Fair Value (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Assets Measured at Fair Value on 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, 2017
Mortgage-backed securities	$	3,262,017	$	-	$	3,262,017	$	-
Margin posted on derivative agreements		13,220		13,220		-		-
Interest rate swaps		11,034		-		11,034		-
TBA securities		(2,236)		-		(2,236)		-
December 31, 2016
Mortgage-backed securities	$	3,022,174	$	-	$	3,022,174	$	-
Margin posted on derivative agreements		9,865		9,865		-		-
Interest rate swaps		9,500		-		9,500		-
TBA securities		(1,117)		-		(1,117)		-