Stockholders' Equity - Number of Shares (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Reconciliation of the number of shares outstanding with the number of shares used in computing basic and diluted earnings per share
Common shares outstanding, end of period	35,695	35,752
Effect of using weighted average common shares outstanding	44	60
Shares used in computing earnings per share-basic	35,739	35,812
Effect of shares issuable under stock option plans based on the treasury stock method	29	26
Effect of restricted and contingently issuable shares	60	69
Shares used in computing earnings per share-diluted	35,828	35,907