Rendering

Component: (Network and Table)
Network
1100 - Disclosure - Income Taxes - Income Tax Provision (Benefit) (Detail)
(http://www.ampcopittsburgh.com/taxonomy/role/DisclosureIncomeTaxesIncomeTaxProvisionBenefit)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000006176 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Income Tax Disclosure [Abstract]
 
 
 
Current:
 
 
 
Federal
(1,574,000) 
4,577,000  
3,458,000  
State
465,000  
378,000  
210,000  
Foreign
414,000  
(20,000) 
122,000  
Total current income tax expense
(695,000) 
 
4,935,000  
 
3,790,000  
 
Deferred:
 
 
 
Federal
(2,688,000) 
(2,203,000) 
(4,678,000) 
State
(1,838,000) 
197,000  
54,000  
Foreign
(2,472,000) 
(296,000) 
101,000  
Increase (reversal) of valuation allowance
30,405,000  
0  
(33,000) 
Deferred income tax expense benefit
23,407,000  
 
(2,302,000) 
 
(4,556,000) 
 
Total provision (benefit) for taxes on income
22,712,000  
 
2,633,000  
 
(766,000)