Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Stockholders Equity Note [Abstract]

Components of Accumulated Other Comprehensive Income (Loss)

	Available for Sale Securities			HTM Securities Transferred from AFS			Employee Benefit Plans			Cash Flow Hedges			Equity Method Investment			Total
(in thousands)
Balance, December 31, 2018	$	(50,125	)	$	(12,044	)	$	(110,247	)	$	(8,293	)	$	—		$	(180,709	)
Net change in unrealized gain or loss		96,514			—			—			29,343			611			126,468
Reclassification of net loss realized and included in earnings		—			—			4,527			3,676			—			8,203
Amortization of unrealized net loss on securities transferred to HTM		—			1,481			—			—			—			1,481
Income tax expense		21,822			335			1,023			7,466			—			30,646
Balance, June 30, 2019	$	24,567		$	(10,898	)	$	(106,743	)	$	17,260		$	611		$	(75,203	)
Balance, December 31, 2019	$	28,950		$	639		$	(101,278	)	$	17,399		$	(434	)	$	(54,724	)
Net change in unrealized gain or loss		171,333			—			—			46,480			(984	)		216,829
Reclassification of net income or loss realized and included in earnings		—			—			2,944			(5,461	)		—			(2,517	)
Valuation adjustment to employee benefit plans		—			—			(10,251	)		—			—			(10,251	)
Amortization of unrealized net gain on securities transferred to HTM		—			(289	)		—			—			—			(289	)
Income tax expense (benefit)		38,759			(65	)		(1,653	)		9,281			—			46,322
Balance, June 30, 2020	$	161,524		$	415		$	(106,932	)	$	49,137		$	(1,418	)	$	102,726

Line Items in Consolidated Income Statements Affected by Amounts Reclassified from Accumulated Other Comprehensive Income

The following table shows the line items of the consolidated statements of income affected by amounts reclassified from AOCI.

	Six Months Ended
Amount reclassified from AOCI (a)	June 30,						Affected line item on
(in thousands)	2020			2019			the statement of income
Amortization of unrealized net gain or loss or gain on securities transferred to HTM	$	289		$	(1,481	)	Interest income
Tax effect		(65	)		335		Income taxes
Net of tax		224			(1,146	)	Net income
Amortization of defined benefit pension and post-retirement items		(2,944	)		(4,527	)	Other noninterest expense (b)
Tax effect		666			1,023		Income taxes
Net of tax		(2,278	)		(3,504	)	Net income
Reclassification of unrealized gain (loss) on cash flow hedges		6,550			(1,204	)	Interest income
Tax effect		(1,482	)		272		Income taxes
Net of tax		5,068			(932	)	Net income
Amortization of loss on terminated cash flow hedges		(1,089	)		(2,472	)	Interest income
Tax effect		246			559		Income taxes
Net of tax		(843	)		(1,913	)	Net income
Total reclassifications, net of tax	$	2,171		$	(7,495	)	Net income

(a) Amounts in parentheses indicate reduction in net income.

(b) These AOCI components are included in the computation of net periodic pension and post-retirement cost that is reported with other noninterest expense (see Note 12 – Retirement Plans for additional details).