Inventories

6 Months Ended

Jun. 25, 2017

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

Inventories

	June 25, 2017		December 31, 2016
(Dollars in thousands)
Raw materials	$	62,168	$	40,255
Work in process	47,724		21,447
Finished goods	62,731		21,135
Inventories	$	172,623	$	82,837

Service wheel and supplies inventory included in other non-current assets in the condensed consolidated balance sheets totaled $7.7 million and $6.5 million at June 25, 2017 and December 31, 2016, respectively. Included in raw materials were operating supplies and spare parts totaling $14.3 million and $10.3 million on June 25, 2017 and December 31, 2016, respectively. Included within inventory is $81.7 million from European operations.