Resale and Repurchase Agreements (Tables)

3 Months Ended

Mar. 31, 2022

Resale and Repurchase Agreements [Abstract]

Resale and Repurchase Agreements [Table Text Block]

							Gross Amounts Not Offset in the Balance Sheet
(In thousands)	Gross Amount Recognized		Gross Amounts Offset in the Balance Sheet		Net Amounts Presented in the Balance Sheet		Financial Instruments Available for Offset		Securities Collateral Received/Pledged		Unsecured Amount
March 31, 2022
Total resale agreements, subject to master netting arrangements	$	2,025,000	$	(200,000)	$	1,825,000	$	—	$	(1,825,000)	$	—
Total repurchase agreements, subject to master netting arrangements	2,500,146		(200,000)		2,300,146		—		(2,300,146)		—
December 31, 2021
Total resale agreements, subject to master netting arrangements	$	2,025,000	$	(400,000)	$	1,625,000	$	—	$	(1,625,000)	$	—
Total repurchase agreements, subject to master netting arrangements	3,379,582		(400,000)		2,979,582		—		(2,979,582)		—

Schedule of Underlying Assets of Repurchase Agreements [Table Text Block]

	Remaining Contractual Maturity of the Agreements
(In thousands)	Overnight and continuous		Up to 90 days		Greater than 90 days		Total
March 31, 2022
Repurchase agreements, secured by:
U.S. government and federal agency obligations	$	353,708	$	23,631	$	6,258	$	383,597
Agency mortgage-backed securities	1,572,433		1,207		209,245		1,782,885
Non-agency mortgage-backed securities	24,953		—		—		24,953
Asset-backed securities	290,783		—		—		290,783
Other debt securities	17,928		—		—		17,928
Total repurchase agreements, gross amount recognized	$	2,259,805	$	24,838	$	215,503	$	2,500,146
December 31, 2021
Repurchase agreements, secured by:
U.S. government and federal agency obligations	$	600,866	$	33,373	$	9,259	$	643,498
Agency mortgage-backed securities	1,844,652		3,908		400,250		2,248,810
Non-agency mortgage-backed securities	32,299		—		—		32,299
Asset-backed securities	422,525		—		—		422,525
Other debt securities	32,450		—		—		32,450
Total repurchase agreements, gross amount recognized	$	2,932,792	$	37,281	$	409,509	$	3,379,582