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Earnings Per Share - Number of Weighted-Average Potentially Dilutive Shares Excluded from Calculation of Diluted Net Income (Loss) Per Share (Detail) - shares
3 Months Ended 6 Months Ended
Mar. 31, 2022
Mar. 31, 2022
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from calculation of diluted net income (loss) per share 902 1,906
Number of Warrants [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from calculation of diluted net income (loss) per share 818 1,671
Restricted Stock [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from calculation of diluted net income (loss) per share 84 235