Fair value of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122739-111746

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=7516967&loc=d3e66267-113978

Name:	us-gaap_ServicingAssetAtAmortizedValueFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Servicing of Residential Loans - Additional Information (Detail) (USD $)					6 Months Ended
	Jun. 30, 2014 Forward Loans [Member]	Dec. 31, 2013 Forward Loans [Member]	Jun. 30, 2014 Reverse Loans [Member]	Dec. 31, 2013 Reverse Loans [Member]	Jun. 30, 2014 Minimum [Member]	Jun. 30, 2014 Maximum [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Fair value of servicing rights carried at amortized cost	$ 172,149,000		$ 15,430,000
Fair value of servicing rights		$ 192,100,000		$ 15,900,000
Adverse Change in assumptions percent					10.00%	20.00%