Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Detail)

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Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Current Provision:      
Federal $ 2,492 $ 1,180 $ 1,479
State and local 2,596 1,919 1,957
Total Current Provision 5,088 3,099 3,436
Deferred Provision:      
Federal 8,062 1,676 1,151
State and local 584 (89) 2,382
Total Deferred Provision 8,646 1,587 3,533
Total Provision for Income Taxes $ 13,734 $ 4,686 $ 6,969