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Net Income Per Common Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Net Income Per Common Share [Table Text Block]

The following table sets forth the computation of basic and diluted net income per common share:

			Year Ended December 31
			2022						2021						2020
			(thousands, except per-share data)
Net income			$	857,658					$	712,486					$	174,979
Weighted average common shares outstanding during the period (for basic calculation)			39,526						39,420						39,277
Dilutive effect of other potential common shares			246						226						154
Weighted average common shares and potential common shares (for diluted calculation)			39,772						39,646						39,431
Net income per common share - Basic			$	21.70					$	18.07					$	4.45
Net income per common share - Diluted			$	21.56					$	17.97					$	4.44

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- References

No definition available.

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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