Components of Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2020

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Income/(Loss)

The following table provides the changes in accumulated other comprehensive income (loss) by component, net of tax, for the three and nine months ended September 30, 2020 and 2019:

(Dollars in thousands)	Securities AFS		Cash Flow Hedges		Pension and Post-retirement Plans		Total
Balance as of July 1, 2020	$	118,327	$	16,305	$	(269,430)	$	(134,798)
Net unrealized gains (losses)	(6,121)		(805)		(141)		(7,067)
Amounts reclassified from AOCI	1,003		(2,128)		2,520		1,395
Other comprehensive income (loss)	(5,118)		(2,933)		2,379		(5,672)
Balance as of September 30, 2020	$	113,209	$	13,372	$	(267,051)	$	(140,470)
Balance as of January 1, 2020	$	31,079	$	3,227	$	(273,914)	$	(239,608)
Net unrealized gains (losses)	81,127		13,998		(163)		94,962
Amounts reclassified from AOCI	1,003		(3,853)		7,026		4,176
Other comprehensive income (loss)	82,130		10,145		6,863		99,138
Balance as of September 30, 2020	$	113,209	$	13,372	$	(267,051)	$	(140,470)

(Dollars in thousands)	Securities AFS		Cash Flow Hedges		Pension and Post-retirement Plans		Total
Balance as of July 1, 2019	$	21,071	$	2,184	$	(285,744)	$	(262,489)
Net unrealized gains (losses)	16,889		1,855		—		18,744
Amounts reclassified from AOCI	—		989		2,102		3,091
Other comprehensive income (loss)	16,889		2,844		2,102		21,835
Balance as of September 30, 2019	$	37,960	$	5,028	$	(283,642)	$	(240,654)
Balance as of January 1, 2019	$	(75,736)	$	(12,112)	$	(288,768)	$	(376,616)
Net unrealized gains (losses)	113,495		13,367		—		126,862
Amounts reclassified from AOCI	201		3,773		5,126		9,100
Other comprehensive income (loss)	113,696		17,140		5,126		135,962
Balance as of September 30, 2019	$	37,960	$	5,028	$	(283,642)	$	(240,654)

Reclassification Out Of Accumulated Other Comprehensive Income

Reclassifications from AOCI, and related tax effects, were as follows:

(Dollars in thousands)	Three Months Ended September 30,				Nine Months Ended September 30,
Details about AOCI	2020		2019		2020		2019		Affected line item in the statement where net income is presented
Securities AFS:
Realized (gains) losses on securities AFS	$	1,323	$	—	$	1,323	$	267	Securities gains (losses), net
Tax expense (benefit)	(320)		—		(320)		(66)		Provision (benefit) for income taxes
	1,003		—		1,003		201
Cash flow hedges:
Realized (gains) losses on cash flow hedges	(2,807)		1,313		(5,084)		5,012		Interest and fees on loans and leases
Tax expense (benefit)	679		(324)		1,231		(1,239)		Provision (benefit) for income taxes
	(2,128)		989		(3,853)		3,773
Pension and Postretirement Plans:
Amortization of prior service cost and net actuarial gain (loss)	3,325		2,792		9,270		6,809		All other expense
Tax expense (benefit)	(805)		(690)		(2,244)		(1,683)		Provision (benefit) for income taxes
	2,520		2,102		7,026		5,126
Total reclassification from AOCI	$	1,395	$	3,091	$	4,176	$	9,100