SECURITIES - Weighted Average Life (Details) - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Estimated Fair Value
Total	[1]	$ 116,094,061	$ 92,623,788	[2]
Amortized Cost
Total		113,858,974	94,853,660
Total Residential Securities
Estimated Fair Value
Less than one year		5,508	13,447
Greater than one year through five years		58,857,860	11,710,172
Greater than five years through ten years		57,032,062	80,202,479
Greater than ten years		57,780	540,932
Total		115,953,210	92,467,030
Amortized Cost
Less than one year		6,454	13,670
Greater than one year through five years		57,504,374	11,928,973
Greater than five years through ten years		56,163,913	82,218,464
Greater than ten years		51,681	536,594
Total		$ 113,726,422	$ 94,697,701

[1] ⁽³⁾  Excludes $429.1 million and $83.6 million at September 30, 2019 and December 31, 2018, respectively, of non-Agency mortgage-backed securities and $182.3 million and $224.3 million at September 30, 2019 and December 31, 2018, respectively, of commercial mortgage-backed securities in consolidated VIEs pledged as collateral and eliminated from the Company’s Consolidated Statements of Financial Condition.

[2] ⁽¹⁾  Derived from the audited consolidated financial statements at December 31, 2018.