Inventory (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Major Classes of Inventory

	June 30,		December 31,
(in thousands)	2018		2017
Raw materials and starting stock	$	9,929	$	8,527
Semi-finished and finished steel products		106,584		99,820
Operating materials		11,812		10,850
Gross inventory		128,325		119,197
Inventory reserves		(2,710)		(2,534)
Total inventory, net	$	125,615	$	116,663