XML 58 R45.htm IDEA: XBRL DOCUMENT v3.5.0.2
Retirement Plans - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2016
Sep. 30, 2016
Sep. 27, 2015
Dec. 31, 2015
Retirement Plans        
Defined Benefit Plan Disclosure [Line Items]        
Net pension plan obligation $ 182.6 $ 182.6    
Assumptions used calculating net periodic benefit cost, expected long-term return on assets (as a percent)   7.00%   8.00%
Incremental costs due to change in assumption $ 1.4 $ 4.2    
SERP        
Defined Benefit Plan Disclosure [Line Items]        
Contributions to plan   $ 4.2 $ 6.5