Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2021

Equity

Summary of Changes in Accumulated Other Comprehensive Loss by Component

Changes in accumulated other comprehensive loss by component for the six months ended June 30, 2021 and 2020 consisted of the following (in thousands):

			Other-Than-
	Minimum		Temporary
	Pension		Impairment of		Interest Rate
	Liability		Investment		Derivatives		Total
Balance, December 31, 2020	$	(26,623)	$	(3,509)	$	(27,819)	$	(57,951)
Gains arising during period		8,324		—		176		8,500
Amounts reclassified from accumulated other comprehensive loss		588		105		8,111		8,804
Net other comprehensive income		8,912		105		8,287		17,304
Balance, June 30, 2021	$	(17,711)	$	(3,404)	$	(19,532)	$	(40,647)

			Other-Than-
	Minimum		Temporary
	Pension		Impairment of		Interest Rate
	Liability		Investment		Derivatives		Total
Balance, December 31, 2019	$	(23,916)	$	(5,877)	$	1,634	$	(28,159)
Losses arising during period		(1,106)		—		(40,148)		(41,254)
Amounts reclassified from accumulated other comprehensive loss		33		105		2,490		2,628
Net other comprehensive income (loss)		(1,073)		105		(37,658)		(38,626)
Transition adjustment related to adoption of ASU 2016-13		—		2,158		—		2,158
Balance, June 30, 2020	$	(24,989)	$	(3,614)	$	(36,024)	$	(64,627)