Investments - Net Investment Income - Insurance - Components of Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Schedule of Investments [Line Items]
Net investment income	$ 3,330	$ 3,023	$ 9,331	$ 8,803
Other revenue	21,058	12,783	52,237	41,974
Vessel related revenue	68,814	41,466	182,296	117,451
Vessel related revenue
Schedule of Investments [Line Items]
Vessel related revenue	11,426	5,517	25,043	17,218
Tiptree Insurance
Schedule of Investments [Line Items]
Subtotal	3,894	3,653	10,999	10,522
Less: investment expenses	564	630	1,668	1,719
Net investment income	3,330	3,023	9,331	8,803
Tiptree Insurance \| AFS securities
Schedule of Investments [Line Items]
Investment income, gross	1,840	1,748	5,246	6,003
Tiptree Insurance \| Loans, at fair value
Schedule of Investments [Line Items]
Investment income, gross	181	113	680	509
Tiptree Insurance \| Other investments
Schedule of Investments [Line Items]
Investment income, gross	1,597	1,718	4,593	2,868
Tiptree Insurance \| Dividends from equity securities
Schedule of Investments [Line Items]
Investment income, gross	276	74	480	1,142
Tiptree Capital - Mortgage
Schedule of Investments [Line Items]
Other revenue	17,890	11,667	45,060	36,414
Tiptree Capital - Mortgage \| Loans, at fair value
Schedule of Investments [Line Items]
Other revenue	1,450	1,333	4,506	4,020
Tiptree Capital - Mortgage \| Loans, at fair value \| Loan fee income
Schedule of Investments [Line Items]
Other revenue	5,014	4,817	15,511	12,643
Tiptree Capital - Mortgage \| Dividends from equity securities
Schedule of Investments [Line Items]
Other revenue	$ 0	$ 0	$ 0	$ 2,533

Amount, before investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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