Income Taxes (Tables)

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

	Three Months Ended September 30,							Nine Months Ended September 30,
thousands except percentages	2021		2020			$ Change		2021			2020			$ Change
Income tax expense (benefit)	$	6,049	$	44,147		$	(38,098)	$	(16,706)		$	3,203		$	(19,909)
Income (loss) before income taxes	8,166		208,149			(199,983)		(79,131)			8,020			(87,151)
Effective tax rate	NM		21.2		%	NM		21.1		%	39.9		%	(18.8)		%

NM—Not Meaningful