Equity Securities, FV-NI, Number Of Shares

No definition available.

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- Definition

Equity Securities, FV-NI, Price Per Share

+ References

No definition available.

+ Details

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- Definition

Equity Securities, FV-NI, Transfer Restrictions, Period

+ References

No definition available.

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- Definition

Sale Of Stock, Percentage Of Total Outstanding Common Stock That May Be Transferred

+ References

No definition available.

+ Details

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- Definition

Sale Of Stock, Trading Period

+ References

No definition available.

+ Details

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

+ Details

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- Definition

Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

+ References

No definition available.

+ Details

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- Definition

Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117546-209714

+ Details

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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.

+ Details

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Investments - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	6 Months Ended
	Jul. 19, 2018	Mar. 31, 2019	Mar. 31, 2019	Sep. 30, 2018
Subsidiary, Sale of Stock [Line Items]
Equity securities		$ 975.5	$ 975.5	$ 1,090.0
PTC
Subsidiary, Sale of Stock [Line Items]
Number of shares purchased (in shares)	10,582,010
Purchase of stock price (usd per share)	$ 94.50
Consideration paid to purchase stock	$ 1,000.0
Purchase of stock purchase period	3 years
Sale of stock, subsequent trading period	90 days
Equity securities		975.5	975.5
Trading investment, unrealized gain (loss)		$ 98.2	$ (114.5)
PTC \| Minimum
Subsidiary, Sale of Stock [Line Items]
Percentage of total outstanding common stock, that can be traded in future periods	1.00%
PTC \| Maximum
Subsidiary, Sale of Stock [Line Items]
Percentage of total outstanding common stock, that can be traded in future periods	2.00%