The activity in AOCI for the three and nine months ended September 30, 2018 and 2017 is as follows:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017
	(In thousands)						(In thousands)
Pension and other postretirement benefits:
Balance at beginning of period, net of tax	$	(6,129	)	$	(11,652	)	$	(7,126	)	$	(12,880	)
Gain arising during the period	614			434			1,592			1,556
Less: Tax expense	—			—			—			—
Net gain arising during the period	614			434			1,592			1,556
Amortization of prior service cost ⁽¹⁾	4			53			23			159
Less: Tax expense	—			—			—			—
Net amount reclassified from AOCI to net income/loss	4			53			23			159
Other comprehensive income, net of tax	618			487			1,615			1,715
Balance at end of period, net of tax	(5,511		)	(11,165		)	(5,511		)	(11,165		)
Foreign currency translation adjustments:
Balance at beginning of period, net of tax	2,122			7,504			8,318			3,874
(Loss) gain on foreign currency translation	(2,953		)	709			(9,149		)	4,339
Less: Tax expense/(Tax benefit)	—			—			—			—
Net (loss)/gain on foreign currency translation	(2,953		)	709			(9,149		)	4,339
Balance at end of period, net of tax	(831		)	8,213			(831		)	8,213
Cash flow hedge derivatives:
Balance at beginning of period, net of tax	(1,182		)	(1,682		)	(1,422		)	(1,538		)
Unrealized loss on cash flow hedge derivatives	(76		)	(112		)	(464		)	(1,074		)
Less: Tax expense/(Tax benefit)	128			88			173			22
Net loss on cash flow hedge derivatives	(204		)	(200		)	(637		)	(1,096		)
Net amount reclassified from AOCI to net income/loss (interest expense)	286			405			959			1,157
Balance at end of period, net of tax	(1,100		)	(1,477		)	(1,100		)	(1,477		)

Accumulated other comprehensive loss	$	(7,442	)	$	(4,429	)	$	(7,442	)	$	(4,429	)


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