Effective Income Tax Rate Reconciliation, Revaluation of State Deferred Tax Asset

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Income Tax Reconciliation Deductions Earnings On Life Insurance

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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The amount of plan compensation cost recognized during the period.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.

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Income Taxes - Schedule of Income Tax Reconciliation (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income before provision for income taxes	$ 26,631	$ 31,273	$ 23,445	$ 26,009	$ 31,001	$ 29,349	$ 18,720	$ 6,432	$ 107,358	$ 85,502	$ 65,325
Applicable statutory Federal income tax rate									21.00%	21.00%	35.00%
Computed “expected” Federal income tax expense									$ 22,545	$ 17,955	$ 22,864
(Decrease) increase in Federal income tax expense resulting from
Tax exempt interest									(665)	(615)	(839)
ESOP fair market value adjustment									77	125	223
ESOP dividends									(151)	(136)	(230)
Earnings on BOLI									(1,138)	(1,072)	(1,155)
Merger related expenses									297	322	478
State income taxes net of Federal benefit									583	85	110
Stock compensation									(386)	(758)	(1,823)
Revaluation of state deferred tax asset									(2,205)	0	0
Impact of Tax Cuts and Jobs Act (“Tax Reform”)									0	(1,854)	3,643
Reclassification of certain tax effect from accumulated other comprehensive income									(221)	(586)	0
Other items, net									48	104	(416)
Income tax expense (benefit)	$ 3,181	$ 6,302	$ 4,465	$ 4,836	$ 4,269	$ 5,278	$ 3,018	$ 1,005	$ 18,784	$ 13,570	$ 22,855