OTHER COMPREHENSIVE INCOME (Tables)

12 Months Ended

Dec. 31, 2021

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Reclassification adjustments

Information regarding amounts reclassified from accumulated other comprehensive loss to net income (loss) was as follows:

Accumulated other comprehensive loss components	Amounts reclassified from accumulated other comprehensive loss						Affected line item in consolidated statements of income (loss)
(in thousands)	2021		2020		2019
Amortization of postretirement benefit plan items:
Prior service credit	$	1,421	$	1,421	$	1,421	Other income
Net actuarial loss	(1,629)		(2,301)		(3,223)		Other income
Total amortization	(208)		(880)		(1,802)		Other income
Tax (expense) benefit	(123)		46		273		Income tax provision
Amortization of postretirement benefit plan items, net of tax	(331)		(834)		(1,529)		Net income (loss)
Interest rate swap:
Realized (loss) gain on interest rate swap	(1,384)		(968)		77		Interest expense
Tax benefit (expense)	361		249		(20)		Income tax provision
Realized (loss) gain on interest rate swap, net of tax	(1,023)		(719)		57		Net income (loss)
Debt securities:
Realized gain on debt securities	—		206		—		Service revenue
Tax expense	—		(53)		—		Income tax provision
Realized gain on debt securities, net of tax	—		153		—		Net income (loss)
Total reclassifications, net of tax	$	(1,354)	$	(1,400)	$	(1,472)

Accumulated other comprehensive loss

Changes in the components of accumulated other comprehensive loss were as follows:

(in thousands)	Postretirement benefit plans		Net unrealized loss on available-for-sale debt securities		Net unrealized loss on cash flow hedge		Currency translation adjustment		Accumulated other comprehensive loss
Balance, December 31, 2018	$	(36,529)	$	(323)	$	—	$	(19,727)	$	(56,579)
Other comprehensive income (loss) before reclassifications	6,594		48		(1,040)		1,558		7,160
Amounts reclassified from accumulated other comprehensive loss	1,529		—		(57)		—		1,472
Net current-period other comprehensive income (loss)	8,123		48		(1,097)		1,558		8,632
Balance, December 31, 2019	(28,406)		(275)		(1,097)		(18,169)		(47,947)
Other comprehensive income (loss) before reclassifications	5,616		338		(4,973)		4,133		5,114
Amounts reclassified from accumulated other comprehensive loss	834		(153)		719		—		1,400
Net current-period other comprehensive income (loss)	6,450		185		(4,254)		4,133		6,514
Balance, December 31, 2020	(21,956)		(90)		(5,351)		(14,036)		(41,433)
Other comprehensive income (loss) before reclassifications	6,194		(254)		2,067		580		8,587
Amounts reclassified from accumulated other comprehensive loss	331		—		1,023		—		1,354
Net current-period other comprehensive income (loss)	6,525		(254)		3,090		580		9,941
Balance, December 31, 2021	$	(15,431)	$	(344)	$	(2,261)	$	(13,456)	$	(31,492)