Accumulated Other Comprehensive Income (Loss)

9 Months Ended

12 Months Ended

Sep. 30, 2018

Dec. 31, 2017

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Income (Loss)

NOTE 9 — ACCUMULATED OTHER COMPREHENSIVE LOSS

Accumulated other comprehensive loss consisted of the following:


(in thousands)	Foreign Currency Translation			Defined Pension and Other Post-Retirement Benefits			Accumulated Other Comprehensive Loss
December 31, 2017	$	(21,935	)	$	(4,480	)	$	(26,415	)
Reclassification adjustment for cumulative effect of change in accounting principle		—			(1,315	)		(1,315	)
Net transfer from Dover Corporation		—			(2,421	)		(2,421	)
Other comprehensive income (loss) before reclassifications, net of tax		(9,080	)		170			(8,910	)
Reclassification adjustment for net losses (gains) included in net income, net of tax		—			534			534

Other comprehensive income (loss), net of tax		(9,080	)		704			(8,376	)

September 30, 2018	$	(31,015	)	$	(7,512	)	$	(38,527	)

Reclassification adjustments from accumulated other comprehensive loss to net income related to defined pension and other post-retirement benefits consisted of the following:


	Three Months Ended September 30,						Nine Months Ended September 30,						Affected line items on the condensed consolidated statements of income
(in thousands)	2018			2017			2018			2017
Amortization of actuarial loss ⁽¹⁾	$	116		$	100		$	243		$	299		Other expense, net
Settlement loss ⁽¹⁾		484			—			484			—		Selling, general and administrative expense

Total before tax		600			100			727			299		Income before income taxes
Tax benefit		(161	)		(35	)		(192	)		(102	)	Provision for income taxes

	$439			$65			$535			$197			Net income

(1)	These accumulated comprehensive loss components are included in the computation of net periodic benefit cost (See Note16—Employee Benefit Plans for additional information).

15. Other Comprehensive Income (Loss)

The amounts recognized in Other comprehensive income (loss) were as follows:


Year Ended December 31, 2017	Pre-tax			Tax			Net of tax
Foreign currency translation adjustments	$	4,358		$	—		$	4,358
Pension and other post-retirement benefit plans		3,827			(971	)		2,856

Total other comprehensive income (loss)	$	8,185		$	(971	)	$	7,214


Year Ended December 31, 2016	Pre-tax			Tax			Net of tax
Foreign currency translation adjustments	$	953		$	—		$	953
Pension and other post-retirement benefit plans		154			(42	)		112

Total other comprehensive income (loss)	$	1,107		$	(42	)	$	1,065


Year Ended December 31, 2015	Pre-tax			Tax			Net of tax
Foreign currency translation adjustments	$	(11,691	)	$	—		$	(11,691	)
Pension and other post-retirement benefit plans		(393	)		124			(269	)

Total other comprehensive (loss) income	$	(12,084	)	$	124		$	(11,960	)

The components of Accumulated other comprehensive (loss) income are as follows:


	December 31, 2017			December 31, 2016
Cumulative foreign currency translation adjustments	$	(21,935	)	$	(26,293	)
Pension and other post-retirement benefit plans		(4,480	)		(7,336	)

	$	(26,415	)	$	(33,629	)

Total Comprehensive income (loss) were as follows:


	Years Ended December 31,
	2017		2016			2015
Net income (loss) attributable to Apergy	$	110,638	$	(12,642	)	$	51,698
Other comprehensive income (loss)		7,214		1,065			(11,960	)

Comprehensive income (loss)	$	117,852	$	(11,577	)	$	39,738

Amounts reclassified from Accumulated other comprehensive income (loss) to income (loss) during the year ended December 31, 2017, 2016 and 2015 were as follows:


	Years Ended December 31,
	2017			2016			2015
Pension and other post-retirement benefit plans:
Amortization of actuarial losses and net transition obligation	$	397		$	362		$	340
Amortization of prior service costs		2			2			2

Total before tax		399			364			342
Tax benefit		(141	)		(129	)		(120	)

Net of tax	$	258		$	235		$	222

The Company recognizes net periodic benefit cost, which includes amortization of net actuarial losses and prior service costs, in both Selling, general and administrative expenses and Cost of goods and services in the Combined Statements of Income, depending on the functional area of the underlying employees included in the plans.