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Certain Balance Sheet Components | 3 Months Ended
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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 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI https://asc.fasb.org/topic&trid=2122208 + Details
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