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Investments - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Mar. 31, 2020 | Jun. 30, 2020 | Jun. 30, 2019
Schedule of Investments [Line Items] |  |  |  |  |
Payments to equity-method investments |  |  | $ 9,482 |  |
Proceeds from sale of ownership interests in a subsidiary |  |  |  | $ 42,210 | $ 8,254
Amount of senior preferred shares | $ 15 |  |  | 15 |
Gain (loss) on sale of ownership interests in a subsidiary | $ 11,208 | $ 0 |  | $ 11,208 | $ (4,465)
Minimum |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Effective yield (interest rate) |  |  |  | 6.00% |
Maximum |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Effective yield (interest rate) |  |  |  | 14.00% |

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- Definition Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684 + Details
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