The following tables present the changes in Accumulated Other Comprehensive Loss by Component for the three month periods ended June 30, 2018 and 2017, respectively.



	Cumulative Translation Adjustment			Derivative Instruments			Post-retirement Benefits			Total
Beginning balance, March 31, 2018	$	(19,015	)	$	1,901		$	(434,788	)	$	(451,902	)
Other comprehensive income (loss) before reclassifications	(30,768		)	2,062			—			(28,706		)
Foreign currency translation effect	—			—			4,082			4,082
Income tax effect	—			(285		)	—			(285		)
Amount reclassified from accumulated other comprehensive loss
Cash flow hedges	—			(1,592		)	—			(1,592		)
Amortization of prior service credit	—			—			(135		)	(135		)
Amortization of actuarial losses	—			—			9,320			9,320
Income tax effect	—			126			(2,206		)	(2,080		)
Other comprehensive income (loss)	(30,768		)	311			11,061			(19,396		)
Ending balance, June 30, 2018	$	(49,783	)	$	2,212		$	(423,727	)	$	(471,298	)



	Cumulative Translation Adjustment			Derivative Instruments			Post-retirement Benefits			Total
Beginning balance, March 31, 2017	$	(62,898	)	$	1,721		$	(465,837	)	$	(527,014	)
Other comprehensive income (loss) before reclassifications	12,876			(2,335		)	—			10,541
Foreign currency translation effect	—			—			(3,702		)	(3,702		)
Income tax effect	—			759			—			759
Amount reclassified from accumulated other comprehensive loss
Cash flow hedges	—			(343		)	—			(343		)
Amortization of prior service credit	—			—			(142		)	(142		)
Amortization of actuarial losses	—			—			10,631			10,631
Income tax effect	—			199			(3,725		)	(3,526		)
Other comprehensive income (loss)	12,876			(1,720		)	3,062			14,218
Ending balance, June 30, 2017	$	(50,022	)	$	1		$	(462,775	)	$	(512,796	)




	Cumulative Translation Adjustment		Derivative Instruments		Post- retirement Benefits		Total
Beginning balance, December 31, 2017	(39,940	)	349		(438,887	)	(478,478	)
Other comprehensive income (loss) before reclassifications	(9,843	)	2,708		—		(7,135	)
Foreign currency translation effect	—		—		1,180		1,180
Income tax effect	—		(701	)	—		(701	)
Amount reclassified from accumulated other comprehensive loss
Cash flow hedges	—		(98	)	—		(98	)
Amortization of prior service credit	—		—		(270	)	(270	)
Amortization of actuarial losses	—		—		18,666		18,666
Pension settlement charge	—		—		—		—
Income tax effect	—		(46	)	(4,416	)	(4,462	)
Other comprehensive income (loss)	(9,843	)	1,863		15,160		7,180
Ending balance, June 30, 2018	(49,783	)	2,212		(423,727	)	(471,298	)




	Cumulative Translation Adjustment		Derivative Instruments		Post- retirement Benefits		Total
Beginning balance, December 31, 2016	(75,415	)	1,967		(471,703	)	(545,151	)
Other comprehensive income (loss) before reclassifications	25,393		(2,724	)	—		22,669
Foreign currency translation effect	—		—		(4,567	)	(4,567	)
Income tax effect	—		908		—		908
Amount reclassified from accumulated other comprehensive loss
Cash flow hedges	—		(353	)	—		(353	)
Amortization of prior service credit	—		—		(283	)	(283	)
Amortization of actuarial losses	—		—		21,222		21,222
Pension settlement charge	—		—		—		—
Income tax effect	—		203		(7,444	)	(7,241	)
Other comprehensive income (loss)	25,393		(1,966	)	8,928		32,355
Ending balance, June 30, 2017	(50,022	)	1		(462,775	)	(512,796	)