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Earnings per Common Share - (Tables)
9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
Reconciliation of Number of Common Shares Used in Calculating Basic and Diluted Net Earnings per Share
 Quarter Ended September 30,Nine Months Ended September 30,
(In thousands)2023202220232022
Basic weighted-average common shares outstanding16,682 16,754 16,800 16,777 
Incremental shares due to:
Stock-based awards120 197 139 181 
Performance shares94 137 112 127 
Stock options— — — 
Diluted weighted-average common shares outstanding16,895 17,093 17,051 17,085