Debt - Capital Leases (Details) - USD ($) $ in Millions |
Dec. 31, 2017 |
Dec. 31, 2016 |
---|---|---|
Debt Instrument [Line Items] | ||
Capital Leases | $ 179.4 | $ 135.2 |
Less: accumulated amortization | (76.4) | (63.5) |
Total | 103.0 | 71.7 |
Buildings | ||
Debt Instrument [Line Items] | ||
Capital Leases | 2.2 | 2.0 |
Vehicles | ||
Debt Instrument [Line Items] | ||
Capital Leases | 175.7 | 131.8 |
Machinery and equipment | ||
Debt Instrument [Line Items] | ||
Capital Leases | $ 1.5 | $ 1.4 |