Certain Balance Sheet Components

3 Months Ended

Mar. 31, 2023

Balance Sheet Related Disclosures [Abstract]

Certain Balance Sheet Components

Certain Balance Sheet Components

A summary of accounts receivable from contracts with customers is as follows:

Accounts receivable, net
In thousands	March 31, 2023		December 31, 2022
Trade receivables (net of allowance of $4,782 and $4,863)	$	259,587	$	249,771
Unbilled receivables	45,688		30,664
Total accounts receivable, net	$	305,275	$	280,435

Allowance for credit losses account activity	Three Months Ended March 31,
In thousands	2023		2022
Beginning balance	$	4,863	$	5,730
Provision for (release of) doubtful accounts, net	(91)		(101)
Accounts recovered (written-off), net	(66)		78
Effect of change in exchange rates	76		(109)
Ending balance	$	4,782	$	5,598

Inventories
In thousands	March 31, 2023		December 31, 2022
Raw materials	$	215,203	$	182,118
Work in process	9,239		8,386
Finished goods	40,680		38,197
Total inventories	$	265,122	$	228,701

Property, plant, and equipment, net
In thousands	March 31, 2023		December 31, 2022
Machinery and equipment	$	312,339	$	306,699
Computers and software	120,498		119,670
Buildings, furniture, and improvements	130,957		130,301
Land	8,668		8,566
Construction in progress, including purchased equipment	18,232		19,403
Total cost	590,694		584,639
Accumulated depreciation	(454,297)		(444,516)
Property, plant, and equipment, net	$	136,397	$	140,123

Depreciation expense	Three Months Ended March 31,
In thousands	2023		2022
Depreciation expense	$	9,415	$	10,284