of shares retired	$ 110		$ 6,730
Predecessor
Equity, Class of Treasury Stock [Line Items]
Number of shares withheld for taxes		1,122		1,872	1,034
Value of shares withheld for taxes		$ 44		$ 2,428	$ 6,373
Number of shares retired		1,122		1,872	1,034
Value of shares retired		$ 44		$ 2,428	$ 6,373

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Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the cost method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
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Number of shares that have been repurchased during the period and are being held in treasury.

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Number of shares of common and preferred stock retired from treasury during the period.

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