Inventories, Net (Tables)

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

A summary of Inventories, net is as follows:

	March 31, 2020			December 31, 2019
Finished products	$	47,502		$	48,484
In-process	35,790			30,913
Raw materials	46,958			46,440
Fine and fabricated precious metal in various stages of completion	25,393			29,202
	155,643			155,039
LIFO reserve	(2,555		)	(3,398		)
Total	$	153,088		$	151,641

Inventory Supplemental Disclosure

	March 31, 2020		December 31, 2019
Supplemental inventory information:
Precious metals stated at LIFO cost	$	4,954	$	15,660
Precious metals stated under non-LIFO cost methods, primarily at fair value	$	17,884	$	10,144
Market value per ounce:
Silver	$	14.52	$	17.86
Gold	$	1,621.58	$	1,522.14
Palladium	$	2,283.75	$	1,935.19