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INCOME TAXES - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Income Tax Disclosure [Abstract]          
Income tax expense (benefit) $ (5,300,000) $ 4,300,000 $ (7,500,000) $ 7,000,000.0  
Effective tax rate (percent) 22.30% 20.60% 23.00% 22.90%  
Valuation allowance $ 0   $ 0   $ 0
Net deferred tax asset 48,300,000   48,300,000   44,900,000
Valuation Allowance [Line Items]          
Unrecognized tax benefits 1,000,000.0   1,000,000.0   977,000
Unrecognized tax benefits that would impact the effective tax rate 820,000   820,000    
Accrued interest or penalties $ 0   0   $ 0
Unrealized gain on securities available-for-sale          
Valuation Allowance [Line Items]          
Increase (decrease) in deferred tax asset     1,500,000    
Change in expected credit loss estimate          
Valuation Allowance [Line Items]          
Increase (decrease) in deferred tax asset     $ 1,900,000