Restatement of Previously Issued Consolidated Financial Statements - Schedule of Restatements to Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 224,598	$ 202,828	$ 320,175	$ 491,885
Restricted cash and cash equivalents	204,463	708,099
Residential loans at amortized cost, net	665,209	541,406
Residential loans at fair value	12,416,542	12,673,439
Receivables, net	267,962	137,190
Servicer and protective advances, net	1,195,380	1,631,065
Servicing rights, net	1,029,719	1,788,576
Goodwill	47,747	367,911	575,468
Intangible assets, net	11,347	84,038
Premises and equipment, net	82,628	106,481
Deferred tax assets, net	0	108,050
Assets held for sale	71,085	0
Other assets	242,290	200,364
Total assets	16,458,970	18,549,447
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Payables and accrued liabilities	759,011	597,926
Servicer payables	146,332	603,692
Servicing advance liabilities	783,229	1,229,280
Warehouse borrowings	1,203,355	1,340,388
Servicing rights related liabilities at fair value	1,902	117,000
Corporate debt	2,129,000	2,157,424
Mortgage-backed debt	943,956	1,051,679
HMBS related obligations at fair value	10,509,449	10,647,382
Deferred tax liabilities, net	4,774	0
Liabilities held for sale	2,402	0
Total liabilities	16,483,410	17,744,771
Stockholders' equity (deficit):
Preferred stock	0	0
Common stock	364	355
Additional paid-in capital	596,067	591,454
Accumulated deficit	(621,804)	212,054
Accumulated other comprehensive income	933	813
Total stockholders' equity (deficit)	(24,440)	804,676	$ 1,076,659	$ 1,167,016
Total liabilities and stockholders' equity (deficit)	16,458,970	18,549,447
As Previously Reported [Member]
ASSETS
Cash and cash equivalents	224,598	202,828
Restricted cash and cash equivalents	204,463
Residential loans at amortized cost, net	665,209
Residential loans at fair value	12,416,542
Receivables, net	267,962
Servicer and protective advances, net	1,195,380
Servicing rights, net	1,029,719
Goodwill	47,747
Intangible assets, net	11,347
Premises and equipment, net	82,628
Deferred tax assets, net	299,926
Assets held for sale	71,085
Other assets	242,290
Total assets	16,758,896
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Payables and accrued liabilities	759,011
Servicer payables	146,332
Servicing advance liabilities	783,229
Warehouse borrowings	1,203,355
Servicing rights related liabilities at fair value	1,902
Corporate debt	2,129,000
Mortgage-backed debt	943,956
HMBS related obligations at fair value	10,509,449
Deferred tax liabilities, net	0
Liabilities held for sale	2,402
Total liabilities	16,478,636
Stockholders' equity (deficit):
Preferred stock	0
Common stock	364
Additional paid-in capital	596,067
Accumulated deficit	(317,104)
Accumulated other comprehensive income	933
Total stockholders' equity (deficit)	280,260
Total liabilities and stockholders' equity (deficit)	16,758,896
Restatement Adjustments [Member] | Deferred Tax Asset Valuation Allowance Adjustments [Member]
ASSETS
Cash and cash equivalents	0	$ 0
Restricted cash and cash equivalents	0
Residential loans at amortized cost, net	0
Residential loans at fair value	0
Receivables, net	0
Servicer and protective advances, net	0
Servicing rights, net	0
Goodwill	0
Intangible assets, net	0
Premises and equipment, net	0
Deferred tax assets, net	(299,926)
Assets held for sale	0
Other assets	0
Total assets	(299,926)
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Payables and accrued liabilities	0
Servicer payables	0
Servicing advance liabilities	0
Warehouse borrowings	0
Servicing rights related liabilities at fair value	0
Corporate debt	0
Mortgage-backed debt	0
HMBS related obligations at fair value	0
Deferred tax liabilities, net	4,774
Liabilities held for sale	0
Total liabilities	4,774
Stockholders' equity (deficit):
Preferred stock	0
Common stock	0
Additional paid-in capital	0
Accumulated deficit	(304,700)
Accumulated other comprehensive income	0
Total stockholders' equity (deficit)	(304,700)
Total liabilities and stockholders' equity (deficit)	$ (299,926)