Commitments, Contingencies and Off-Balance Sheet Arrangements - Contractual Obligations (Detail) $ in Millions	Jun. 30, 2017 USD ($)
Note Purchase Agreements [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	$ 300.0
Contractual Obligations, Payments Due by Period, 2018	100.0
Contractual Obligations, Payments Due by Period, 2019	100.0
Contractual Obligations, Payments Due by Period, 2020	100.0
Contractual Obligations, Payments Due by Period, 2021	75.0
Contractual Obligations, Payments Due by Period, Thereafter	2,025.0
Contractual Obligations, Payments Due by Period, Total	2,700.0
Multi Currency Credit Agreement [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	318.0
Contractual Obligations, Payments Due by Period, Total	318.0
Premium Financing Debt Facility [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	100.0
Contractual Obligations, Payments Due by Period, Total	100.0
Interest On Debt [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	62.4
Contractual Obligations, Payments Due by Period, 2018	103.6
Contractual Obligations, Payments Due by Period, 2019	99.2
Contractual Obligations, Payments Due by Period, 2020	94.8
Contractual Obligations, Payments Due by Period, 2021	89.8
Contractual Obligations, Payments Due by Period, Thereafter	358.4
Contractual Obligations, Payments Due by Period, Total	808.2
Total Debt Obligations [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	780.4
Contractual Obligations, Payments Due by Period, 2018	203.6
Contractual Obligations, Payments Due by Period, 2019	199.2
Contractual Obligations, Payments Due by Period, 2020	194.8
Contractual Obligations, Payments Due by Period, 2021	164.8
Contractual Obligations, Payments Due by Period, Thereafter	2,383.4
Contractual Obligations, Payments Due by Period, Total	3,926.2
Operating Lease Obligations [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	54.9
Contractual Obligations, Payments Due by Period, 2018	94.5
Contractual Obligations, Payments Due by Period, 2019	79.1
Contractual Obligations, Payments Due by Period, 2020	64.8
Contractual Obligations, Payments Due by Period, 2021	53.7
Contractual Obligations, Payments Due by Period, Thereafter	129.3
Contractual Obligations, Payments Due by Period, Total	476.3
Less Sublease Arrangements [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	(0.7)
Contractual Obligations, Payments Due by Period, 2018	(0.4)
Contractual Obligations, Payments Due by Period, 2019	(0.1)
Contractual Obligations, Payments Due by Period, 2020	(0.1)
Contractual Obligations, Payments Due by Period, Total	(1.3)
Outstanding Purchase Obligations [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	33.2
Contractual Obligations, Payments Due by Period, 2018	34.4
Contractual Obligations, Payments Due by Period, 2019	18.7
Contractual Obligations, Payments Due by Period, 2020	7.4
Contractual Obligations, Payments Due by Period, 2021	2.2
Contractual Obligations, Payments Due by Period, Total	95.9
Total Contractual Obligations [Member]
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Contractual Obligations, Payments Due by Period, 2017	867.8
Contractual Obligations, Payments Due by Period, 2018	332.1
Contractual Obligations, Payments Due by Period, 2019	296.9
Contractual Obligations, Payments Due by Period, 2020	266.9
Contractual Obligations, Payments Due by Period, 2021	220.7
Contractual Obligations, Payments Due by Period, Thereafter	2,512.7
Contractual Obligations, Payments Due by Period, Total	$ 4,497.1

Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]

No definition available.

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- Definition

Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=77896938&loc=d3e25383-109308

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Amount of the recorded unconditional purchase obligation maturing after 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.

+ References

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Amount of the recorded unconditional purchase 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.

+ References

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Amount of the recorded unconditional purchase 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.

+ References

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Amount of the recorded unconditional purchase 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.

+ References

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Amount of the recorded unconditional purchase 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.

+ References

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Amount of the recorded unconditional purchase 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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