OTHER INCOME, ASSETS AND LIABILITIES - Schedule of Accretion and Other Amortization (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015
Accretion and other amortization:
Accretion of servicer advance interest income		$ 156,749	$ 150,937
Accretion of excess mortgage servicing rights income		76,231	49,397
Accretion of net discount on securities and loans	[1]	109,228	19,703
Amortization of deferred financing costs		(9,320)	(10,900)
Amortization of discount on notes and bonds payable		(973)	0
Accretion and other amortization		$ 331,915	$ 209,137

[1] Includes accretion of the accretable yield on PCD loans.