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Leases (Tables) | 9 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018
Leases [Abstract] |  |
Schedule of Lease Assets and Liabilities | The lease assets and liabilities as of September 30, 2019 are as follows:
|  | September 30,
Leases | Classification | 2019
Assets |  |
Operating lease assets | Operating Lease Assets | $ | 46.2 |
Finance lease assets | Property, Plant and Equipment(a) | 0.3 |
Total leased assets |  | $ | 46.5 |
Liabilities |  |
Current: |  |
Operating | Other Current Liabilities | $ | 16.5 |
Finance | Current Portion of Long-term Debt | 0.2 |
Noncurrent: |  |
Operating | Long-term Operating Lease Liabilities | 29.8 |
Finance | Long-term Debt | 0.1 |
Total lease liabilities |  | $ | 46.6 |
(a) Finance lease assets are recorded net of accumulated amortization of $0.5 million as of September 30, 2019. Other information related to cash paid related to lease liabilities and lease assets obtained for the nine months ended September 30, 2019 was as follows:
| Nine Months Ended
| September 30,
Other Information | 2019
Cash paid for amounts included in the measurement of lease liabilities: |
Operating cash flows from finance leases | $ | — |
Operating cash flows from operating leases | 17.0 |
Financing cash flows from finance leases | 0.2 |
Lease assets obtained in exchange for new finance lease liabilities | 0.1 |
Lease assets obtained in exchange for new operating lease liabilities | 18.7 |
Schedule of Lease Costs and Terms | The lease cost for the three and nine months ended September 30, 2019 and 2018 was as follows:
| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
Lease Cost | 2019 |  | 2018 |  | 2019 |  | 2018
Operating lease cost | $ | 5.3 |  | (a) | $ | 5.3 |  |  | $ | 16.4 |  | (a) | $ | 16.0 |
Finance lease cost(b) | 0.1 |  |  | — |  |  | 0.2 |  |  | — |
Net lease cost | $ | 5.4 |  |  | $ | 5.3 |  |  | $ | 16.6 |  |  | $ | 16.0 |
(a) | Includes short-term lease costs of $0.8 million and $2.2 million for the three and nine months ended September 30, 2019, respectively, and variable lease costs of $0.5 million and $1.8 million for the three and nine months ended September 30, 2019, respectively.
(b) Includes amortization of leased assets and interest on lease liabilities. The lease term and discount rate at September 30, 2019 were as follows:
| September 30,
Lease Term and Discount Rate | 2019
Weighted-average remaining lease term (years): |
Operating leases | 3.7 |
Finance leases | 1.6 |
Weighted-average discount rate: |
Operating leases | 3.6 | %
Finance leases | 2.5 | %
Lessee, Operating Lease, Liability, Maturity [Table Text Block] | The maturity of lease liabilities at September 30, 2019 was as follows:
Maturity of Lease Liabilities | Operating Leases |  | Finance Leases |  | Total |
Remaining 2019 | $ | 5.0 |  | $ | 0.1 |  | $ | 5.1 |
2020 | 16.4 |  | 0.2 |  | 16.6 |
2021 | 11.4 |  | — |  | 11.4 |
2022 | 7.2 |  | — |  | 7.2 |
2023 | 4.9 |  | — |  | 4.9 |
Thereafter | 5.0 |  | — |  | 5.0 |
Total lease payments | $ | 49.9 |  | $ | 0.3 |  | $ | 50.2 |
Less: Interest | (3.6 | ) | — |  | (3.6 | )
Present value of lease liabilities | $ | 46.3 |  | $ | 0.3 |  | $ | 46.6 |
Finance Lease, Liability, Maturity [Table Text Block] | The maturity of lease liabilities at September 30, 2019 was as follows:
Maturity of Lease Liabilities | Operating Leases |  | Finance Leases |  | Total |
Remaining 2019 | $ | 5.0 |  | $ | 0.1 |  | $ | 5.1 |
2020 | 16.4 |  | 0.2 |  | 16.6 |
2021 | 11.4 |  | — |  | 11.4 |
2022 | 7.2 |  | — |  | 7.2 |
2023 | 4.9 |  | — |  | 4.9 |
Thereafter | 5.0 |  | — |  | 5.0 |
Total lease payments | $ | 49.9 |  | $ | 0.3 |  | $ | 50.2 |
Less: Interest | (3.6 | ) | — |  | (3.6 | )
Present value of lease liabilities | $ | 46.3 |  | $ | 0.3 |  | $ | 46.6 |
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] |  | The minimum rentals for aggregate lease commitments as of December 31, 2018 were as follows:
2019 | $ | 15.2 |
2020 | 9.0 |
2021 | 5.5 |
2022 | 3.6 |
2023 | 2.6 |
Thereafter | 4.2 |
Total | $ | 40.1 |

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- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. + 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 Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + 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 Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 + Details
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