Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of fair value assets and liabilities measured on recurring basis

The following tables present the assets and liabilities reported on the consolidated balance sheets at their fair values as of March 31, 2018 and September 30, 2017, by level within the fair value hierarchy:

	March 31, 2018
			Fair value measurements
	Fair value		Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
	(In thousands)
Measured on a recurring basis:
Securities available-for-sale:
U.S. government and agency obligations	$	53,897	53,897	—	$	—
Mortgage-backed securities and collateralized mortgage obligations	735,199		—	735,199	—
Municipal obligations	1,295		—	1,295	—
Corporate debt securities	54,012		—	54,012	—
Trust preferred securities	4,652		—	4,652	—
Equity securities	3,158		3,158	—	—
Total securities available-for-sale	$	852,213	57,055	795,158	$	—
Derivative assets	669		—	669	—
	$	852,882	57,055	795,827	$	—

	September 30, 2017
			Fair value measurements
	Fair value		Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
	(In thousands)
Measured on a recurring basis:
Securities available-for-sale:
U.S. government and agency obligations	$	24,873	24,873	—	$	—
Mortgage-backed securities and collateralized mortgage obligations	473,491		—	473,491	—
Municipal obligations	1,357		—	1,357	—
Corporate debt securities	49,493		—	49,493	—
Trust preferred securities	4,708		—	4,708	—
Equity securities	3,254		3,254	—	—
Total securities available-for-sale	557,176		28,127	529,049	—
Derivative assets	277		—	277	—
	$	557,453	28,127	529,326	$	—
Derivative liabilities	$	182	—	182	$	—

Schedule of fair value assets and liabilities measured on non-recurring basis

	March 31, 2018
			Fair value measurements
	Fair value		Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
	(In thousands)
Measured on a non-recurring basis:
Real estate owned	$	959	—	—	$	959
Loans measured for impairment based on the fair value of the underlying collateral	9,449		—	—	9,449
	$	10,408	—	—	$	10,408

	September 30, 2017
			Fair value measurements
	Fair value		Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
	(In thousands)
Measured on a non-recurring basis:
Real estate owned	$	393	—	—	$	393
Loans measured for impairment based on the fair value of the underlying collateral	14,156				14,156
	$	14,549	—	—	$	14,549

Schedule of qualitatie information for Level 3 assets measured at fair value on a non-recurring basis

The following table presents qualitative information for Level 3 assets measured at fair value on a non-recurring basis as of March 31, 2018 and September 30, 2017:

	March 31, 2018
	Fair value		Valuation methodology	Unobservable inputs	Range of inputs
	(In Thousands)
Real estate owned	$	959	Appraised Value	Discount for cost to sell	6.0%
Loans measured for impairment based on the fair value of the underlying collateral	$	9,449	Appraised Value	Discount for cost to sell	6.0% - 8.0%

	September 30, 2017
	Fair value		Valuation methodology	Unobservable inputs	Range of inputs
	(In Thousands)
Real estate owned	$	393	Appraised Value	Discount for cost to sell	6.0%
Loans measured for impairment based on the fair value of the underlying collateral	$	14,156	Appraised Value	Discount for cost to sell	6.0% - 8.0%

Schedule of fair value assets and liabilities on Consolidated Balance Sheets

The following tables present the assets and liabilities reported on the consolidated balance sheets at their fair values as of March 31, 2018 and September 30, 2017:

	March 31, 2018
			Fair Value Instruments
	Carrying Value		Total Fair Value	Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
	(In thousands)
Financial assets:
Cash and cash equivalents	$	634,381	634,381	634,381	—	$	—
Securities available-for-sale	852,213		852,213	57,055	795,158	—
Securities held-to-maturity	254,131		245,477	—	245,477	—
Federal Home Loan Bank stock	29,381		29,381	—	29,381	—
Loans receivable, net	4,479,919		4,390,761	—	—	4,390,761
Derivative assets	669		669	—	669	—
Financial liabilities:			—
Total deposits	$	5,395,253	5,382,310	—	5,382,310	$	—
Borrowings	589,430		532,051	—	532,051	—

	September 30, 2017
			Fair Value Instruments
	Carrying Value		Total Fair Value	Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
	(In thousands)
Financial assets:
Cash and cash equivalents	$	100,975	100,975	100,975	—	$	—
Securities available-for-sale	557,176		557,176	28,127	529,049	—
Securities held-to-maturity	132,939		131,822	—	131,822	—
Federal Home Loan Bank Stock	35,844		35,844	—	35,844	—
Loans receivable, net	4,307,623		4,301,138	—	—	4,301,138
Derivative assets	277		277	—	277	—
Financial liabilities:			—
Total deposits	$	4,123,428	3,880,363	—	3,880,363	$	—
Borrowings	733,043		732,731	—	732,731	—
Derivative liabilities	182		182	—	182	—