Mortgage-Backed Securities (Tables)

3 Months Ended

Mar. 31, 2015

Mortgage Backed Securities [Abstract]

Schedule of Mortgage-Backed Securities Reconciliation

(in thousands)
		March 31, 2015		December 31, 2014
Pass-Through RMBS Certificates:
	Hybrid Adjustable-rate Mortgages	$	69,619	$	70,400
	Adjustable-rate Mortgages		3,755		3,794
	Fixed-rate Mortgages		1,522,833		1,412,593
	Total Pass-Through Certificates		1,596,207		1,486,787
Structured RMBS Certificates:
	Interest-Only Securities		65,232		46,611
	Inverse Interest-Only Securities		15,182		15,773
	Total Structured RMBS Certificates		80,414		62,384
Total		$	1,676,621	$	1,549,171

Schedule Of Mortgage-Backed Securities by Contractual Maturity

(in thousands)
	March 31, 2015		December 31, 2014
Greater than five years and less than ten years	$	766	$	967
Greater than or equal to ten years		1,675,855		1,548,204
Total	$	1,676,621	$	1,549,171