Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2019

Equity [Abstract]

After-tax Changes in Accumulated Other Comprehensive Loss

The after-tax changes in accumulated other comprehensive loss are as follows:

	Foreign currency translation adjustment			Derivative instruments		Pension and post-retirement benefits plans			Accumulated other comprehensive loss
Ending balance, December 31, 2018	$	(22,847	)	496		$	(25,120	)	$	(47,471	)
Net current period change	338			—		—			338
Derivative instruments	—			322		—			322
Amortization of actuarial losses	—			—		1,089			1,089
Ending balance, June 30, 2019	$	(22,509	)	$	818	$	(24,031	)	$	(45,722	)

	Foreign currency translation adjustment			Derivative instruments		Pension and post-retirement benefit plans			Accumulated other comprehensive loss
Ending balance, December 31, 2017	$	(17,172	)	$	—	$	(24,063	)	$	(41,235	)
Net current period change	(3,834		)	—		—			(3,834		)
Derivative instruments	—			—		—			—
Amortization of actuarial losses	—			—		(932		)	(932		)
Ending balance, June 30, 2018	$	(21,006	)	$	—	$	(24,995	)	$	(46,001	)

Related Tax Effects Allocated to Each Component of Accumulated Other Comprehensive Loss

The related tax effects allocated to each component of other comprehensive (loss) income are as follows:

	Three Months Ended									Six Months Ended
	June 30, 2019									June 30, 2019
	Before Tax Amount			Tax Expense			After Tax Amount			Before Tax Amount		Tax Expense			After Tax Amount
Amortization of actuarial losses	$	2,613		$	(874	)	$	1,739		$	1,808	$	(719	)	$	1,089
Derivative instruments	(17		)	—			(17		)	322		—			322
Cumulative translation adjustment	233			—			233			338		—			338
Total other comprehensive income (loss)	$	2,829		$	(874	)	$	1,955		$	2,468	$	(719	)	$	1,749

	Three Months Ended								Six Months Ended
	June 30, 2018								June 30, 2018
	Before Tax Amount			Tax Expense		After Tax  Amount			Before Tax Amount			Tax Expense		After Tax  Amount
Amortization of actuarial losses	$	(763	)	$	170	$	(593	)	$	(1,270	)	$	338	$	(932	)
Cumulative translation adjustment	(5,304		)	—		(5,304		)	(3,834		)	—		(3,834		)
Total other comprehensive (loss) income	$	(6,067	)	$	170	$	(5,897	)	$	(5,104	)	$	338	$	(4,766	)