Accumulated Other Comprehensive (Income) Loss (Tables)

6 Months Ended

Jun. 30, 2019

Statement of Financial Position [Abstract]

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):

	June 30, 2019			December 31, 2018
Foreign currency translation	$	1,424		$	1,448
Derivative instruments designated as cash flow hedges	(11,408		)	(11,633		)
Postretirement medical plans	251			251
Accumulated other comprehensive loss	$	(9,733	)	$	(9,934	)

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
		June 30, 2019
	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		$	(11,521	)	$	251	$	1,511		$	(9,759	)
Other comprehensive income before reclassifications		—			—		(87		)	(87		)
Amounts reclassified from AOCL	Interest Expense	113			—		—			113
Net current-period other comprehensive income		113			—		(87		)	26
Ending balance		$	(11,408	)	$	251	$	1,424		$	(9,733	)

		Three Months Ended
		June 30, 2018
	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		$	(12,018	)	$	38	$	1,273	$	(10,707	)
Other comprehensive income before reclassifications		—			—		86		86
Amounts reclassified from AOCL	Interest Expense	113			—		—		113
Net current-period other comprehensive income		113			—		86		199
Ending balance		$	(11,905	)	$	38	$	1,359	$	(10,508	)

		Six Months Ended
		June 30, 2019
	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		$	(11,633	)	$	251	$	1,448		(9,934		)
Other comprehensive income before reclassifications		—			—		(24		)	(24		)
Amounts reclassified from AOCL	Interest Expense	225			—		—			225
Net current-period other comprehensive income		225			—		(24		)	201
Ending balance		$	(11,408	)	$	251	$	1,424		$	(9,733	)

		Six Months Ended
		June 30, 2018
	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		$	(9,981	)	$	31	$	1,178	$	(8,772	)
Other comprehensive loss before reclassifications		—			—		181		181
Amounts reclassified from AOCL	Interest Expense	226			—		—		226
Net current-period other comprehensive income (loss)		226			—		181		407
Reclassification of certain tax effects from AOCL		$	(2,150	)	$	7	$	—	(2,143		)
Ending balance		$	(11,905	)	$	38	$	1,359	$	(10,508	)