Comprehensive Income

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



	Three Months Ended
	March 31, 2018							March 31, 2017
	Before-Tax Amount		Tax Expense			Net-of-Tax Amount		Before-Tax Amount		Tax Expense			Net-of-Tax Amount
Foreign currency translation adjustment	$	95	$	—		$	95	$	51	$	—		$	51
Reclassification of net losses on derivative instruments	153		(40		)	113		153		(60		)	93
Other comprehensive income	$	248	$	(40	)	$	208	$	204	$	(60	)	$	144

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



	March 31, 2018			December 31, 2017
Foreign currency translation	$	1,273		$	1,178
Derivative instruments designated as cash flow hedges	(9,868		)	(9,981		)
Reclassification of certain tax effects from AOCL	(2,143		)	—
Postretirement medical plans	31			31
Accumulated other comprehensive loss	$	(10,707	)	$	(8,772	)

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



		Three Months Ended
		March 31, 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 income before reclassifications		—			—		95		95
Amounts reclassified from AOCL	Interest Expense	113			—		—		113
Net current-period other comprehensive income		113			—		95		208
Reclassification of certain tax effects from AOCL		(2,150		)	7		—		(2,143		)
Ending balance		$	(12,018	)	$	38	$	1,273	$	(10,707	)



		Three Months Ended
		March 31, 2017
	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		$	(10,352	)	$	(742	)	$	1,380	(9,714		)
Other comprehensive income before reclassifications		—			—			51		51
Amounts reclassified from AOCL	Interest Expense	93			—			—		93
Net current-period other comprehensive income		93			—			51		144
Ending balance		$	(10,259	)	$	(742	)	$	1,431	$	(9,570	)