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Agreements and Transactions with Related Parties, Management Agreement (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Management Fees:
Base management fee incurred				$ 6.7
Former manager | Support Services
Agreements and transactions with related parties
Costs for services to related party	$ 0.3	$ 0.3	$ 0.9	$ 0.4

X

- Definition

Amount of base management fee for a variety of professional and advisory services vital to the entity's operations, including underwriting, accounting and treasury, compliance, marketing, information technology and human resources.

+ References

No definition available.

+ Details

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X

- Definition

Costs of sales and operating expenses for the period incurred from transactions with related parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

+ Details

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X

- References

No definition available.

+ Details

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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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- Details

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X

- Details

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