Workers Compensation Expense (Tables)

6 Months Ended

Jun. 30, 2020

Workers Compensation Expense

Workers' compensation expense

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
	(In thousands)
Self-insured occupational disease benefits:
Service cost	$	1,891	$	1,669	$	3,782	$	3,338
Interest cost(1)		1,399		1,354		2,798		2,708
Net amortization(1)		298		—		595		—
Total occupational disease	$	3,588	$	3,023	$	7,175	$	6,046
Traumatic injury claims and assessments		2,100		2,410		4,282		4,554
Total workers’ compensation expense	$	5,688	$	5,433	$	11,457	$	10,600

(1) In accordance with the adoption of ASU 2017-07, “Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,” these costs are recorded within Nonoperating expenses in the Condensed Consolidated Statement of Operations on the line item “Non-service related pension and postretirement benefit costs.”