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Interim Financial Statements (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2024
Feb. 22, 2024
Oct. 31, 2023
Dividends payable, amount per share   $ 0.125  
Purchase of treasury shares (in shares) 587,928    
Purchase of treasury shares $ 25,756    
Class A Common Stock [Member] | 2023 Share Repurchase Program [Member]      
Stock repurchase program, authorized amount     $ 250,000