The activity in AOCI for the three and six months ended June 30, 2019 and 2018 is as follows (in thousands):



	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Pension and other postretirement benefits:
Balance at beginning of period, net of tax	$	(7,503	)	$	(6,627	)	$	(8,027	)	$	(7,126	)
Gain arising during the period	518			491			1,034			979
Less: Tax expense	—			—			—			—
Net gain arising during the period	518			491			1,034			979
Amortization of prior service cost ⁽¹⁾	9			7			17			18
Less: Tax expense	—			—			—			—
Net amount reclassified from AOCI to net income	9			7			17			18
Other comprehensive income, net of tax	527			498			1,051			997
Balance at end of period, net of tax	(6,976		)	(6,129		)	(6,976		)	(6,129		)
Foreign currency translation adjustments:
Balance at beginning of period, net of tax	(2,101		)	6,845			(3,322		)	8,318
Loss on foreign currency translation	(2,257		)	(4,723		)	(1,036		)	(6,196		)
Less: Tax expense	—			—			—			—
Net loss on foreign currency translation	(2,257		)	(4,723		)	(1,036		)	(6,196		)
Balance at end of period, net of tax	(4,358		)	2,122			(4,358		)	2,122
Cash flow hedge derivatives:
Balance at beginning of period, net of tax	(3,880		)	(1,386		)	(1,166		)	(1,422		)
Unrealized loss on cash flow hedge derivatives	(1		)	(74		)	(3,985		)	(388		)
Less: Tax expense	—			30			—			46
Net loss on cash flow hedge derivatives	(1		)	(104		)	(3,985		)	(434		)
Net amount reclassified from AOCI to net loss (interest expense)	(2		)	308			—			674
Net reclassified from AOCI to net loss (foreign exchange gain (loss))	(1,760		)	—			(492		)	—
Balance at end of period, net of tax	(5,643		)	(1,182		)	(5,643		)	(1,182		)

Accumulated other comprehensive loss	$	(16,977	)	$	(5,189	)	$	(16,977	)	$	(5,189	)


(1)	Amounts reclassified from AOCI for pension liabilities are recorded in selling, general, and administrative expenses in the condensed consolidated statements of operations.