Servicing of Residential Loans - Summary of Activity in Servicing Rights Carried at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 1,599,541us-gaap_ServicingAssetAtFairValueAmount	$ 1,131,124us-gaap_ServicingAssetAtFairValueAmount
Change in fair value due to:
Changes in valuation inputs or other assumptions	(74,534)	(25,618)
Other changes in fair value	(54,701)	(22,016)
Total change in fair value	(129,235)	(47,634)
Balance at end of the period	1,570,320us-gaap_ServicingAssetAtFairValueAmount	1,513,830us-gaap_ServicingAssetAtFairValueAmount
Everbank Financial Corp [Member]
Servicing Asset at Fair Value, Amount [Roll Forward]
Servicing assets recorded	0	58,680
Purchase Of Servicing Rights [Member]
Servicing Asset at Fair Value, Amount [Roll Forward]
Servicing assets recorded	27,713	319,047
Capitalized Servicing Rights [Member]
Servicing Asset at Fair Value, Amount [Roll Forward]
Servicing assets recorded	$ 72,301	$ 52,613

The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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- Definition

The net Increase or Decrease in fair value as a result of changes in the inputs, assumptions, or model used to calculate the fair value of servicing assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(4)(i)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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- Definition

The net Increase or Decrease in fair value as a result of other changes that are not additions, disposals, or a result of change in the inputs, assumptions, or model used to calculate the fair value of servicing assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)(4)(ii)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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- Definition

The increase (decrease) in the fair value of servicing assets that are subsequently measured at fair value.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122625-111746

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