VARIABLE INTEREST ENTITIES Schedule of Financial Condition of VIEs Reflected in Consolidated Statements of Financial Condition (Details) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	[1]	$ 1,122,793	$ 1,243,703	[2]
Assets transferred or pledged to securitization vehicles		3,768,922	6,910,020	[2]
Mortgage servicing rights		113,080	100,895	[2]
Principal and interest receivable		259,655	268,073	[2]
Other assets		177,907	225,494	[2]
Total assets		85,369,589	88,455,103	[2]
Liabilities
Other secured financing		922,605	917,876	[2]
Interest payable		100,949	191,116	[2]
Other liabilities		213,924	155,613	[2]
Total liabilities		71,301,994	74,433,307	[2]
Consolidated VIEs
Assets
Cash and cash equivalents		30,500	22,200
Consolidated VIEs | Residential Trusts
Assets
Cash and cash equivalents		0	0
Loans		0	0
Assets transferred or pledged to securitization vehicles		36,786	40,035
Mortgage servicing rights		0	0
Principal and interest receivable		214	226
Other assets		0
Total assets		37,000	40,261
Liabilities
Debt issued by securitization vehicles (non-recourse)		20,254	23,351
Other secured financing			0
Payable for unsettled trades		0	0
Interest payable		48	55
Other liabilities		408	246
Total liabilities		20,710	23,652
Consolidated VIEs | MSR Silo
Assets
Cash and cash equivalents		30,529	22,241
Loans		45,982	47,048
Assets transferred or pledged to securitization vehicles		0	0
Mortgage servicing rights		113,080	100,895
Principal and interest receivable		0	0
Other assets		24,150
Total assets		213,741	170,184
Liabilities
Debt issued by securitization vehicles (non-recourse)		0	0
Other secured financing			30,420
Payable for unsettled trades		587	3,076
Interest payable		0	0
Other liabilities		13,106	13,345
Total liabilities		$ 13,693	$ 46,841

[1] Includes cash of consolidated Variable Interest Entities (“VIEs”) of $30.5 million and $22.2 million at March 31, 2021 and December 31, 2020, respectively.

[2] Derived from the audited consolidated financial statements at December 31, 2020.