INVENTORIES

3 Months Ended

Mar. 31, 2021

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

INVENTORIES

Inventories consisted of the following (amounts in thousands):

	March 31, 2021		December 31, 2020
Raw material	$	93,566	$	78,733
Work-in-process	40,174		36,485
Finished goods	179,732		178,461
	$	313,472	$	293,679

Inventories are valued at the lower of cost or net realizable value. Net realizable value is estimated based on current selling prices. Inventory costs are calculated using the first-in, first-out (FIFO) method or average cost method. Estimated provisions are established for slow-moving and obsolete inventory.