Separate Financial Information of Subsidiary Guarantors of Indebtedness (As Restated) - Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 237,174	$ 224,598	$ 194,418	$ 202,828
Restricted cash and cash equivalents	174,324	204,463
Residential loans at amortized cost, net	678,482	665,209
Residential loans at fair value	12,240,962	12,416,542
Receivables, net	224,732	267,962
Servicer and protective advances, net	1,005,157	1,195,380
Servicing rights, net	1,006,428	1,029,719
Goodwill	47,747	47,747
Intangible assets, net	10,445	11,347
Premises and equipment, net	73,999	82,628
Assets held for sale	0	71,085
Other assets	201,346	242,290
Due from affiliates, net	0	0
Investments in consolidated subsidiaries and VIEs	0	0
Total assets	15,900,796	16,458,970
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Payables and accrued liabilities	699,741	759,011
Servicer payables	138,059	146,332
Servicing advance liabilities	662,206	783,229
Warehouse borrowings	1,094,677	1,203,355
Servicing rights related liabilities at fair value	3,537	1,902
Corporate debt	2,112,328	2,129,000
Mortgage-backed debt	916,952	943,956
HMBS related obligations at fair value	10,289,505	10,509,449
Liabilities held for sale	0	2,402
Deferred tax liabilities, net	2,901	4,774
Obligation to fund Non-Guarantor VIEs	0	0
Due to affiliates, net	0	0
Total liabilities	15,919,906	16,483,410
Stockholders' equity (deficit):
Total stockholders' equity (deficit)	(19,110)	(24,440)
Total liabilities and stockholders' equity (deficit)	15,900,796	16,458,970
Reportable Legal Entities | Parent Company
ASSETS
Cash and cash equivalents	1,057	773	4,188	4,016
Restricted cash and cash equivalents	1,502	1,502
Residential loans at amortized cost, net	12,510	12,891
Residential loans at fair value	0	0
Receivables, net	87,047	97,424
Servicer and protective advances, net	0	0
Servicing rights, net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Premises and equipment, net	1,115	1,181
Assets held for sale		0
Other assets	18,104	30,789
Due from affiliates, net	497,175	392,998
Investments in consolidated subsidiaries and VIEs	1,532,365	1,620,339
Total assets	2,150,875	2,157,897
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Payables and accrued liabilities	57,657	53,337
Servicer payables	0	0
Servicing advance liabilities	0	0
Warehouse borrowings	0	0
Servicing rights related liabilities at fair value	0	0
Corporate debt	2,112,328	2,129,000
Mortgage-backed debt	0	0
HMBS related obligations at fair value	0	0
Liabilities held for sale		0
Deferred tax liabilities, net	0	0
Obligation to fund Non-Guarantor VIEs	0	0
Due to affiliates, net	0	0
Total liabilities	2,169,985	2,182,337
Stockholders' equity (deficit):
Total stockholders' equity (deficit)	(19,110)	(24,440)
Total liabilities and stockholders' equity (deficit)	2,150,875	2,157,897
Reportable Legal Entities | Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	234,117	221,825	188,230	196,812
Restricted cash and cash equivalents	129,462	158,204
Residential loans at amortized cost, net	212,498	189,441
Residential loans at fair value	11,800,743	11,924,043
Receivables, net	123,841	154,852
Servicer and protective advances, net	417,330	481,099
Servicing rights, net	1,006,428	1,029,719
Goodwill	47,747	47,747
Intangible assets, net	10,445	11,347
Premises and equipment, net	72,884	81,447
Assets held for sale		65,045
Other assets	169,241	191,671
Due from affiliates, net	0	0
Investments in consolidated subsidiaries and VIEs	67,216	134,612
Total assets	14,291,952	14,691,052
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Payables and accrued liabilities	644,503	708,070
Servicer payables	138,059	146,332
Servicing advance liabilities	119,678	132,664
Warehouse borrowings	1,094,677	1,203,355
Servicing rights related liabilities at fair value	3,537	1,902
Corporate debt	0	0
Mortgage-backed debt	0	0
HMBS related obligations at fair value	10,289,505	10,509,449
Liabilities held for sale		1,179
Deferred tax liabilities, net	2,901	3,204
Obligation to fund Non-Guarantor VIEs	41,619	46,417
Due to affiliates, net	496,625	392,812
Total liabilities	12,831,104	13,145,384
Stockholders' equity (deficit):
Total stockholders' equity (deficit)	1,460,848	1,545,668
Total liabilities and stockholders' equity (deficit)	14,291,952	14,691,052
Reportable Legal Entities | Non-Guarantor Subsidiaries and VIEs
ASSETS
Cash and cash equivalents	2,000	2,000	2,000	2,000
Restricted cash and cash equivalents	43,360	44,757
Residential loans at amortized cost, net	453,474	462,877
Residential loans at fair value	440,219	492,499
Receivables, net	13,844	15,686
Servicer and protective advances, net	566,314	688,961
Servicing rights, net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Premises and equipment, net	0	0
Assets held for sale		6,040
Other assets	14,001	19,830
Due from affiliates, net	0	0
Investments in consolidated subsidiaries and VIEs	0	0
Total assets	1,533,212	1,732,650
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Payables and accrued liabilities	4,424	5,474
Servicer payables	0	0
Servicing advance liabilities	542,528	650,565
Warehouse borrowings	0	0
Servicing rights related liabilities at fair value	0	0
Corporate debt	0	0
Mortgage-backed debt	916,952	943,956
HMBS related obligations at fair value	0	0
Liabilities held for sale		1,223
Deferred tax liabilities, net	0	1,570
Obligation to fund Non-Guarantor VIEs	0	0
Due to affiliates, net	550	185
Total liabilities	1,464,454	1,602,973
Stockholders' equity (deficit):
Total stockholders' equity (deficit)	68,758	129,677
Total liabilities and stockholders' equity (deficit)	1,533,212	1,732,650
Eliminations and Reclassifications
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, net	0	0
Servicer and protective advances, net	21,513	25,320
Servicing rights, net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Premises and equipment, net	0	0
Assets held for sale		0
Other assets	0	0
Due from affiliates, net	(497,175)	(392,998)
Investments in consolidated subsidiaries and VIEs	(1,599,581)	(1,754,951)
Total assets	(2,075,243)	(2,122,629)
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Payables and accrued liabilities	(6,843)	(7,870)
Servicer payables	0	0
Servicing advance liabilities	0	0
Warehouse borrowings	0	0
Servicing rights related liabilities at fair value	0	0
Corporate debt	0	0
Mortgage-backed debt	0	0
HMBS related obligations at fair value	0	0
Liabilities held for sale		0
Deferred tax liabilities, net	0	0
Obligation to fund Non-Guarantor VIEs	(41,619)	(46,417)
Due to affiliates, net	(497,175)	(392,997)
Total liabilities	(545,637)	(447,284)
Stockholders' equity (deficit):
Total stockholders' equity (deficit)	(1,529,606)	(1,675,345)
Total liabilities and stockholders' equity (deficit)	$ (2,075,243)	$ (2,122,629)