Real Estate Assets (Details) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($) property	Dec. 31, 2016 USD ($) property	Dec. 31, 2015 USD ($)
Real Estate [Abstract]
Number of real estate properties held for use \| property	12,241	9,939
Number of real estate properties rented \| property	10,850	7,293
Number of real estate properties listed for rent \| property	591	703
Number of real estate properties in various stages of renovation \| property	534	607
Number of real estate properties under evaluation for rental portfolio \| property	266	1,336
Real Estate Properties [Line Items]
Losses resulting from natural disasters	$ (6,021)	$ 0	$ 0
Insurance recoveries related to natural disasters	3,349	0	0
Operating Leases, Future Minimum Payments Receivable [Abstract]
2018	77,777
2019	19,014
2020	614
2021	0
2022 and thereafter	0
Total future minimum payments receivable	97,405
REO valuation impairment	$ 3,000	$ 7,400	3,500
Number of real estate properties held for sale \| property	333	594
Real estate assets held for sale	$ 75,718	$ 133,327
Impairment on our real estate held for sale	$ 17,300	$ 25,800	$ 33,000
Minimum
Real Estate Properties [Line Items]
Term of leases offered to lessees	1 year
Maximum
Real Estate Properties [Line Items]
Term of leases offered to lessees	2 years
Hurricane \| Loss from Catastrophes
Real Estate Properties [Line Items]
Loss contingency, loss in period	$ 2,700

Number of real estate properties held for sale

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Number of real estate properties held for use

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Number of real estate properties in various stages of renovation

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Number of real estate properties listed for rent

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Number of real estate properties rented

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Number of real estate properties under evaluation for rental portfolio

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Operating Leases, Future Minimum Payments Receivable, In Five Years And Thereafter

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

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Term of the lessor's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

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The charge against earnings in the period for the uninsured portion of a loss from a fire, explosion, or natural disaster (hurricane, earthquake).

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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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Future rental payments receivable within one year of the balance sheet date under an operating lease.

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Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the third year from the balance sheet date under an operating lease.

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Future rental payments receivable within the second year from the balance sheet date under an operating lease.

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Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

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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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