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Long-lived Tangible Assets
 6 Months Ended
Jun. 30, 2023
Segment Reporting [Abstract]  
Long-lived Tangible Assets Long-lived Tangible Assets
Long-lived tangible assets by geographic area, which include property, plant, and equipment, net and operating lease right-of-use assets, were as follows:
(In thousands)June 30, 2023December 31, 2022
United States$15,510 $16,427 
People's Republic of China37,648 42,893 
Mexico13,023 14,402 
Vietnam7,758 6,923 
All other countries4,609 3,745 
Total long-lived tangible assets$78,548 $84,390 

Property, plant, and equipment are shown net of accumulated depreciation of $170.0 million and $170.5 million at June 30, 2023 and December 31, 2022, respectively.
Depreciation expense was $4.8 million and $5.1 million for the three months ended June 30, 2023 and 2022, respectively. Depreciation expense was $9.4 million and $10.2 million for the six months ended June 30, 2023 and 2022, respectively.