INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Deferred Tax Assets and Liabilities

Net deferred tax assets and liabilities consist of the following components as of December 31, 2019 and 2018 (dollars in thousands):

	2019		2018
Deferred tax assets:
Loan losses	$	18,938	$	19,369
Benefit plans		3,507		3,925
Acquisition accounting		16,021		11,788
Lease right-of-use asset		13,507		—
Stock grants		2,032		894
OREO		3,295		2,515
Securities available for sale		1,169		1,577
Net operating losses		55,023		66,037
Nonaccrual loans		3,243		3,990
Other		4,227		4,618
Total deferred tax assets	$	120,962	$	114,713
Deferred tax liabilities:
Acquisition accounting	$	19,815	$	13,053
Lease right-of-use liability		11,191		—
Premises and equipment		6,696		3,877
Securities available for sale		10,069		25
Other		511		583
Total deferred tax liabilities		48,282		17,538
Net deferred tax asset	$	72,680	$	97,175

Provision for Income Taxes Charged to Operations

The provision for income taxes charged to continuing operations for the years ended December 31, 2019, 2018, and 2017 consists of the following (dollars in thousands):

	2019		2018		2017
Current tax expense	$	22,500	$	12,114	$	27,255
Deferred tax expense (1)		15,057		17,902		5,535
Income tax expense	$	37,557	$	30,016	$	32,790

(1) The deferred tax expense for the year ended December 31, 2017 includes the impact of the Tax Act.

Schedule of Income Tax Expense, Difference in Income Tax Rate to Pretax Income

The income tax expense differs from the amount of income tax determined by applying the U.S. federal income tax rate to pre-tax income for the years ended December 31, 2019, 2018, and 2017, due to the following (dollars in thousands):

	2019		2018		2017
Computed "expected" tax expense	$	48,564	$	37,680	$	36,738
(Decrease) in taxes resulting from:
Tax-exempt interest income, net		(8,259)		(5,188)		(6,112)
Valuation allowance adjustment		—		—		(2,982)
Impact of the Tax Act		—		—		6,105
State income tax benefit		(1,078)		(1,133)		—
Other, net		(1,670)		(1,343)		(959)
Income tax expense	$	37,557	$	30,016	$	32,790