Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Sep. 30, 2017

Quarterly Financial Information Disclosure [Abstract]

Summary of unaudited interim results

The following is a summary of the unaudited interim results of operations by quarter for the years presented.

Twelve Months Ended September 30, 2017	First Quarter		Second Quarter			Third Quarter		Fourth Quarter
	(In thousands, except per share data)
Interest income	$	132,764	$	136,198		$	137,716	$	142,240
Interest expense	29,612		28,471			29,101		29,808
Net interest income	103,152		107,727			108,615		112,432
Provision (release) for loan losses	—		(1,600		)	—		(500		)
Other operating income (including REO gain (loss), net)	12,294		10,931			13,798		16,686
Other operating expense	54,341		57,467			57,062		62,649
Income before income taxes	61,105		62,791			65,351		66,969
Income tax expense	19,859		20,721			21,239		20,865
Net income	$	41,246	$	42,070		$	44,112	$	46,104
Basic earnings per share	$	0.46	$	0.47		$	0.49	$	0.53
Diluted earnings per share	0.46		0.47			0.49		0.52
Cash dividends paid per share	0.14		0.40			0.15		0.15

Twelve Months Ended September 30, 2016	First Quarter		Second Quarter			Third Quarter			Fourth Quarter
	(In thousands, except per share data)
Interest income	$	135,124	$	135,063		$	133,735		$	132,872
Interest expense	28,255		28,738			29,495			30,056
Net interest income	106,869		106,325			104,240			102,816
Provision (release) for loan losses	—		(1,500		)	(1,650		)	(3,100		)
Other operating income (REO expense)	12,055		14,623			15,573			14,830
Other operating expense	64,509		59,226			56,305			55,407
Income before income taxes	54,415		63,222			65,158			65,339
Income tax expense	19,317		21,499			22,154			21,115
Net income	$	35,098	$	41,723		$	43,004		$	44,224
Basic earnings per share	$	0.38	$	0.45		$	0.47		$	0.49
Diluted earnings per share	0.38		0.45			0.47			0.49
Cash dividends paid per share	0.13		0.14			0.14			0.14