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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Components of Inventory
Inventories, net consisted of the following:
 December 31,
 202120202019
 (Amounts in thousands)
Raw materials$318,348 $321,600 328,080 
Work in process242,143 210,174 192,993 
Finished goods213,096 221,532 218,408 
Less: Excess and obsolete reserve(95,300)(86,078)(78,644)
Inventories, net$678,287 $667,228 $660,837