Significant transactions Significant transactions - Assets Classified as Held for SaleRelated to the Empire Transaction (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total assets held for sale	$ 10.5	$ 0.0
Empire Insurance Company \| Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Short-term investments, at fair value	9.3	0.0
Cash	0.2	0.0
Accounts receivable on unsettled investment sales	1.0	0.0
Total assets held for sale	$ 10.5	$ 0.0

Disposal Group, Including Discontinued Operation, Short Term Investments

No definition available.

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- Definition

Amount of assets held-for-sale that are not part of a disposal group.

+ References

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- Definition

Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.

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- Definition

Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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