FAIR VALUE (Tables)

3 Months Ended

9 Months Ended

Mar. 31, 2018

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Schedule of financial assets (liabilities) measured at fair value on a recurring basis

(in thousands)
				Quoted Prices
				in Active		Significant
				Markets for		Other		Significant
				Identical		Observable		Unobservable
		Fair Value		Assets		Inputs		Inputs
		Measurements		(Level 1)		(Level 2)		(Level 3)
March 31, 2018
Mortgage-backed securities	$	3,745,784	$	-	$	3,745,784	$	-
Interest rate swaps		25,107		-		25,107		-
Interest rate swaptions		11,056		-		11,056		-
TBA securities		(2,566)		-		(2,566)		-
December 31, 2017
Mortgage-backed securities	$	3,744,811	$	-	$	3,744,811	$	-
Interest rate swaps		13,530		-		13,530		-
Interest rate swaptions		3,405		-		3,405		-
TBA securities		(1,813)		-		(1,813)		-

The following table presents financial assets (liabilities) measured at fair value on a recurring basis as of March 31, 2018 and December 31, 2017: