Supplemental Financial Information (Tables)

3 Months Ended

Mar. 31, 2021

Supplemental Income Statement Elements [Abstract]

Schedule of Restructuring and Impairment Charges

The components of “Restructuring and impairment charges” line item in the condensed consolidated statements of operations, which contains restructuring charges and related expenses, as well as impairment charges, were as follows:

	Three Months Ended
(Dollars in thousands)	March 31, 2021		March 31, 2020
Restructuring charges
Manufacturing footprint optimization	1,506		—
Total restructuring charges	1,506		—
Total restructuring and impairment charges	$	1,506	$	—

Schedule of Severance Activity

Severance and related benefits activity related to the manufacturing footprint optimization plan is presented in the table below for the three months ended March 31, 2021:

(Dollars in thousands)	Manufacturing Footprint Optimization Restructuring Severance
Balance as of December 31, 2020	$	11,003
Provisions	508
Payments	(779)
Foreign currency translation adjustment	(438)
Balance as of March 31, 2021	$	10,294

Schedule of Other Operating (Income) Expense

The components of “Other operating (income) expense, net” line item in the condensed consolidated statements of operations, were as follows:

	Three Months Ended
(Dollars in thousands)	March 31, 2021		March 31, 2020
UTIS fire
Fixed assets write-offs	891		—
Inventory charges	280		—
Professional services	522		—
Lease obligations	486		—
Compensation & benefits	244		—
Insurance recoveries	(1,119)		—
Total UTIS fire	1,304		—
(Gain) loss on sale or disposal of property, plant and equipment	(89)		20
Total other operating (income) expense, net	$	1,215	$	20

Interest Income and Interest Expense Disclosure

The components of “Interest expense, net” line item in the condensed consolidated statements of operations, were as follows:

	Three Months Ended
(Dollars in thousands)	March 31, 2021		March 31, 2020
Interest on revolving credit facility	$	101	$	1,079
Interest rate swap settlements	—		86
Line of credit fees	273		166
Debt issuance amortization costs	179		138
Interest on finance leases	212		33
Interest income	(195)		(320)
Other	38		25
Total interest expense, net	$	608	$	1,207