Accumulated Other Comprehensive (Income) Loss (Tables)

9 Months Ended

Sep. 30, 2022

Statement of Financial Position [Abstract]

Comprehensive Income (Loss) [Table Text Block]

The following tables display the components of Other Comprehensive (Loss) Income, after-tax, and the related tax effects (in thousands):

	Three Months Ended
	September 30, 2022						September 30, 2021
	Before-Tax Amount		Tax Expense		Net-of-Tax Amount		Before-Tax Amount		Tax Expense		Net-of-Tax Amount
Foreign currency translation adjustment	$	(4)	$	—	$	(4)	$	(1)	$	—	$	(1)
Reclassification of net income on derivative instruments	153		(40)		113		153		(40)		113
Postretirement medical liability adjustment	(212)		54		(158)		(212)		53		(159)
Other comprehensive (loss) income	$	(63)	$	14	$	(49)	$	(60)	$	13	$	(47)

	Nine Months Ended
	September 30, 2022						September 30, 2021
	Before-Tax Amount		Tax Expense		Net-of-Tax Amount		Before-Tax Amount		Tax Expense		Net-of-Tax Amount
Foreign currency translation adjustment	$	(5)	$	—	$	(5)	$	(56)	$	—	$	(56)
Reclassification of net income on derivative instruments	459		(120)		339		459		(120)		339
Postretirement medical liability adjustment	(636)		162		(474)		(636)		160		(476)
Other comprehensive (loss) income	$	(182)	$	42	$	(140)	$	(233)	$	40	$	(193)

Accumulated Other Comprehensive Income [Table Text Block]

Balances by classification included within accumulated other comprehensive loss (AOCL) on the Condensed Consolidated Balance Sheets are as follows, net of tax (in thousands):

	September 30, 2022		December 31, 2021
Foreign currency translation	$	1,438	$	1,443
Derivative instruments designated as cash flow hedges	(9,938)		(10,277)
Postretirement medical plans	1,050		1,524
Accumulated other comprehensive loss	$	(7,450)	$	(7,310)

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following tables display the changes in AOCL by component, net of tax (in thousands):

		Three Months Ended
		September 30, 2022
	Affected Line Item in the Condensed Consolidated Statements of Income	Interest Rate Derivative Instruments Designated as Cash Flow Hedges		Postretirement Medical Plans		Foreign Currency Translation		Total
Beginning balance		$	(10,051)	$	1,208	$	1,442	$	(7,401)
Other comprehensive income before reclassifications		—		—		(4)		(4)
Amounts reclassified from AOCL	Interest Expense	113		—		—		113
Amounts reclassified from AOCL		—		(158)		—		(158)
Net current-period other comprehensive income (loss)		113		(158)		(4)		(49)
Ending balance		$	(9,938)	$	1,050	$	1,438	$	(7,450)

		Three Months Ended
		September 30, 2021
	Affected Line Item in the Condensed Consolidated Statements of Income	Interest Rate Derivative Instruments Designated as Cash Flow Hedges		Postretirement Medical Plans		Foreign Currency Translation		Total
Beginning balance		$	(10,503)	$	1,643	$	1,445	$	(7,415)
Other comprehensive income before reclassifications		—		—		(1)		(1)
Amounts reclassified from AOCL	Interest Expense	113		—		—		113
Amounts reclassified from AOCL		—		(159)		—		(159)
Net current-period other comprehensive income (loss)		113		(159)		(1)		(47)
Ending balance		$	(10,390)	$	1,484	$	1,444	$	(7,462)

		Nine Months Ended
		September 30, 2022
	Affected Line Item in the Condensed Consolidated Statements of Income	Interest Rate Derivative Instruments Designated as Cash Flow Hedges		Pension and Postretirement Medical Plans		Foreign Currency Translation		Total
Beginning balance		$	(10,277)	$	1,524	$	1,443	$	(7,310)
Other comprehensive loss before reclassifications		—		—		(5)		(5)
Amounts reclassified from AOCL	Interest Expense	339		—		—		339
Amounts reclassified from AOCL		—		(474)		—		(474)
Net current-period other comprehensive income (loss)		339		(474)		(5)		(140)
Ending balance		$	(9,938)	$	1,050	$	1,438	$	(7,450)

		Nine Months Ended
		September 30, 2021
	Affected Line Item in the Condensed Consolidated Statements of Income	Interest Rate Derivative Instruments Designated as Cash Flow Hedges		Pension and Postretirement Medical Plans		Foreign Currency Translation		Total
Beginning balance		$	(10,729)	$	1,960	$	1,500	$	(7,269)
Other comprehensive loss before reclassifications		—		—		(56)		(56)
Amounts reclassified from AOCL	Interest Expense	339		—		—		339
Amounts reclassified from AOCL		—		(476)		—		(476)
Net current-period other comprehensive income (loss)		339		(476)		(56)		(193)
Ending balance		$	(10,390)	$	1,484	$	1,444	$	(7,462)