Borrowings - Narrative (Details)	9 Months Ended
Sep. 30, 2020 USD ($)
Debt Instrument [Line Items]
Covenant compliance, consolidated tangible net worth at period end	$ 200,000,000.0
Debt instrument covenant compliance on repurchase of securities and prepayment of junior debt	$ 10,000,000.0
Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Redemption price	104.188%
Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Redemption price	102.094%
Thereafter
Debt Instrument [Line Items]
Redemption price	100.00%
Senior Notes \| 8.375% Senior Secured Notes Due In 2022
Debt Instrument [Line Items]
Percentage of principal amount, repurchase price	101.00%
Secured Debt \| 8.375% Senior Secured Notes Due In 2022
Debt Instrument [Line Items]
Interest rate (as a percent)	8.375%
Minimum
Debt Instrument [Line Items]
Restrictive liquidity requirements	$ 125,000,000.0
Minimum \| Senior Notes \| 8.375% Senior Secured Notes Due In 2022
Debt Instrument [Line Items]
Redemption period, notice	30 days
Maximum \| Senior Notes \| 8.375% Senior Secured Notes Due In 2022
Debt Instrument [Line Items]
Redemption period, notice	60 days
Senior Secured Term Loan
Debt Instrument [Line Items]
Percentage of loan to value	40.00%
Minimum unencumbered asset coverage ratio, period one	200.00%
Minimum unencumbered asset coverage ratio, period two	225.00%
Minimum unrestricted cash	$ 125,000,000.0

Debt Instrument, Change Of Control, Purchase Price, Percentage

No definition available.

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- Definition

Represents the amount of consolidated tangible net worth requirement as part of the most restrictive covenant requirement.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Covenant Compliance, Liquidity Requirement

+ References

No definition available.

+ Details

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- Definition

Debt instrument covenant compliance on repurchase of securities and prepayment of junior debt.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Covenant Terms, Minimum Unencumbered Asset Coverage Ratio, Period One

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Covenant Terms, Minimum Unencumbered Asset Coverage Ratio, Period Two

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Covenant Terms, Minimum Unrestricted Cash

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Redemption Period Notice

+ References

No definition available.

+ Details

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- Definition

Percentage of loan to collateral value.

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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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.

+ References

No definition available.

+ Details

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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