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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Unrealized gains (losses) on available-for-sale securities, tax	$ 0
Change in loss on derivative contract, tax	0
Change in supplemental executive retirement plan liability, tax	0
Change in Pension Plan minimum liability, tax	0
Change in Other Benefit Plan minimum liability, tax	$ 0
Predecessor
Unrealized gains (losses) on available-for-sale securities, tax		$ 61
Change in loss on derivative contract, tax		823
Change in supplemental executive retirement plan liability, tax		(927)
Change in Pension Plan minimum liability, tax		215
Change in Other Benefit Plan minimum liability, tax		$ (2,046)

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Amount of tax expense (benefit), after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580

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Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e640-108580

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-SubTopic 10
-Section 45
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-URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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