Rendering

Component: (Network and Table)
Network
1060 - Disclosure - Inventories - Schedule of Inventories (Detail)
(http://www.ampcopittsburgh.com/taxonomy/role/DisclosureInventoriesScheduleOfInventories)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000006176 (http://www.sec.gov/CIK)
Inventory Disclosure [Abstract]Period [Axis]
2016-12-31
2015-12-31
Inventory Disclosure [Abstract]
 
 
Raw materials
23,964,000  
18,314,000  
Work-in-progress
29,198,000  
21,583,000  
Finished goods
20,046,000  
9,897,000  
Supplies
10,371,000  
9,940,000  
Inventories
83,579,000  
 
59,734,000