Basic net income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per common share is computed by dividing net income by the combination of the weighted average number of common shares outstanding during the period and other potentially dilutive weighted average common shares. Other potentially dilutive weighted average common shares include the dilutive effect of restricted stock units and performance stock units for each period using the treasury stock method. Under the treasury stock method, the amount of compensation expense, if any, for future service that has not yet been recognized is assumed to be used to repurchase shares in the current period.


	Three Months Ended June 30				Six Months Ended June 30
	2026		2025		2026		2025
	(thousands, except per-share data)
Net income	$	57,342	$	61,985	$	75,184	$	102,333
Weighted average common shares outstanding during the period (for basic calculation)	35,212		37,682		35,559		37,848
Dilutive effect of other potential common shares	15		113		57		151
Weighted average common shares and potential common shares (for diluted calculation)	35,227		37,795		35,616		37,999

Net income per common share - Basic	$	1.63	$	1.64	$	2.11	$	2.70
Net income per common share - Diluted	$	1.63	$	1.64	$	2.11	$	2.69

The computation of the dilutive effect of other potential common shares excludes stock awards representing 0.2 million shares of common stock in both the three and six months ended June 30, 2026, and 0.1 million shares of common stock in both the three and six months ended June 30, 2025. Under the treasury stock method, the inclusion of these stock awards would have been antidilutive.