Fair Value - Schedule of Significant Assumptions used in Valuation (Details)	3 Months Ended
Mar. 31, 2015
Mortgage Servicing Rights - Amortized Costs [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average prepayment speed	12.57%
Weighted average delinquency rate	10.81%
Advance financing cost	5 years
Interest rate for computing float earnings	5 years
Weighted average discount rate	9.38%
Weighted average cost to service (in dollars)	86
Fair Value Agency Mortgage Servicing Rights [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average prepayment speed	10.47%
Weighted average delinquency rate	0.86%
Advance financing cost	5 years
Interest rate for computing float earnings	5 years
Weighted average discount rate	9.01%
Weighted average cost to service (in dollars)	69
Fair Value Non-Agency Mortgage Servicing Rights [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average prepayment speed	17.28%
Weighted average delinquency rate	30.02%
Weighted average discount rate	14.95%
Weighted average cost to service (in dollars)	339
Mortgage Servicing Rights Pledged [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted average prepayment speed	17.83%
Weighted average delinquency rate	31.00%
Weighted average discount rate	15.22%
Weighted average cost to service (in dollars)	345
London Interbank Offered Rate (LIBOR) [Member] \| Fair Value Non-Agency Mortgage Servicing Rights [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value input, interest rate	3.50%
London Interbank Offered Rate (LIBOR) [Member] \| Mortgage Servicing Rights Pledged [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value input, interest rate	3.50%

Represents the fair value inputs basis spread on advance borrowings.

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- Definition

Fair Value Inputs, Financing Costs, Comparative Derivative Term

+ References

No definition available.

+ Details

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- Definition

Fair Value Inputs, Financing Costs, Float Earnings

+ References

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+ Details

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- Definition

Fair value inputs, weighted average cost to service (in dollars).

+ References

No definition available.

+ Details

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

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- Definition

Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.

+ References

+ Details

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- Definition

Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value.

+ References

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