Restructuring Charges (Tables)

6 Months Ended

Jun. 30, 2020

Restructuring Charges

Schedule of changes to accrued liability balance related to restructuring charges

The following table presents the changes to our accrued liability balance related to restructuring charges during the six months ended June 30, 2020 (in thousands):

Balance at December 31, 2019	$	—
Severance costs		3,974
Non-cash expense		162
Payments		(2,885)
Balance at June 30, 2020	$	1,251

Schedule of restructuring charges by segment

The following table presents, by segment, the restructuring charges incurred during the three and six months ended June 30, 2020 (in thousands):

	Contract		Aftermarket
	Operations		Services		Other (1)		Total
Three months ended June 30, 2020	$	1,386	$	286	$	736	$	2,408
Six months ended June 30, 2020		1,864		911		1,361		4,136

(1) Represents expense incurred within our corporate function and not directly attributable to our segments.