Pension and Other Post-Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

ABX’s net periodic benefit costs for its defined benefit pension plans and post-retirement healthcare plans for both continuing and discontinued operations are as follows (in thousands):

	Three Months Ended September 30,								Nine Months Ended September 30,
	Pension Plans				Post-Retirement Healthcare Plan				Pension Plans				Post-Retirement Healthcare Plan
	2021		2020		2021		2020		2021		2020		2021		2020
Service cost	$	—	$	—	$	24	$	35	—		—		72		104
Interest cost	5,597		6,970		10		23		16,791		20,910		30		68
Expected return on plan assets	(11,875)		(11,168)		—		—		(35,625)		(33,504)		—		—
Amortization of net loss	1,764		941		47		31		5,292		2,823		141		93
Net periodic benefit cost (income) loss	$	(4,514)	$	(3,257)	$	81	$	89	$	(13,542)	$	(9,771)	$	243	$	265