Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2022

Stockholders' Equity

Reconciliation of number of shares outstanding with the number of shares used in computing basic and diluted earnings per share

The following table reconciles the number of shares outstanding with the number of shares used in computing basic and diluted earnings per share for each of the periods presented (in thousands):

	Three Months Ended
	March 31,
	2022	2021
Common shares outstanding, end of period	35,953	36,255
Effect of using weighted average common shares outstanding	123	31
Shares used in computing earnings per share—basic	36,076	36,286
Effect of shares issuable under stock option plans based on the treasury stock method	43	131
Effect of restricted and contingently issuable shares	69	82
Shares used in computing earnings per share—diluted	36,188	36,499