Accumulated Other Comprehensive Income ("AOCI") (Tables)

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Summary of Total Changes in AOCI by Component, Net of Tax

The following tables set forth the total changes in AOCI by component, net of tax:

	Three Months Ended March 31, 2021									Three Months Ended March 31, 2020
	Unrecognized pension benefit cost			Currency Translation Adjustment			Total			Unrecognized pension benefit cost			Currency Translation Adjustment			Total
Balance at January 1	$	(6,704	)	$	(47,847	)	$	(54,551	)	$	(5,671	)	$	(51,682	)	$	(57,353	)
Other comprehensive loss before    reclassifications:
Loss on foreign currency    translation adjustment		0			(4,829	)		(4,829	)		0			(16,881	)		(16,881	)
Amounts reclassified from AOCI:
Amortization of defined benefit    pension actuarial gain (a)		114			0			114			98			0			98
Net current period other    comprehensive income (loss)		114			(4,829	)		(4,715	)		98			(16,881	)		(16,783	)
Balance at March 31	$	(6,590	)	$	(52,676	)	$	(59,266	)	$	(5,573	)	$	(68,563	)	$	(74,136	)

(a) This AOCI component is included in the computation of net periodic pension costs.