FHLB Advances and Other Borrowings (Tables)

12 Months Ended

Sep. 30, 2020

Federal Home Loan Banks [Abstract]

Maturity dates of outstanding FHLB advances

The table below shows the contractual maturity dates of outstanding FHLB advances.

	September 30, 2020		September 30, 2019
	(In thousands)
FHLB advances
Within 1 year	$	1,830,000	$	950,000
1 to 3 years	520,000		750,000
3 to 5 years	350,000		400,000
More than 5 years	—		150,000
	$	2,700,000	$	2,250,000

Weighted average cost and amount of advances

Financial information pertaining to the weighted-average cost and the amount of FHLB advances were as follows.

	2020			2019			2018
	($ in thousands)
Weighted average interest rate, including cash flow hedges, at end of year	1.79		%	2.49		%	2.66		%
Weighted daily average interest rate, including cash flow hedges, during the year	2.03		%	2.69		%	2.62		%
Daily average of FHLB advances during the year	$	2,532,596		$	2,533,890		$	2,384,795
Maximum amount of FHLB advances at any month end	$	3,050,000		$	2,665,000		$	2,620,000
Interest expense during the year (including swap interest income and expense)	$	51,445		$	68,190		$	62,452