Comprehensive income (Tables)

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Components of Other Comprehensive Income (Loss) and Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Net Income

The following tables display the components of other comprehensive income (loss) and amounts reclassified from accumulated other comprehensive income (loss) to net income:

	Investment			Defined Benefit						Total Amount				Income
	Securities			Plans			Other			Before Tax				Tax			Net
	(In thousands)
Balance — January 1, 2023	$	(444,192	)		(272,856	)		(349,129	)	$	(1,066,177	)			276,147		$	(790,030	)
Other comprehensive income (loss) before reclassifications:
Unrealized holding gains, net		89,198			—			—			89,198				(24,058	)		65,140
Foreign currency translation adjustment		—			—			1,807			1,807				(613	)		1,194
Unrealized gains on cash flow hedges		—			—			51,038			51,038				(13,503	)		37,535
Total other comprehensive income (loss) before    reclassifications		89,198			—			52,845			142,043				(38,174	)		103,869
Amounts reclassified from accumulated other comprehensive    income (loss) that (increase) decrease net income:
Accretion of net gain on terminated cash flow hedges		—			—			(30	)		(30	)	(b)		8			(22	)
Net yield adjustment from cash flow hedges    currently in effect		—			—			59,039			59,039		(a)		(15,619	)		43,420
Amortization of prior service credit		—			(475	)		—			(475	)	(c)		(51	)		(526	)
Amortization of actuarial losses		—			(1,550	)		—			(1,550	)	(c)		(166	)		(1,716	)
Total other comprehensive income (loss)		89,198			(2,025	)		111,854			199,027				(54,002	)		145,025
Balance — March 31, 2023	$	(354,994	)		(274,881	)		(237,275	)	$	(867,150	)			222,145		$	(645,005	)
Balance — January 1, 2022	$	104,691			(360,276	)		83,531		$	(172,054	)			44,476		$	(127,578	)
Other comprehensive income (loss) before reclassifications:
Unrealized holding losses, net		(184,955	)		—			—			(184,955	)			47,758			(137,197	)
Foreign currency translation adjustment		—			—			(2,123	)		(2,123	)			475			(1,648	)
Unrealized losses on cash flow hedges		—			—			(115,724	)		(115,724	)			29,885			(85,839	)
Total other comprehensive income (loss) before    reclassifications		(184,955	)		—			(117,847	)		(302,802	)			78,118			(224,684	)
Amounts reclassified from accumulated other comprehensive    income (loss) that (increase) decrease net income:
Amortization of unrealized holding losses on    held-to-maturity securities		1,119			—			—			1,119		(a)		(289	)		830
Accretion of net gain on terminated cash flow hedges		—			—			(30	)		(30	)	(b)		9			(21	)
Net yield adjustment from cash flow hedges    currently in effect		—			—			(38,019	)		(38,019	)	(a)		9,818			(28,201	)
Amortization of prior service credit		—			(950	)		—			(950	)	(c)		305			(645	)
Amortization of actuarial losses		—			4,300			—			4,300		(c)		(1,386	)		2,914
Total other comprehensive income (loss)		(183,836	)		3,350			(155,896	)		(336,382	)			86,575			(249,807	)
Balance — March 31, 2022	$	(79,145	)		(356,926	)		(72,365	)	$	(508,436	)			131,051		$	(377,385	)

(a)Included in interest income.

(b)Included in interest expense.

(c)Included in other costs of operations.

Accumulated Other Comprehensive Income (Loss), Net

Accumulated other comprehensive income (loss), net consisted of the following:

				Defined
	Investment			Benefit
	Securities			Plans			Other			Total
	(In thousands)
Balance — December 31, 2022	$	(329,168	)	$	(202,186	)	$	(258,676	)	$	(790,030	)
Net gain (loss) during period		65,140			(2,242	)		82,127			145,025
Balance — March 31, 2023	$	(264,028	)	$	(204,428	)	$	(176,549	)	$	(645,005	)