Deposits and Borrowed Funds (Tables)

12 Months Ended

Sep. 30, 2016

Deposits and Borrowed Funds [Abstract]

FHLB Advances

	2016			2015
	(Dollars in thousands)
Fixed-rate FHLB advances	$	2,375,000		$	2,575,000
Deferred prepayment penalty	(2,611		)	(4,479		)
	$	2,372,389		$	2,570,521
Weighted average contractual interest rate on FHLB advances	2.17		%	2.09		%
Weighted average effective interest rate on FHLB advances(1)	2.24			2.24

(1) The effective interest rate includes the net impact of deferred amounts related to certain FHLB advances.

Maturity of Borrowed Funds and Certificates of Deposit

	FHLB		Repurchase		Certificates
	Advances		Agreements		of Deposit
	Amount		Amount		Amount
	(Dollars in thousands)
2017	$	500,000	$	—	$	1,172,398
2018	375,000		100,000		562,007
2019	400,000		—		492,691
2020	250,000		100,000		454,991
2021	550,000		—		143,761
Thereafter	300,000		—		2,284
	$	2,375,000	$	200,000	$	2,828,132