Borrowing Facilities (Maturities of Long-Term Debt And Capital Lease Obligations) (Details) $ in Millions	Dec. 31, 2017 USD ($)
Debt Disclosure [Abstract]
Aggregate maturies of long-term debt and capital lease obligations in 2018	$ 18.3
Aggregate maturies of long-term debt and capital lease obligations in 2019	24.2
Aggregate maturies of long-term debt and capital lease obligations in 2020	168.1
Aggregate maturies of long-term debt and capital lease obligations in 2021	1.5
Aggregate maturies of long-term debt and capital lease obligations in 2022	$ 1.7

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- Definition

Principal amount of long-term debt and capital lease obligation maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Principal amount of long-term debt and capital lease obligation maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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- Definition

Principal amount of long-term debt and capital lease obligation maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Principal amount of long-term debt and capital lease obligation maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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- Definition

Principal amount of long-term debt and capital lease obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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