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Employee Benefits, Net Periodic Benefit Costs and Charges Relating To All Other Employee Benefit Plans(Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Salaried VEBA1: |  |  |  |
Total net periodic postretirement benefit cost relating to Salaried VEBA | $ 1.2 | $ 0.8 | $ 3.4 | $ 2.5
Gain on removal of Union VEBA net assets | 0.5 | 0.0 | (0.8) | (0.1)
Total other employee benefit plans | 4.7 | 4.2 | 14.9 | 14.1
Fabricated Products |  |  |  |
Salaried VEBA1: |  |  |  |
Deferred compensation plan | 0.1 | 0.1 | 0.3 | 0.2
Defined contribution plans | 1.3 | 1.6 | 6.8 | 6.7
Multiemployer pension plans | 1.1 | 1.2 | 3.4 | 3.5
Total other employee benefit plans | 2.5 | 2.9 | 10.5 | 10.4
All Other |  |  |  |
Salaried VEBA1: |  |  |  |
Deferred compensation plan | 0.4 | 0.4 | 1.1 | 0.6
Defined contribution plans | 0.1 | 0.1 | 0.7 | 0.7
Total other employee benefit plans | 2.2 | 1.3 | 4.4 | 3.7
VEBAs | All Other |  |  |  |
Salaried VEBA1: |  |  |  |
Total net periodic postretirement benefit cost relating to Salaried VEBA | 1.2 | 0.8 | 3.4 | 2.5
Gain on removal of Union VEBA net assets | 0.5 | 0.0 | (0.8) | (0.1)
Voluntary Employees' beneficiary Association (VEBA) | VEBAs | All Other |  |  |  |
Salaried VEBA1: |  |  |  |
Interest cost | 0.8 | 0.7 | 2.3 | 2.2
Expected return on plan assets | (1.0) | (1.0) | (3.1) | (3.0)
Amortization of prior service cost | 1.2 | 1.0 | 3.6 | 3.0
Amortization of net actuarial loss | 0.2 | 0.1 | 0.6 | 0.3
Total net periodic postretirement benefit cost relating to Salaried VEBA | $ 1.2 | $ 0.8 | $ 3.4 | $ 2.5

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- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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