Workers' Compensation Expense (Tables)

12 Months Ended

Dec. 31, 2019

Compensation Related Costs [Abstract]

Workers' compensation expense

Workers’ compensation expense consists of the following components:

	Year Ended December 31, 2019		Year Ended December 31, 2018		Year Ended December 31, 2017
(In thousands)
Self-insured occupational disease benefits:
Service cost	$	6,677	$	7,440	$	6,320
Interest cost(1)	4,922		4,365		4,651
Net amortization(1)	—		—		—
Total occupational disease	$	11,599	$	11,805	$	10,971
Traumatic injury claims and assessments	13,050		5,395		3,208
Total workers’ compensation expense	$	24,649	$	17,200	$	14,179

⁽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 Consolidated Income Statements on the line item “Non-service related pension and postretirement benefit costs.”

Schedule of Changes in Occupational Disease Obligations

The table below reconciles changes in the occupational disease liability for the respective period.

(In thousands)	Year Ended December 31, 2019			Year Ended December 31, 2018
Beginning of period	$	118,900		$	122,426
Service cost	6,677			7,440
Interest cost	4,922			4,365
Actuarial (gain) loss	35,993			(7,071		)
Benefit and administrative payments	(8,167		)	(8,260		)
	$	158,325		$	118,900

Schedule of Occupational Disease Obligation Assumptions Used

The following table provides the assumptions used to determine the projected occupational disease obligation:

	Year Ended December 31, 2019	Year Ended December 31, 2018
(Percentages)
Discount rate	3.31	4.26

Workers' compensation liabilities

Summarized below is information about the amounts recognized in the accompanying consolidated balance sheets for workers’ compensation benefits:

	Year Ended December 31, 2019		Year Ended December 31, 2018
(In thousands)
Occupational disease costs	$	158,325	$	118,900
Traumatic and other workers’ compensation claims	73,393		75,447
Total obligations	231,718		194,347
Less amount included in accrued expenses	16,119		20,044
Noncurrent obligations	$	215,599	$	174,303