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Employee Incentive Plans, Short Term Incentive Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award | 1,543 | 16,645 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 15,102 |  |
Fabricated Products |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |
Deferred Compensation Arrangement with Individual, Compensation Expense | $ 0.2 | $ 0.1 | $ 0.2
All Other |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |
Deferred Compensation Arrangement with Individual, Compensation Expense | 0.7 | $ 0.3 | $ 0.7
Short Term Incentive Plans |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |
Accrued Bonuses | $ 24.4 |  |

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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