Revenue (Summary of Disaggregation of Revenue by Geographical Area) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | $ 432.2 | $ 350.9 | $ 837.9 | $ 694.7 |
Supply Technologies Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 166.2 | 142.4 | 327.1 | 275.6 |
Assembly Components Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 153.2 | 126 | 298.6 | 265.3 |
Engineered Products Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 112.8 | 82.5 | 212.2 | 153.8 |
United States | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 285.9 | 225.5 | 544.5 | 453.6 |
United States | Supply Technologies Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 110.5 | 100.4 | 213.8 | 191.4 |
United States | Assembly Components Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 109.3 | 90.7 | 211.1 | 194.2 |
United States | Engineered Products Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 66.1 | 34.4 | 119.6 | 68 |
Europe | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 47.1 | 35.6 | 93.1 | 69.1 |
Europe | Supply Technologies Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 25.6 | 15.9 | 51.6 | 30.7 |
Europe | Assembly Components Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 1.2 | 0.9 | 2.4 | 1.9 |
Europe | Engineered Products Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 20.3 | 18.8 | 39.1 | 36.5 |
Asia | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 36.8 | 31.5 | 70.2 | 59.3 |
Asia | Supply Technologies Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 13.2 | 10.1 | 27.1 | 20.7 |
Asia | Assembly Components Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 8.7 | 6.9 | 16.5 | 14.2 |
Asia | Engineered Products Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 14.9 | 14.5 | 26.6 | 24.4 |
Mexico | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 25.1 | 29 | 55.8 | 53.2 |
Mexico | Supply Technologies Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 13.5 | 13 | 27.7 | 26.1 |
Mexico | Assembly Components Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 8.1 | 7.6 | 16.6 | 15.3 |
Mexico | Engineered Products Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 3.5 | 8.4 | 11.5 | 11.8 |
Canada | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 34.7 | 26.3 | 69 | 54 |
Canada | Supply Technologies Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 3.4 | 2.8 | 6.8 | 5.9 |
Canada | Assembly Components Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 25.6 | 19.5 | 51.3 | 38.9 |
Canada | Engineered Products Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 5.7 | 4 | 10.9 | 9.2 |
Other | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 2.6 | 3 | 5.3 | 5.5 |
Other | Supply Technologies Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 0 | 0.2 | 0.1 | 0.8 |
Other | Assembly Components Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | 0.3 | 0.4 | 0.7 | 0.8 |
Other | Engineered Products Segment | | | | |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | | | | |
Total revenues | $ 2.3 | $ 2.4 | $ 4.5 | $ 3.9 |