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Leases - Future Minimum Payments (Details) - USD ($) $ in Millions | Jan. 01, 2020 | Dec. 31, 2019
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Lessee, Operating Lease, Liability, Payment, Due [Abstract] |  |
Next 12 months |  | $ 8.7
12 to 24 months |  | 5.6
24 to 36 months |  | 4.6
36 to 48 months |  | 4.3
48 to 60 months |  | 3.9
Thereafter |  | 1.5
Total lease payments |  | 28.6
Less imputed interest |  | 3.1
Net lease liability |  | 25.5
Finance Lease, Liability, Payment, Due [Abstract] |  |
Next 12 months |  | 1.0
12 to 24 months |  | 0.8
24 to 36 months |  | 0.5
36 to 48 months |  | 0.3
48 to 60 months |  | 0.1
Thereafter |  | 0.1
Total lease payments |  | 2.8
Less imputed interest |  | 0.1
Capital lease obligations |  | 2.7
Next 12 months |  | 9.7
12 to 24 months |  | 6.4
24 to 36 months |  | 5.1
36 to 48 months |  | 4.6
48 to 60 months |  | 4.0
Thereafter |  | 1.6
Total lease payments |  | 31.4
Less imputed interest |  | 3.2
Total |  | 28.2
Lessee, Lease, Description [Line Items] |  |
Payments due on leases executed after period end |  | $ 28.6
Subsequent Event |  |
Lessee, Operating Lease, Liability, Payment, Due [Abstract] |  |
Total lease payments | $ 17.8 |
Lessee, Lease, Description [Line Items] |  |
Payments due on leases executed after period end | $ 17.8 |

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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest statement of financial position date. For interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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