Annual Investment Management Fee

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- Definition

Debt Instrument, Extension Option Term

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- Definition

Debt Instrument, Maximum Borrowing Capacity

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- Definition

Notes Receivable, Interest Rate

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- Definition

Notes Receivable, Maximum Commitment

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- Definition

Payments For Cash Conversion Of Preferred Stock

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- Definition

Related Party Transaction, Shares Purchased, Percentage

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- Definition

Related Party Transaction, Shares Purchased, Value

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- Definition

The value of the financial instrument issued [noncash or part noncash] in the conversion of stock. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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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.

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No definition available.

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

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No definition available.

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Commitments and Contingencies - Narrative (Details) - USD ($)				3 Months Ended
	Nov. 02, 2020	Sep. 16, 2020	Aug. 06, 2020	Mar. 31, 2021	Dec. 31, 2020	Jan. 01, 2019	Dec. 31, 2018	Feb. 28, 2015
Arcadian Risk Capital Ltd [Member]
Other Commitments [Line Items]
Notes Receivable, Maximum Commitment		$ 18,000,000.0
Notes Receivable, Interest Rate		8.00%
Forecast \| Series B Preferred Stock [Member]
Other Commitments [Line Items]
Preferred Stock, Dividend Rate, Percentage				8.00%
Forecast \| Series B Preferences Share Conversion To New Preference Shares [Member] \| Series B Preferred Stock [Member]
Other Commitments [Line Items]
Conversion of Stock, Amount Issued				$ 260,000,000.0
Forecast \| Series B Preferences Share Conversion To partial Cash [Member]
Other Commitments [Line Items]
Payments For Cash Conversion Of Preferred Stock				60,000,000.0
Forecast \| Series B Preferences Share Conversion To All Cash [Member]
Other Commitments [Line Items]
Payments For Cash Conversion Of Preferred Stock				$ 260.0
TP Fund
Other Commitments [Line Items]
Annual investment management fee						1.25%	1.50%
Equity Commitment Letter [Member] \| Affiliated Entity [Member]
Other Commitments [Line Items]
Related Party Transaction, Shares Purchased, Percentage			9.50%
Related Party Transaction, Shares Purchased, Value			$ 50,000,000.0
Bridge Loan [Member]
Other Commitments [Line Items]
Debt Instrument, Maximum Borrowing Capacity			$ 125,000,000.0
7% Senior Unsecured Notes \| Unsecured Debt
Other Commitments [Line Items]
Debt issued					$ 115,000,000.0			$ 115,000,000.0
Interest rate					7.00%			7.00%
Unsecured Revolving Credit Facility [Member] \| Unsecured Debt
Other Commitments [Line Items]
Debt issued	$ 300,000,000.0
Term of debt	3 years
Extension option term	12 months
Unsecured Revolving Credit Facility [Member] \| Unsecured Debt \| Minimum
Other Commitments [Line Items]
Fee on undrawn commitments	0.20%
Unsecured Revolving Credit Facility [Member] \| Unsecured Debt \| Minimum \| Adjusted LIBOR
Other Commitments [Line Items]
Basis spread on variable rate	1.25%
Unsecured Revolving Credit Facility [Member] \| Unsecured Debt \| Minimum \| Base Rate
Other Commitments [Line Items]
Basis spread on variable rate	0.25%
Unsecured Revolving Credit Facility [Member] \| Unsecured Debt \| Maximum
Other Commitments [Line Items]
Fee on undrawn commitments	0.40%
Unsecured Revolving Credit Facility [Member] \| Unsecured Debt \| Maximum \| Adjusted LIBOR
Other Commitments [Line Items]
Basis spread on variable rate	2.25%
Unsecured Revolving Credit Facility [Member] \| Unsecured Debt \| Maximum \| Base Rate
Other Commitments [Line Items]
Basis spread on variable rate	1.25%