Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2022

Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The denominators of the basic and diluted earnings per share computations are as follows (in thousands):

	Three Months Ended June 30,		Six Months Ended June 30,
	2022	2021	2022	2021
Weighted-average common shares outstanding—basic	89,225	89,554	89,310	89,555
Dilutive effect of potential common shares	146	118	139	132
Weighted-average common shares outstanding—diluted	89,371	89,672	89,449	89,687