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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of components of income tax expense (benefit)

Components of income tax expense (benefit) for the years ended December 31, 2018, 2017 and 2016 were as follows:

	Year Ended December 31,
	2018				2017				2016
	(Dollars in thousands)
Current expense:
Federal	$	10,812			$	2,471			$	1,850
State	72				(81		)		(4		)
Total current	10,884				2,390				1,846
Deferred expense:
Federal	2,137				27,263				19,842
State	5,737				4,943				4,585
Total deferred	7,874				32,206				24,427
Provision for income taxes	$	18,758			$	34,596			$	26,273

Schedule of the reasons of difference between the income tax expense (benefit) and the expected tax expense

Income tax expense (benefit) for the periods presented differed from the "expected" tax expense (computed by applying the U.S. federal corporate tax rate of 21% for the year ended December 31, 2018 and 35% for the years ended December 31, 2017 and 2016, to income (loss) before income taxes) for the following reasons:

	Year Ended December 31,
	2018				2017				2016
	(Dollars in thousands)
Computed "expected" tax expense (benefit)	$	16,430			$	26,270			$	25,260
Increase (decrease) in taxes resulting from:
Tax-exempt interest income	(808		)		(1,387		)		(1,410		)
Other tax-exempt income	(445		)		(1,186		)		(940		)
Low-income housing and energy tax credits	35				(594		)		(129		)
State income taxes, net of Federal income tax effect, excluding impact of deferred tax valuation allowance	4,756				3,348				3,256
Change in the beginning-of-the-year balance of the valuation allowance for deferred tax assets allocated to income tax expense	140				570				(52		)
Impact of Tax Reform on net deferred tax assets	(1,542		)		7,440				—
Other, net	192				135				288
Total	$	18,758			$	34,596			$	26,273

Schedule of the tax effects of temporary differences giving rise to significant portions of the deferred tax assets and deferred tax liabilities

The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities were as follows:

	December 31,
	2018				2017
	(Dollars in thousands)
Deferred tax assets
Allowance for loan and lease losses	$	10,112			$	10,622
Accrued expenses	1,517				294
Employee retirement benefits	2,595				2,784
Federal and state tax credit carryforwards	7,728				12,473
State net operating loss carryforwards	3,291				3,306
Restricted stock and non-qualified stock options	1,001				661
Premises and equipment	3,157				3,633
Other	3,485				3,169
Total deferred tax assets	32,886				36,942
Deferred tax liabilities
Intangible assets	4,189				4,785
Other	3,698				2,343
Total deferred tax liabilities	7,887				7,128
Less: Deferred tax valuation allowance	3,461				3,321
Net deferred tax assets	$	21,538			$	26,493

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- Definition

Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319

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- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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