Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001673985 (http://www.sec.gov/CIK)

Inventory Disclosure [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]	December 31,     2016   2015           Raw materials   $ 68,900     $ 75,666   Work in progress     47,759       56,025   Finished goods     19,069       35,508   Spares and other     23,129       21,528         158,857       188,727   Reduction to LIFO cost basis     (29,879 )     (38,496 ) Total inventories   $ 128,978     $ 150,231