Transfers of financial assets and mortgage servicing assets (Tables)

3 Months Ended

Mar. 31, 2018

Transfers and Servicing of Financial Assets

Schedule Of Securitizations Of Financial Assets Accounted For As Sale [Text Block]

		Proceeds Obtained During the Quarter Ended March 31, 2018
(In thousands)	Level 1		Level 2		Level 3		Initial Fair Value
Assets
Debt securities available for sale:
Mortgage-backed securities - FNMA	$	-	$	5,722	$	-	$	5,722
Total debt securities available-for-sale	$	-	$	5,722	$	-	$	5,722
Trading account debt securities:
Mortgage-backed securities - GNMA	$	-	$	112,495	$	-	$	112,495
Mortgage-backed securities - FNMA		-		20,025		-		20,025
Total trading account debt securities	$	-	$	132,520	$	-	$	132,520
Mortgage servicing rights	$	-	$	-	$	2,415	$	2,415
Total	$	-	$	138,242	$	2,415	$	140,657

		Proceeds Obtained During the Quarter Ended March 31, 2017
(In thousands)	Level 1		Level 2		Level 3		Initial Fair Value
Assets
Debt securities available for sale:
Mortgage-backed securities - FNMA	$	-	$	4,752	$	-	$	4,752
Total debt securities available-for-sale	$	-	$	4,752	$	-	$	4,752
Trading account debt securities:
Mortgage-backed securities - GNMA	$	-	$	146,977	$	-	$	146,977
Mortgage-backed securities - FNMA		-		22,891		-		22,891
Total trading account debt securities	$	-	$	169,868	$	-	$	169,868
Mortgage servicing rights	$	-	$	-	$	2,470	$	2,470
Total	$	-	$	174,620	$	2,470	$	177,090

Schedule Of Servicing Assets At Fair Value Text Block

Residential MSRs
(In thousands)	March 31, 2018		March 31, 2017
Fair value at beginning of period	$	168,031	$	196,889
Additions		2,557		2,763
Changes due to payments on loans[1]		(3,335)		(4,587)
Reduction due to loan repurchases		(972)		(644)
Changes in fair value due to changes in valuation model inputs or assumptions		-		(723)
Fair value at end of period	$	166,281	$	193,698
[1] Represents changes due to collection / realization of expected cash flows over time.

Schedule Of Assumptions For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Servicing Liabilities Text Block

	Quarters ended
	March 31, 2018		March 31, 2017
Prepayment speed	5.6	%	4.4	%
Weighted average life (in years)	9.1		10.9
Discount rate (annual rate)	10.8	%	11.0	%

Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets

		Originated MSRs						Purchased MSRs
		March 31,			December 31,			March 31,			December 31,
(In thousands)		2018			2017			2018			2017
Fair value of servicing rights		$	71,837		$	73,951		$	94,444		$	94,080
Weighted average life (in years)			7.6			7.3			6.8			6.5
Weighted average prepayment speed (annual rate)			4.5	%		5.1	%		5.1	%		5.7	%
	Impact on fair value of 10% adverse change	$	(1,333)		$	(1,503)		$	(1,830)		$	(2,070)
	Impact on fair value of 20% adverse change	$	(2,630)		$	(2,976)		$	(3,608)		$	(3,999)
Weighted average discount rate (annual rate)			11.5	%		11.5	%		11.0	%		11.0	%
	Impact on fair value of 10% adverse change	$	(3,171)		$	(3,091)		$	(3,980)		$	(3,785)
	Impact on fair value of 20% adverse change	$	(6,106)		$	(5,971)		$	(7,671)		$	(7,235)