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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended	7 Months Ended	9 Months Ended
	Jul. 31, 2017	Sep. 30, 2017	Sep. 30, 2018	Jul. 31, 2017	Sep. 30, 2018
Unrealized gains (losses) on available-for-sale securities, tax		$ 0	$ 0		$ 0
Change in loss on derivative contract, tax		0	0		0
Change in supplemental executive retirement plan liability, tax		0	0		0
Change in Pension Plan minimum liability, tax		0	0		0
Change in Other Benefit Plan minimum liability, tax		$ 0	$ 0		$ 0
Predecessor
Unrealized gains (losses) on available-for-sale securities, tax	$ 0			$ 61
Change in loss on derivative contract, tax	823			823
Change in supplemental executive retirement plan liability, tax	0			(927)
Change in Pension Plan minimum liability, tax	0			215
Change in Other Benefit Plan minimum liability, tax	$ 0			$ (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).

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