Date the declared dividend will be paid, in CCYY-MM-DD format.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

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- References

No definition available.

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- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

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- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

+ References

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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

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- Definition

Cash inflow received as distributions, returns of capital, or sale proceeds from partnership interests held for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	12 Months Ended
	Feb. 12, 2020	Jan. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subsequent Event [Abstract]
Amount withdrawn from partnership			$ 33,396	$ 6,869	$ 19,230
Subsequent Event [Member]
Subsequent Event [Abstract]
Dividend payable, date declared	Feb. 12, 2020
Dividend payable, date to be paid	Mar. 11, 2020
Dividend payable, date of record	Feb. 26, 2020
Subsequent Event [Member] \| Class A [Member]
Subsequent Event [Abstract]
Dividend payable (in dollars per share)	$ 0.10
Subsequent Event [Member] \| Class B [Member]
Subsequent Event [Abstract]
Dividend payable (in dollars per share)	$ 0.10
Subsequent Event [Member] \| New Vernon India Fund [Member]
Subsequent Event [Abstract]
Amount withdrawn from partnership		$ 13,167