Condensed Consolidated Statements Of Cash Flows - USD ($)	1 Months Ended	2 Months Ended	3 Months Ended	4 Months Ended	6 Months Ended
Apr. 30, 2021	Jun. 30, 2021	Jun. 30, 2022	Apr. 30, 2021	Jun. 30, 2022
OPERATING ACTIVITIES
Net income (loss)	$ (3,556,200,000)	$ (4,100,000)	$ 112,800,000	$ (4,463,800,000)	$ 73,000,000.0
Adjustments to reconcile net income (loss) to net cash used in operating activities:
(Gain) loss on asset disposals		100,000		(6,000,000.0)	(137,600,000)
Depreciation expense	37,500,000	16,600,000	22,300,000	159,600,000	44,800,000
Loss on impairment	0	0	34,500,000	756,500,000	34,500,000
Accretion of discount on shareholders note		(6,000,000)	(7,700,000)	0	(15,400,000)
Equity in earnings of ARO	(1,200,000)	(4,800,000)	(8,700,000)	(3,100,000)	(13,000,000.0)
Net periodic pension and retiree medical income	(1,400,000)	(2,400,000)	(4,100,000)	(5,400,000)	(8,100,000)
Deferred income tax expense (benefit)	(19,100,000)	1,100,000	7,300,000	(18,200,000)	6,700,000
Share-based compensation expense		0		4,800,000	6,900,000
Amortization, net		(300,000)		(4,800,000)	(1,600,000)
Amortization of debt issuance cost		400,000		0	400,000
Non-cash reorganization items, net		0		3,487,300,000	0
Other		(200,000)		7,300,000	300,000
Changes in operating assets and liabilities		(25,700,000)		68,500,000	(102,300,000)
Contributions to pension plans and other post-retirement benefits		600,000		22,500,000	2,700,000
Net cash used in operating activities		(25,900,000)		(39,800,000)	(114,100,000)
INVESTING ACTIVITIES
Additions to property and equipment		8,100,000		8,700,000	99,600,000
Net proceeds from disposition of assets		200,000		30,100,000	146,500,000
Net cash provided by (used in) investing activities		(7,900,000)		21,400,000	46,900,000
FINANCING ACTIVITIES
Issuance of first lien notes		0		520,000,000.0	0
Payments to Predecessor creditors		0		129,900,000	0
Other		0		(1,400,000)	(200,000)
Net cash provided by (used in) financing activities		0		388,700,000	(200,000)
Effect of exchange rate changes on cash and cash equivalents and restricted cash		(300,000)		(100,000)	100,000
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH		(34,100,000)		370,200,000	(67,300,000)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD		696,000,000.0		325,800,000	644,600,000
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	$ 696,000,000.0	$ 661,900,000	$ 577,300,000	$ 696,000,000.0	$ 577,300,000

No definition available.

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1F
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227