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Earnings Per Share (Narrative) (Detail) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Stock Options [Member]        
Anti-dilutive awards 0 88 0 545
Restricted Stock [Member]        
Anti-dilutive awards 218 0 306 3,620