Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2012
Accounts Receivable Purchase Agreement
Accounts receivable sold	$ 96.1
Retained beneficial interest recorded	14.3
Maximum amount of accounts receivable to be sold under a Receivables Purchase Agreement ("RPA")	125.0
Percentage rate added to floating market rate to get discount margin	2.00%
Goodwill
Change in goodwill due to reclassification adjustments	2.9
Segment goodwill increase	1.8
Intangible asset reclassified to goodwill	1.1
Increase in goodwill purchase price adjustment	0.7
Change in goodwill due to foreign currency translation adjustments	0.5
Immaterial Business Acquisitions
Goodwill
Number of businesses acquired	2
Immaterial Business Acquisitions \| Aviation segment
Goodwill
Acquisition of business, goodwill amount recorded	$ 6.1

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The increase (decrease) to the recorded value of segment goodwill due to reclassification adjustments.

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Represents the percentage rate added to floating market rate to get discount margin.

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The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

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Purchase price allocation adjustment for allocation not yet complete at the prior year end.

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Change in the carrying value of goodwill. The change could be the result of new goodwill acquired, goodwill impairment, if any, goodwill written off related to the sale of a business or other adjustments to goodwill.

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Purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

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The increase (decrease) to the recorded value of goodwill for foreign currency translation adjustments.

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The number of businesses acquired by the entity during the period.

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The total principal outstanding of financial assets transferred in a securitization, asset-backed financing arrangement, or similar transfer that has been accounted for as sales and in which the transferor continues to have involvement, including both the derecognized and recognized portion of such transferred assets.

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The face amount of all receivables that will be sold to other entities, including trade and loan receivables.

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