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Other net losses - Other Net Losses (Gains) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Other Income and Expenses [Abstract]
Acquisition and transition-related costs	$ 0	$ 2,315	$ 0	$ 3,940
Kentucky termination costs	43,808	3,535	46,527	4,075
Acquisition-related settlement payment	(11,983)	0	(11,983)	0
Other	8,542	2,802	9,285	5,367
Other losses	$ 40,367	$ 8,652	$ 43,829	$ 13,382

X

- Definition

Business Acquisition Related Settlement Payment

+ References

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- Definition

Business Combination, Termination Fee

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- Definition

The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 932
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(7)(ii))
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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
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-Topic 360
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-Publisher FASB
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Amount of expense related to nonoperating activities, classified as other.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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