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Basis of Presentation and Nature of Operations - Summary of Impact from the Aerospace and Defense Segment Net Sales (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Change in Accounting Estimate [Line Items]    
Favorable effect of the changes in contract estimates on net income $ 5.9 $ 5.1
Favorable effect of the changes in contract estimates on basic net income per share (in USD per share) $ 0.08 $ 0.08
Contracts Accounted for under Percentage-of-Completion    
Change in Accounting Estimate [Line Items]    
Favorable effect of the changes in contract estimates on income before income taxes $ 3.4 $ 0.0
Favorable effect of the changes in contract estimates on net income $ 2.0 $ 0.0
Favorable effect of the changes in contract estimates on basic net income per share (in USD per share) $ 0.03 $ 0.00