OTHER COMPREHENSIVE INCOME (LOSS):

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

OTHER COMPREHENSIVE INCOME (LOSS)

OTHER COMPREHENSIVE INCOME (LOSS):

The following table summarizes the changes, net of tax within each classification of accumulated other comprehensive income for the years ended December 31, 2020 and 2019.

	Unrealized
	gains and		2020
	Losses on available- for-sale		Retirement
(Dollar amounts in thousands)	Securities		plans		Total
Beginning balance, January 1	$	14,893	$	(22,394)	$	(7,501)
Change in other comprehensive income before reclassification	19,444		(3,479)		15,965
Amounts reclassified from accumulated other comprehensive income	(175)		1,475		1,300
Net current period other comprehensive income (loss)	19,269		(2,004)		17,265
Ending balance, December 31	$	34,162	$	(24,398)	$	9,764

	Unrealized
	gains and		2019
	Losses on available- for-sale		Retirement
(Dollar amounts in thousands)	Securities		plans		Total
Beginning balance, January 1	$	(6,105)	$	(17,349)	$	(23,454)
Change in other comprehensive income before reclassification	21,031		(6,213)		14,818
Amounts reclassified from accumulated other comprehensive income	(33)		1,168		1,135
Net current period other comprehensive income (loss)	20,998		(5,045)		15,953
Ending balance, December 31	$	14,893	$	(22,394)	$	(7,501)

	Balance at		Current Period		Balance at
(Dollar amounts in thousands)	1/1/2020		Change		12/31/2020
Unrealized gains (losses) on securities available-for-sale
without other than temporary impairment	$	12,178	$	19,632	$	31,810
Unrealized gains (losses) on securities available-for-sale
with other than temporary impairment	2,715		(363)		2,352
Total unrealized gain (loss) on securities available-for-sale	$	14,893	$	19,269	$	34,162
Unrealized loss on retirement plans	(22,394)		(2,004)		(24,398)
TOTAL	$	(7,501)	$	17,265	$	9,764

	Balance at		Current Period		Balance at
(Dollar amounts in thousands)	1/1/2019		Change		12/31/2019
Unrealized gains (losses) on securities available-for-sale
without other than temporary impairment	$	(8,446)	$	20,624	$	12,178
Unrealized gains (losses) on securities available-for-sale
with other than temporary impairment	2,341		374		2,715
Total unrealized gain (loss) on securities available-for-sale	$	(6,105)	$	20,998	$	14,893
Unrealized loss on retirement plans	(17,349)		(5,045)		(22,394)
TOTAL	$	(23,454)	$	15,953	$	(7,501)

	Balance at December 31, 2020
Details about accumulated	Amount reclassified from		Affected line item in
other comprehensive	accumulated other		the statement where
income components	comprehensive income		net income is presented
	(in thousands)
Unrealized gains and losses	$	233	Net securities gains (losses)
on available-for-sale	(58)		Income tax expense
securities	$	175	Net of tax
Amortization of	$	(1,967)	(a)
retirement plan items	492		Income tax expense
	$	(1,475)	Net of tax
Total reclassifications for the period	$	(1,300)	Net of tax

(a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).

	Balance at December 31, 2019
Details about accumulated	Amount reclassified from		Affected line item in
other comprehensive	accumulated other		the statement where
income components	comprehensive income		net income is presented
	(in thousands)
Unrealized gains and losses	$	44	Net securities gains (losses)
on available-for-sale	(11)		Income tax expense
securities	$	33	Net of tax
Amortization of	$	(1,558)	(a)
retirement plan items	390		Income tax expense
	$	(1,168)	Net of tax
Total reclassifications for the period	$	(1,135)	Net of tax

(a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).

	Balance at December 31, 2018
Details about accumulated	Amount reclassified from		Affected line item in
other comprehensive	accumulated other		the statement where
income components	comprehensive income		net income is presented
	(in thousands)
Unrealized gains and losses	$	2	Net securities gains (losses)
on available-for-sale	—		Income tax expense
securities	$	2	Net of tax
Amortization of	$	(1,447)	(a)
retirement plan items	362		Income tax expense
	$	(1,085)	Net of tax
Total reclassifications for the period	$	(1,083)	Net of tax

(a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).