Servicing of Residential Loans - Summary of Activity in Servicing Rights Carried at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of year		$ 1,513,830	$ 766,943	$ 1,131,124	$ 26,382
Changes in fair value due to:
Changes in valuation inputs or other assumptions		(43,376)	93,311	(68,994)	89,331
Other changes in fair value		(40,176)	(28,234)	(62,192)	(45,329)
Balance at end of year		1,496,073	888,210	1,496,073	888,210
Everbank Financial Corp [Member]
Servicing Asset at Fair Value, Amount [Roll Forward]
Servicing rights capitalized upon transfers of loans	58,680	0	0	58,680	0
ResCap Acquisition [Member]
Servicing Asset at Fair Value, Amount [Roll Forward]
Servicing rights capitalized upon transfers of loans		0	0	0	242,604
Purchase Of Servicing Rights [Member]
Servicing Asset at Fair Value, Amount [Roll Forward]
Servicing rights capitalized upon transfers of loans		20,241	19,885	339,288	537,627
Capitalized Servicing Rights [Member]
Servicing Asset at Fair Value, Amount [Roll Forward]
Servicing rights capitalized upon transfers of loans		$ 45,554	$ 36,305	$ 98,167	$ 37,595