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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Mar. 31, 2019
Investment [Line Items]
Other investments	$ 16,395	$ 15,913	$ 12,488
Investments valued under the measurement alternative	4,537		6,764
Total Investments	193,168		154,491
Equity method investments in Partnerships
Investment [Line Items]
Equity method investments	159,984		122,505
Equity method investments in Partnerships held by consolidated VIEs
Investment [Line Items]
Equity method investments	11,183		11,648
Other equity method investments
Investment [Line Items]
Equity method investments	$ 1,069		$ 1,086

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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