Other Comprehensive (Income) Loss (Tables)

6 Months Ended

Jun. 30, 2021

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		Pension and post-retirement benefits plans		Derivative instruments		Accumulated other comprehensive loss
Balance - December 31, 2020	$	(19,024)	$	(27,423)	$	1,441	$	(45,006)
Net current period change	(584)		—		—		(584)
Amortization of actuarial gain (loss)	—		673		—		673
Derivative instruments	—		—		(503)		(503)
Balance - June 30, 2021	$	(19,608)	$	(26,750)	$	938	$	(45,420)

	Foreign currency translation adjustment		Pension and post-retirement benefit plans		Derivative instruments		Accumulated other comprehensive loss
Balance - December 31, 2019	$	(24,032)	$	(22,382)	$	464	$	(45,950)
Net current period change	(2,885)		—		—		(2,885)
Amortization of actuarial gain (loss)	—		(893)		—		(893)
Derivative instruments	—		—		(1,674)		(1,674)
Balance - June 30, 2020	$	(26,917)	$	(23,275)	$	(1,210)	$	(51,402)

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

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

	Three Months Ended June 30, 2021						Six Months Ended June 30, 2021
	Before Tax Amount		Tax Expense		After Tax Amount		Before Tax Amount		Tax Expense		After Tax Amount
Cumulative translation adjustment	$	1,488	$	—	$	1,488	$	(584)	$	—	$	(584)
Amortization of actuarial gain (loss)	654		(267)		387		1,053		(380)		673
Derivative instruments	(100)		23		(77)		(656)		153		(503)
Total other comprehensive loss	$	2,042	$	(244)	$	1,798	$	(187)	$	(227)	$	(414)

	Three Months Ended June 30, 2020						Six Months Ended June 30, 2020
	Before Tax Amount		Tax Expense		After Tax  Amount		Before Tax Amount		Tax Expense		After Tax  Amount
Cumulative translation adjustment	$	1,920	$	—	$	1,920	$	(2,885)	$	—	$	(2,885)
Amortization of actuarial gain (loss)	(551)		105		(446)		(1,105)		212		(893)
Derivative instruments	1,443		(339)		1,104		(2,045)		371		(1,674)
Total other comprehensive loss	$	2,812	$	(234)	$	2,578	$	(6,035)	$	583	$	(5,452)