Inventories, Net (Tables)

12 Months Ended

Dec. 31, 2019

The components of inventories, net of allowances, are as follows (in thousands):



	December 31,
	2019		2018
Finished goods	$	85,700	$	76,981
Work in process	10,614		13,870
Raw materials and supplies	73,733		82,794
Inventories, net	$	170,047	$	173,645

Summary Of Allowance For Excess And Obsolete Inventory

The activity in the allowance for excess, obsolete, and net realizable value inventory account for the two years ended December 31, 2019 and 2018, was as follows (in thousands):



	Years Ended December 31,
	2019			2018
Balance at beginning of year	$	46,505		$	34,402
Provision	28,593			27,341
Charges processed	(26,509		)	(15,238		)
Balance at end of year	$	48,589		$	46,505