Separate Financial Information of Subsidiary Guarantors of Indebtedness Subsidiary Guarantors of Indebtedness - Schedule of Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 343,780	$ 320,175	$ 303,341	$ 491,885
Restricted cash and cash equivalents	850,533	733,015
Residential loans at amortized cost, net	542,892	1,314,539
Residential loans at fair value	12,922,303	11,832,630
Receivables at fair value	259,920	215,629
Servicer and protective advances, net	1,550,592	1,761,082
Servicing Rights, Net	1,917,551	1,730,216
Goodwill	518,929	575,468
Intangible assets, net	95,784	103,503
Premises and equipment, net	109,831	124,926
Other assets	232,417	280,794
Due from affiliates, net	0	0
Investments in consolidated subsidiaries and VIEs	0	0
Total assets	19,344,532	18,991,977
LIABILITIES AND STOCKHOLDERS' EQUITY
Payables and accrued liabilities	622,868	663,829
Servicer payables	704,318	584,567
Servicing advance liabilities	1,245,318	1,365,885
Warehouse borrowings	1,620,260	1,176,956
Excess servicing spread liability at fair value	64,556	66,311
Corporate debt	2,266,105	2,267,799
Mortgage-backed debt	1,108,032	1,751,459
HMBS related obligations at fair value	10,588,671	9,951,895
Deferred tax liability, net	108,355	86,617
Obligation to fund Non-Guarantor VIEs	0	0
Due to affiliates, net	0	0
Total liabilities	18,328,483	17,915,318
Stockholders' equity:
Total stockholders' equity	1,016,049	1,076,659
Total liabilities and stockholders' equity	19,344,532	18,991,977
Parent Company [Member]
ASSETS
Cash and cash equivalents	7,160	3,162	11,215	100,009
Restricted cash and cash equivalents	10,510	10,507
Residential loans at amortized cost, net	14,334	13,302
Residential loans at fair value	0	0
Receivables at fair value	33,237	16,363
Servicer and protective advances, net	0	0
Servicing Rights, Net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Premises and equipment, net	241	157
Other assets	51,598	69,780
Due from affiliates, net	831,224	697,979
Investments in consolidated subsidiaries and VIEs	2,414,265	2,641,527
Total assets	3,362,569	3,452,777
LIABILITIES AND STOCKHOLDERS' EQUITY
Payables and accrued liabilities	40,453	42,076
Servicer payables	0	0
Servicing advance liabilities	0	0
Warehouse borrowings	0	0
Excess servicing spread liability at fair value	0	0
Corporate debt	2,264,887	2,265,668
Mortgage-backed debt	0	0
HMBS related obligations at fair value	0	0
Deferred tax liability, net	41,180	68,374
Obligation to fund Non-Guarantor VIEs	0	0
Due to affiliates, net	0	0
Total liabilities	2,346,520	2,376,118
Stockholders' equity:
Total stockholders' equity	1,016,049	1,076,659
Total liabilities and stockholders' equity	3,362,569	3,452,777
Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	334,620	311,810	286,933	388,644
Restricted cash and cash equivalents	758,986	617,774
Residential loans at amortized cost, net	10,047	8,456
Residential loans at fair value	12,368,893	11,246,197
Receivables at fair value	204,828	172,579
Servicer and protective advances, net	441,681	527,758
Servicing Rights, Net	1,917,551	1,730,216
Goodwill	518,929	575,468
Intangible assets, net	89,904	97,248
Premises and equipment, net	109,590	124,769
Other assets	165,741	164,815
Due from affiliates, net	0	0
Investments in consolidated subsidiaries and VIEs	21,233	15,756
Total assets	16,942,003	15,592,846
LIABILITIES AND STOCKHOLDERS' EQUITY
Payables and accrued liabilities	582,722	616,445
Servicer payables	704,318	584,567
Servicing advance liabilities	208,909	205,628
Warehouse borrowings	1,620,260	1,176,956
Excess servicing spread liability at fair value	64,556	66,311
Corporate debt	1,218	2,131
Mortgage-backed debt	0	0
HMBS related obligations at fair value	10,588,671	9,951,895
Deferred tax liability, net	64,060	15,353
Obligation to fund Non-Guarantor VIEs	33,665	32,902
Due to affiliates, net	740,498	583,331
Total liabilities	14,608,877	13,235,519
Stockholders' equity:
Total stockholders' equity	2,333,126	2,357,327
Total liabilities and stockholders' equity	16,942,003	15,592,846
Non-Guarantor Subsidiaries [Member]
ASSETS
Cash and cash equivalents	2,000	5,203	5,193	3,232
Restricted cash and cash equivalents	81,037	104,734
Residential loans at amortized cost, net	518,511	1,292,781
Residential loans at fair value	553,410	586,433
Receivables at fair value	21,855	26,687
Servicer and protective advances, net	1,073,778	1,192,473
Servicing Rights, Net	0	0
Goodwill	0	0
Intangible assets, net	5,880	6,255
Premises and equipment, net	0	0
Other assets	15,078	46,199
Due from affiliates, net	0	0
Investments in consolidated subsidiaries and VIEs	0	0
Total assets	2,271,549	3,260,765
LIABILITIES AND STOCKHOLDERS' EQUITY
Payables and accrued liabilities	4,973	14,294
Servicer payables	0	0
Servicing advance liabilities	1,036,409	1,160,257
Warehouse borrowings	0	0
Excess servicing spread liability at fair value	0	0
Corporate debt	0	0
Mortgage-backed debt	1,108,032	1,751,459
HMBS related obligations at fair value	0	0
Deferred tax liability, net	2,844	2,869
Obligation to fund Non-Guarantor VIEs	0	0
Due to affiliates, net	90,726	114,648
Total liabilities	2,242,984	3,043,527
Stockholders' equity:
Total stockholders' equity	28,565	217,238
Total liabilities and stockholders' equity	2,271,549	3,260,765
Consolidation, Eliminations [Member]
ASSETS
Cash and cash equivalents	0	0	$ 0	$ 0
Restricted cash and cash equivalents	0	0
Residential loans at amortized cost, net	0	0
Residential loans at fair value	0	0
Receivables at fair value	0	0
Servicer and protective advances, net	35,133	40,851
Servicing Rights, Net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Premises and equipment, net	0	0
Other assets	0	0
Due from affiliates, net	(831,224)	(697,979)
Investments in consolidated subsidiaries and VIEs	(2,435,498)	(2,657,283)
Total assets	(3,231,589)	(3,314,411)
LIABILITIES AND STOCKHOLDERS' EQUITY
Payables and accrued liabilities	(5,280)	(8,986)
Servicer payables	0	0
Servicing advance liabilities	0	0
Warehouse borrowings	0	0
Excess servicing spread liability at fair value	0	0
Corporate debt	0	0
Mortgage-backed debt	0	0
HMBS related obligations at fair value	0	0
Deferred tax liability, net	271	21
Obligation to fund Non-Guarantor VIEs	(33,665)	(32,902)
Due to affiliates, net	(831,224)	(697,979)
Total liabilities	(869,898)	(739,846)
Stockholders' equity:
Total stockholders' equity	(2,361,691)	(2,574,565)
Total liabilities and stockholders' equity	$ (3,231,589)	$ (3,314,411)