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Earnings Per Share - Calculations of Net Income (Loss) Per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Jun. 30, 2022
Jun. 30, 2021
Earnings Per Share And Equity [Abstract]                
Net income (loss) $ (9,985) $ (42,783) $ (14,274) $ 4,276 $ 5,689 $ 14,118 $ (67,042) $ 24,083
Basic weighted average common shares outstanding 36,183     35,769     36,064 35,642
Add: Incremental shares for:                
Dilutive effect of warrants       3,084       2,536
Dilutive effect of restricted stock       660       633
Diluted weighted average common shares outstanding 36,183     39,513     36,064 38,811
Net income (loss) per share attributable to common shareholders                
Basic $ (0.28)     $ 0.12     $ (1.86) $ 0.68
Diluted $ (0.28)     $ 0.11     $ (1.86) $ 0.62