Line items represent reporting 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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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Amount of investment in marketable security.

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The cash outflow for the purchase of loan receivable arising from the financing of goods and services.

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Aggregate carrying value of owned private equity or other securities for which a quoted market price is not readily determinable, the value of which has been determined by management based upon fair value methods, including pricing of similar securities and valuation techniques and is included in the schedule of financial condition or the balance sheet.

+ References

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-Publisher SEC
-Name Rule 15c3-1
-Number 240
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Investments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Investments (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2018	Mar. 05, 2018	Dec. 31, 2017
Investments [Line Items]
Equity Method Investments			$ 90.9		$ 61.3
Equity Method Investment, Other than Temporary Impairment	$ 3.5	$ 10.0
Marketable Securities			1.2		10.7
Securities Owned Not Readily Marketable			$ 71.8		$ 46.8
fuboTV [Member]
Investments [Line Items]
Securities Owned Not Readily Marketable				$ 25.0
Payments to Acquire Loans Receivable		$ 25.0