The following tables present the changes in Accumulated Other Comprehensive Loss by Component for the three and six month periods ended June 30, 2017 and 2016, respectively.



	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 income (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, March 31, 2016	(24,788	)	71		(482,220	)	(506,937	)
Other comprehensive (loss) income before reclassifications	(20,641	)	(312	)	—		(20,953	)
Foreign currency translation effect	—		—		5,234		5,234
Income tax effect	—		102		—		102
Amount reclassified from accumulated other comprehensive income (loss)
Cash flow hedges	—		17		—		17
Amortization of prior service credit	—		—		(142	)	(142	)
Amortization of actuarial losses	—		—		10,937		10,937
Income tax effect	—		(12	)	(3,854	)	(3,866	)
Other comprehensive (loss) income	(20,641	)	(205	)	12,175		(8,671	)
Ending balance, June 30, 2016	(45,429	)	(134	)	(470,045	)	(515,608	)



	Cumulative Translation Adjustment		Derivative Instruments		Post- retirement Benefits		Total
Beginning balance, December 31, 2016	(75,415	)	1,967		(471,703	)	(545,151	)
Other comprehensive (loss) income 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 income (loss)
Cash flow hedges	—		(353	)	—		(353	)
Amortization of prior service credit	—		—		(283	)	(283	)
Amortization of actuarial losses	—		—		21,222		21,222
Income tax effect	—		203		(7,444	)	(7,241	)
Other comprehensive (loss) income	25,393		(1,966	)	8,928		32,355
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, 2015	(22,034	)	3,454		(491,187	)	(509,767	)
Other comprehensive (loss) income before reclassifications	(23,395	)	(4,356	)	—		(27,751	)
Foreign currency translation effect	—		—		7,263		7,263
Income tax effect	—		1,659		—		1,659
Amount reclassified from accumulated other comprehensive income (loss)
Cash flow hedges	—		(1,395	)	—		(1,395	)
Amortization of prior service credit	—		—		(283	)	(283	)
Amortization of actuarial losses	—		—		21,869		21,869
Income tax effect	—		504		(7,707	)	(7,203	)
Other comprehensive (loss) income	(23,395	)	(3,588	)	21,142		(5,841	)
Ending balance, June 30, 2016	(45,429	)	(134	)	(470,045	)	(515,608	)