10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2018

or

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 001-34654

WASHINGTON FEDERAL, INC.

(Exact name of registrant as specified in its charter)

Washington	91-1661606
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
425 Pike Street Seattle, Washington 98101
(Address of principal executive offices and zip code)
(206) 624-7930
(Registrant’s telephone number, including area code)

(Former name, former address and former fiscal year, if changed since last report.)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 ("Exchange Act") during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	x	Accelerated filer	o
Non-accelerated filer	o	Smaller reporting company	o
Emerging growth company	o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  o    No  x

APPLICABLE ONLY TO CORPORATE ISSUERS

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

Title of class:	July 24, 2018
Common stock, $1.00 par value	83,537,545

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

PART I
Item 1.	Financial Statements (Unaudited)
	The Consolidated Financial Statements of Washington Federal, Inc. and Subsidiaries filed as a part of the report are as follows:
	Consolidated Statements of Financial Condition as of June 30, 2018 and September 30, 2017	3
	Consolidated Statements of Operations for the three and nine months ended June 30, 2018 and June 30, 2017	4
	Consolidated Statements of Comprehensive Income for the three and nine months ended June 30, 2018 and June 30, 2017	5
	Consolidated Statements of Stockholders' Equity for the nine months ended June 30, 2018 and June 30, 2017	6
	Consolidated Statements of Cash Flows for the nine months ended June 30, 2018 and June 30, 2017	7
	Notes to Interim Consolidated Financial Statements	9
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	35
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	46
Item 4.	Controls and Procedures	46
PART II
Item 1.	Legal Proceedings	47
Item 1A.	Risk Factors	47
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	48
Item 3.	Defaults Upon Senior Securities	48
Item 4.	Mine Safety Disclosures	48
Item 5.	Other Information	48
Item 6.	Exhibits	48
	Signatures	49

2

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION

(UNAUDITED)

	June 30, 2018			September 30, 2017
	(In thousands, except share data)
ASSETS
Cash and cash equivalents	$	345,919		$	313,070
Available-for-sale securities, at fair value	1,255,401			1,266,209
Held-to-maturity securities, at amortized cost	1,670,450			1,646,856
Loans receivable, net of allowance for loan losses of $128,666 and $123,073	11,325,971			10,882,622
Interest receivable	43,670			41,643
Premises and equipment, net	269,674			263,694
Real estate owned	11,275			20,658
FHLB and FRB stock	128,790			122,990
Bank owned life insurance	214,752			211,330
Intangible assets, including goodwill of $301,368 and $293,153	311,796			298,682
Federal and state income tax assets, net	4,293			—
Other assets	184,330			185,826
	$	15,766,321		$	15,253,580
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities
Customer accounts
Transaction deposit accounts	$	6,572,766		$	6,361,158
Time deposit accounts	4,714,707			4,473,850
	11,287,473			10,835,008
FHLB advances	2,370,000			2,225,000
Advance payments by borrowers for taxes and insurance	32,632			56,631
Accrued expenses and other liabilities	89,953			131,253
	13,780,058			13,247,892
Stockholders’ equity
Common stock, $1.00 par value, 300,000,000 shares authorized; 135,343,437 and 134,957,511 shares issued; 83,534,098 and 87,193,362 shares outstanding	135,344			134,958
Additional paid-in capital	1,665,421			1,660,885
Accumulated other comprehensive income (loss), net of taxes	8,137			5,015
Treasury stock, at cost; 51,809,339 and 47,764,149 shares	(975,001		)	(838,060		)
Retained earnings	1,152,362			1,042,890
	1,986,263			2,005,688
	$	15,766,321		$	15,253,580

SEE NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

3

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(UNAUDITED)

	Three Months Ended June 30,					Nine Months Ended June 30,
	2018		2017			2018			2017
	(In thousands, except share data)					(In thousands, except share data)
INTEREST INCOME
Loans receivable	$	131,541	$	117,457		$	382,581		$	348,326
Mortgage-backed securities	18,022		15,992			52,588			45,007
Investment securities and cash equivalents	5,509		4,267			14,762			13,345
	155,072		137,716			449,931			406,678
INTEREST EXPENSE
Customer accounts	18,887		12,764			49,939			38,173
FHLB advances	16,333		16,337			47,104			49,011
	35,220		29,101			97,043			87,184
Net interest income	119,852		108,615			352,888			319,494
Provision (release) for loan losses	1,000		—			50			(1,600		)
Net interest income after provision (release) for loan losses	118,852		108,615			352,838			321,094
OTHER INCOME
Gain on sale of investment securities	—		—			—			968
FDIC loss share valuation adjustments	—		—			(8,550		)	—
Loan fee income	1,094		889			2,909			3,310
Deposit fee income	6,411		5,714			19,500			15,803
Other income	4,946		7,319			17,974			15,873
	12,451		13,922			31,833			35,954
OTHER EXPENSE
Compensation and benefits	31,223		28,947			92,467			84,774
Occupancy	9,095		8,829			26,779			26,370
FDIC insurance premiums	2,950		2,842			8,622			8,591
Product delivery	4,356		3,246			11,977			10,096
Information technology	10,118		6,617			26,828			19,754
Other expense	9,235		6,581			28,032			19,285
	66,977		57,062			194,705			168,870
Gain (loss) on real estate owned, net	168		(124		)	(64		)	1,069
Income before income taxes	64,494		65,351			189,902			189,247
Income tax expense	13,100		21,239			37,567			61,819
NET INCOME	$	51,394	$	44,112		$	152,335		$	127,428
PER SHARE DATA
Basic earnings per share	$	0.61	$	0.49		$	1.78		$	1.43
Diluted earnings per share	0.61		0.49			1.78			1.42
Dividends paid on common stock per share	0.17		0.15			0.49			0.69
Basic weighted average number of shares outstanding	84,168,992		89,199,823			85,589,588			89,297,471
Diluted weighted average number of shares outstanding	84,252,659		89,497,264			85,698,888			89,653,955

SEE NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

4

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(UNAUDITED)

	Three Months Ended June 30,						Nine Months Ended June 30,
	2018			2017			2018			2017
	(In thousands)						(In thousands)
Net income	$	51,394		$	44,112		$	152,335		$	127,428
Other comprehensive income (loss) net of tax:
Net unrealized gain (loss) on available-for-sale investment securities	(4,851		)	3,171			(18,282		)	(8,224		)
Reclassification adjustment of net gain (loss) from sale of available-for-sale securities included in net income	—			—			—			968
Related tax benefit (expense)	1,104			(1,165		)	5,506			2,667
	(3,747		)	2,006			(12,776		)	(4,589		)
Net unrealized gain (loss) on cash flow hedges of borrowings	3,865			(2,856		)	20,887			28,810
Related tax benefit (expense)	(879		)	1,049			(4,989		)	(10,587		)
	2,986			(1,807		)	15,898			18,223
Other comprehensive income (loss) net of tax	(761		)	199			3,122			13,634
Comprehensive income	$	50,633		$	44,311		$	155,457		$	141,062

SEE NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

5

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(UNAUDITED)

(in thousands)	Common Stock		Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Treasury Stock			Total
Balance at October 1, 2017	$	134,958	$	1,660,885		$	1,042,890		$	5,015		$	(838,060	)	$	2,005,688
Adjustment pursuant to adoption of ASU 2018-02	—		—			(1,772		)	1,772			—			—
Net income	—		—			152,335			—			—			152,335
Other comprehensive income (loss)	—		—			—			1,350			—			1,350
Dividends on common stock	—		—			(41,091		)	—			—			(41,091		)
Proceeds from exercise of common stock options	60		1,228			—			—			—			1,288
Restricted stock expense	215		3,419			—			—			—			3,634
Exercise of stock warrants	111		(111		)										—
Treasury stock acquired	—		—			—			—			(136,941		)	(136,941		)
Balance at June 30, 2018	$	135,344	$	1,665,421		$	1,152,362		$	8,137		$	(975,001	)	$	1,986,263
(in thousands)	Common Stock		Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Treasury Stock			Total
Balance at October 1, 2016	$	134,308	$	1,648,388		$	943,877		$	(11,156	)	$	(739,686	)	$	1,975,731
Net income	—		—			127,428			—			—			127,428
Other comprehensive income (loss)	—		—			—			13,634			—			13,634
Dividends on common stock	—		—			(61,341		)	—			—			(61,341		)
Proceeds from exercise of common stock options	309		6,769			—			—			—			7,078
Restricted stock expense	105		5,021			—			—			—			5,126
Exercise of stock warrants	225		(225		)	—			—			—			—
Treasury stock acquired	—		—			—			—			(46,470		)	(46,470		)
Balance at June 30, 2017	$	134,947	$	1,659,953		$	1,009,964		$	2,478		$	(786,156	)	$	2,021,186

SEE NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

6

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

	Nine Months Ended June 30,
	2018			2017
	(In thousands)
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	152,335		$	127,428
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and accretion expense, net	38,980			29,602
Cash received from (paid to) FDIC under loss share agreements, net	1,595			813
Stock based compensation expense	3,634			5,126
Provision (release) for loan losses	50			(1,600		)
Loss (gain) on sale of investment securities	—			(968		)
Decrease (increase) in accrued interest receivable	(2,027		)	(1,257		)
Decrease (increase) in federal and state income tax receivable	(4,293		)	16,047
Decrease (increase) in cash surrender value of bank owned life insurance	(4,490		)	(4,907		)
Gain on bank owned life insurance	(2,416		)	(4,983		)
Net realized (gain) loss on sales of premises, equipment, and real estate owned	(1,333		)	(1,691		)
Decrease (increase) in other assets	(878		)	6,618
Increase (decrease) in accrued expenses and other liabilities	(40,862		)	(47,859		)
Net cash provided by (used in) operating activities	140,295			122,369
CASH FLOWS FROM INVESTING ACTIVITIES
Origination of loans and principal repayments, net	(308,167		)	(668,413		)
Loans purchased	(143,605		)	(72,856		)
FHLB & FRB stock purchased	(408,800		)	(93,009		)
FHLB & FRB stock redeemed	403,000			85,224
Available-for-sale securities purchased	(166,696		)	—
Principal payments and maturities of available-for-sale securities	156,240			290,243
Proceeds from sales of available-for-sale securities	—			350,890
Held-to-maturity securities purchased	(170,836		)	(415,729		)
Principal payments and maturities of held-to-maturity securities	143,837			176,333
Proceeds from sales of real estate owned	11,960			13,780
Proceeds from settlement of bank owned life insurance	3,484			6,913
Cash paid for acquisitions	(2,211		)	—
Proceeds from sales of premises and equipment	1			3,956
Premises and equipment purchased and REO improvements	(22,604		)	(9,541		)
Net cash provided by (used in) investing activities	(504,397		)	(332,209		)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in customer accounts	452,694			33,654
Proceeds from borrowings	10,220,000			2,325,000
Repayments of borrowings	(10,075,000		)	(2,130,000		)
Proceeds from exercise of common stock options and related tax benefit	1,288			7,078
Dividends paid on common stock	(41,091		)	(61,341		)
Treasury stock purchased	(136,941		)	(46,470		)
Increase (decrease) in borrower advances related to taxes and insurance, net	(23,999		)	(9,197		)
Net cash provided by (used in) financing activities	396,951			118,724
Increase (decrease) in cash and cash equivalents	32,849			(91,116		)
Cash and cash equivalents at beginning of period	313,070			450,368
Cash and cash equivalents at end of period	$	345,919		$	359,252

(CONTINUED)

SEE NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

7

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

	Nine Months Ended June 30,
	2018		2017
	(In thousands)
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Non-cash investing activities
Real estate acquired through foreclosure	$	1,517	$	2,323
Non-cash financing activities
Stock issued upon exercise of warrants	3,836		7,546
Cash paid during the period for
Interest	95,394		82,919
Income taxes	34,160		33,228

SEE NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

8

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

NOTE A – Summary of Significant Accounting Policies

Nature of Operations - Washington Federal, Inc. (the "Company") is a Washington corporation headquartered in Seattle, Washington. The Company is a bank holding company that conducts its operations through its national bank subsidiary, Washington Federal, National Association (the "Bank"). The Bank is principally engaged in the business of attracting deposits from businesses and the general public and investing these funds, together with borrowings and other funds, in one-to-four family residential mortgage and construction loans, home equity loans, lines of credit, commercial real estate loans, commercial and industrial loans, multi-family and other forms of real estate loans. As used throughout this document, the terms "Washington Federal" or the "Company" refer to Washington Federal, Inc. and its consolidated subsidiaries and the term "Bank" refers to the operating subsidiary Washington Federal, National Association.

Basis of Presentation - The Company has prepared the consolidated unaudited interim financial statements included in this report. All intercompany transactions and accounts have been eliminated in consolidation. The preparation of financial statements, in conformity with accounting principles generally accepted in the United States of America (“GAAP”), requires management to make estimates and assumptions that affect amounts reported in the financial statements. Actual results could differ from these estimates. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation are reflected in the interim financial statements. Certain amounts in the financial statements from prior periods have been reclassified to conform to the current financial statement presentation.

The information included in this Form 10-Q should be read in conjunction with the financial statements and related notes in the Company's 2017 Annual Report on Form 10-K (“2017 Annual Financial Statements”). Interim results are not necessarily indicative of results for a full year.

During the nine months endedJune 30, 2018, an immaterial correction was recorded related to acquisitions of insurance agency businesses in prior years. The balance sheet classification correction resulted in an increase in goodwill of $7,135,000 and finite-lived intangible assets of $5,106,000 and a corresponding decrease in other assets of $12,241,000.

Summary of Significant Accounting Policies - The significant accounting policies used in preparation of the Company's consolidated financial statements are disclosed in its 2017 Annual Financial Statements. There have not been any material changes in the Company's significant accounting policies compared to those contained in its 2017 Annual Financial Statements for the year ended September 30, 2017.

Off-Balance-Sheet Credit Exposures - The only material off-balance-sheet credit exposures are loans in process and unused lines of credit, which had a combined balance of $2,161,343,000 and $1,992,905,000 at June 30, 2018 and September 30, 2017, respectively. The Company estimates losses on off-balance-sheet credit exposures by allocating a loss percentage derived from historical loss factors for each asset class.

NOTE B – New Accounting Pronouncements

In August 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The ASU expands and refines hedge accounting for both financial and non-financial risk components, aligns the recognition and presentation of the effects of hedging instruments and hedge items in the financial statements, and includes certain targeted improvements to ease the application of current guidance related to the assessment of hedge effectiveness. The effective date of the new standard for public companies is for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The new standard must be adopted using a modified retrospective transition with a cumulative effect adjustment recorded to opening retained earnings as of the initial adoption date. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities. The ASU shortens the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The ASU is effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December

9

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

15, 2018. Early adoption is permitted, including adoption in an interim period. If an entity early adopts in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In February 2017, the FASB issued ASU 2017-05, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets. The ASU clarifies that a financial asset is within the scope of Subtopic 610-20 if it meets the definition of an in substance nonfinancial asset. The amendments also define the term in substance nonfinancial asset. The amendments clarify that nonfinancial assets within the scope of Subtopic 610-20 may include nonfinancial assets transferred within a legal entity to a counterparty. A contract that includes the transfer of ownership interests in one or more consolidated subsidiaries is within the scope of Subtopic 610-20 if substantially all of the fair value of the assets that are promised to the counterparty in a contract is concentrated in nonfinancial assets. The amendments clarify that an entity should identify each distinct nonfinancial asset or in substance nonfinancial asset promised to a counterparty and derecognize each asset when a counterparty obtains control of it. The ASU is effective for public business entities for annual periods beginning after December 15, 2017, and interim periods therein. Entities may use either a full or modified approach to adopt the ASU. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash: a Consensus of the FASB Emerging Issues Task Force. This ASU requires a company’s cash flow statement to explain the changes during a reporting period of the totals for cash, cash equivalents, restricted cash, and restricted cash equivalents. Additionally, amounts for restricted cash and restricted cash equivalents are to be included with cash and cash equivalents if the cash flow statement includes a reconciliation of the total cash balances for a reporting period. This ASU is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2017, with early application permitted. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments. The amendments in this ASU address eight specific cash flow issues with the objective of reducing diversity in practice. The specific issues identified include: debt prepayments or extinguishment costs; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (including bank-owned life insurance policies); distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. This ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period; however, early adoption is permitted. The Company is currently evaluating the guidance to determine its adoption method and does not expect this guidance to have a material impact on its consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses. The amendments in this ASU were issued to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments that are not accounted for at fair value through net income, including loans held for investment, held-to-maturity debt securities, trade and other receivables, net investments in leases and other commitments to extend credit held by a reporting entity at each reporting date. The amendments require that financial assets measured at amortized cost be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The ASU eliminates the current framework of recognizing probable incurred losses and instead requires an entity to use its current estimate of all expected credit losses over the contractual life. The measurement of expected credit losses is based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the financial assets.

For purchased financial assets with a more-than-insignificant amount of credit deterioration since origination (“PCD assets”) that are measured at amortized cost, an allowance for expected credit losses is recorded as an adjustment to the cost basis of the asset. Subsequent changes in estimated cash flows would be recorded as an adjustment to the allowance and through the statement of income.

Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down to the security's cost basis.

10

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The amendments in this ASU are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. For most debt securities, the transition approach requires a cumulative-effect adjustment to the statement of financial position as of the beginning of the first reporting period the guidance is effective. For other-than-temporarily impaired debt securities and PCD assets, the guidance will be applied prospectively. While the Company is currently in the process of evaluating the impact of the amended guidance on its consolidated financial statements, it currently expects the ALLL to increase upon adoption given that the allowance will be required to cover the full remaining expected life of the portfolio upon adoption, rather than the incurred loss model under current U.S. GAAP. The extent of this increase is still being evaluated and will depend on economic conditions and the composition of the Company’s loan and lease portfolio at the time of adoption.

In February 2016, the FASB issued ASU 2016-02, Leases. The amendments require lessees to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, and a right-of-use asset, which is an asset that represents the lessee's right to use, or control the use of, a specified asset for the lease term. The guidance also simplifies the accounting for sale and leaseback transactions. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application is permitted upon issuance. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. The Company is currently in the process of accumulating the lease data necessary to apply the amended guidance. The Company is continuing to evaluate the impact of the amended guidance on its consolidated financial statements, but the effects of recognizing most operating leases is not expected to be material. The Company expects to recognize right-of-use assets and lease liabilities for substantially all of its operating lease commitments based on the present value of unpaid lease payments as of the date of adoption.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, to require all equity investments to be measured at fair value with changes in the fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee). The amendments in this ASU also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. This ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. The Company does not expect this guidance to have a material impact on its consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The guidance in this update supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the industry topics of the codification. For public companies, this update was to be effective for interim and annual periods beginning after December 15, 2016. However, in August 2015, the FASB issued ASU 2015-14, which delayed the effective date of ASU 2014-09 by one year and permits companies to voluntarily adopt the new standard as of the original effective date. The Company does not expect this guidance to have a material impact on its consolidated financial statements.

NOTE C – Dividends and Share Repurchases

On May 25, 2018, the Company paid a regular dividend on common stock of $0.17 per share, which represented the 141st consecutive quarterly cash dividend. Dividends per share were $0.17 and $0.15 for the quarters ended June 30, 2018 and 2017, respectively. On July 23, 2018, the Company declared a regular dividend on common stock of $0.18 per share, which represents its 142nd consecutive quarterly cash dividend. This dividend will be paid on August 24, 2018 to common shareholders of record on August 10, 2018.

For the three months endedJune 30, 2018, the Company repurchased 1,224,384 shares at an average price of $32.64. During the three months endedJune 30, 2018, 2,329 shares of common stock were issued to investors holding warrants previously issued as part of the 2008 Troubled Asset Relief Program ("TARP"). As of June 30, 2018, 107,617 of these warrants remain outstanding. Net of warrant cash repurchase activity, there are 2,855,765 remaining shares authorized to be repurchased under the current Board approved share repurchase program.

NOTE D – Loans Receivable

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NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following table is a summary of loans receivable.

	June 30, 2018				September 30, 2017
	(In thousands)				(In thousands)
Gross loans by category
Single-family residential	$	5,745,598	45.1	%	$	5,711,004	46.8	%
Construction	1,885,034		14.8		1,597,996		13.1
Construction - custom	612,688		4.8		602,631		4.9
Land - acquisition & development	150,936		1.2		124,308		1.0
Land - consumer lot loans	103,118		0.8		104,405		0.9
Multi-family	1,346,534		10.6		1,303,148		10.7
Commercial real estate	1,435,418		11.3		1,434,610		11.8
Commercial & industrial	1,133,075		8.9		1,093,360		9.0
HELOC	136,766		1.1		144,850		1.2
Consumer	188,125		1.5		85,075		0.7
Total gross loans	12,737,292		100	%	12,201,387		100	%
Less:
Allowance for loan losses	128,666				123,073
Loans in process	1,230,132				1,149,934
Net deferred fees, costs and discounts	52,523				45,758
Total loan contra accounts	1,411,321				1,318,765
Net loans	$	11,325,971			$	10,882,622

The following table sets forth information regarding non-accrual loans.

	June 30, 2018					September 30, 2017
	(In thousands, except ratio data)
Non-accrual loans:
Single-family residential	$	26,119		43.1	%	$	27,930		56.3	%
Construction	1,841			3.0		—			—
Construction - custom	—			—		91			0.2
Land - acquisition & development	1,757			2.9		296			0.6
Land - consumer lot loans	642			1.1		605			1.2
Multi-family	—			—		139			0.3
Commercial real estate	9,684			16.0		11,815			23.8
Commercial & industrial	19,876			32.8		8,082			16.3
HELOC	637			1.1		531			1.1
Consumer	28			—		91			0.2
Total non-accrual loans	$	60,584		100	%	$	49,580		100	%
% of total net loans	0.53		%			0.46		%

The Company recognized interest income on non-accrual loans of approximately $3,926,000 in the nine months endedJune 30, 2018. Had these loans been on accrual status and performed according to their original contract terms, the Company would have recognized interest income of approximately $1,741,000 for the nine months endedJune 30, 2018. Recognized interest income for the nine months endedJune 30, 2018 was higher than what otherwise would have been collected in the period due to the collection of past due amounts. Interest cash flows collected on non-accrual loans vary from period to period as those loans are brought current or are paid off.

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following tables provide details regarding delinquent loans.

June 30, 2018	Loans Receivable		Days Delinquent Based on $ Amount of Loans										% based on $
Type of Loan	Net of Loans In Process		Current		30		60		90		Total Delinquent
	(In thousands, except ratio data)
Single-family residential	$	5,744,620	$	5,714,962	$	7,201	$	4,521	$	17,936	$	29,658	0.52	%
Construction	1,012,239		1,009,782		—		616		1,841		2,457		0.24
Construction - custom	285,858		285,687		171		—		—		171		0.06
Land - acquisition & development	121,508		119,593		—		270		1,645		1,915		1.58
Land - consumer lot loans	103,040		102,303		128		301		308		737		0.72
Multi-family	1,346,512		1,346,512		—		—		—		—		—
Commercial real estate	1,435,417		1,433,030		684		—		1,703		2,387		0.17
Commercial & industrial	1,133,075		1,126,480		—		—		6,595		6,595		0.58
HELOC	136,766		135,406		863		146		351		1,360		0.99
Consumer	188,125		187,773		125		127		100		352		0.19
Total Loans	$	11,507,160	$	11,461,528	$	9,172	$	5,981	$	30,479	$	45,632	0.40	%
Delinquency %			99.60%		0.08%		0.05%		0.26%		0.40%

September 30, 2017	Loans Receivable		Days Delinquent Based on $ Amount of Loans										% based on $
Type of Loan	Net of Loans In Process		Current		30		60		90		Total Delinquent
	(In thousands, except ratio data)
Single-family residential	$	5,709,690	$	5,671,933	$	10,925	$	4,810	$	22,022	$	37,757	0.66	%
Construction	793,959		793,959		—		—		—		—		—
Construction - custom	277,599		277,508		—		—		91		91		0.03
Land - acquisition & development	104,856		104,526		—		—		330		330		0.31
Land - consumer lot loans	104,335		103,389		112		680		154		946		0.91
Multi-family	1,303,119		1,302,720		5		255		139		399		0.03
Commercial real estate	1,434,610		1,432,052		507		—		2,051		2,558		0.18
Commercial & industrial	1,093,360		1,092,735		—		51		574		625		0.06
HELOC	144,850		143,974		221		342		313		876		0.60
Consumer	85,075		84,644		245		107		79		431		0.51
Total Loans	$	11,051,453	$	11,007,440	$	12,015	$	6,245	$	25,753	$	44,013	0.40	%
Delinquency %			99.60%		0.11%		0.06%		0.23%		0.40%

The percentage of total delinquent loans was 0.40% as of June 30, 2018 and 0.40% as of September 30, 2017. There are no loans greater than 90 days delinquent and still accruing interest as of either date.

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NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following table provides information related to loans restructured in a troubled debt restructuring ("TDR") during the periods presented:

	Three Months Ended June 30,
	2018					2017
		Pre-Modification		Post-Modification			Pre-Modification		Post-Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number of	Recorded		Recorded		Number of	Recorded		Recorded
	Contracts	Investment		Investment		Contracts	Investment		Investment
		($ in thousands)					($ in thousands)
Troubled Debt Restructurings:
Single-family residential	5	$	714	$	714	11	$	1,836	$	1,836
HELOC	1	75		75		—	—		—
	6	$	789	$	789	11	$	1,836	$	1,836

	Nine Months Ended June 30,
	2018					2017
		Pre-Modification		Post-Modification			Pre-Modification		Post-Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number of	Recorded		Recorded		Number of	Recorded		Recorded
	Contracts	Investment		Investment		Contracts	Investment		Investment
		($ in thousands)					($ in thousands)
Troubled Debt Restructurings:
Single-family residential	25	$	4,909	$	4,909	31	$	5,682	$	5,682
Land - consumer lot loans	—	—		—		1	204		204
Commercial & Industrial	3	7,256		7,256		—	—		—
HELOC	1	75		75		1	228		228
	29	$	12,240	$	12,240	33	$	6,114	$	6,114

The following table provides information on payment defaults occurring during the periods presented where the loan had been modified in a TDR within 12 months of the payment default.

	Three Months Ended June 30,
	2018			2017
	Number of	Recorded		Number of	Recorded
	Contracts	Investment		Contracts	Investment
	($ in thousands)			($ in thousands)
Trouble Debt Restructurings That Subsequently Defaulted:
Single-family residential	—	$	—	3	$	401
	—	$	—	3	$	401

14

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

	Nine Months Ended June 30,
	2018			2017
	Number of	Recorded		Number of	Recorded
	Contracts	Investment		Contracts	Investment
	($ in thousands)			($ in thousands)
Troubled Debt Restructurings That Subsequently Defaulted:
Single-family residential	2	$	206	16	$	3,586
Commercial real estate	—	—		2	267
	2	$	206	18	$	3,853

Most loans restructured in TDRs are accruing and performing loans where the borrower has proactively approached the Company about modification due to temporary financial difficulties. As of June 30, 2018, 96.7% of the Company's $171,603,000 in TDRs were classified as performing. Each request for modification is individually evaluated for merit and likelihood of success. The concession granted in a loan modification is typically a payment reduction through a rate reduction of between 100 to 200 basis points for a specific term, usually six to twenty four months. Interest-only payments may also be approved during the modification period. Principal forgiveness is not an available option for restructured loans. As of June 30, 2018, single-family residential loans comprised 89.4% of TDRs.

The Company reserves for restructured loans within its allowance for loan loss methodology by taking into account the following performance indicators: 1) time since modification, 2) current payment status and 3) geographic area.

In May 2018, the Bank entered into an agreement with the FDIC to early terminate its remaining FDIC loss share agreements, which relate to the Horizon Bank and Home Valley Bank acquisitions. The Bank paid $39,906,000 to settle the FDIC clawback liability and this amount is consistent with the liability on the balance sheet as of March 31, 2018 so no additional gain or loss was recorded in the three months endedJune 30, 2018. Under the termination agreement, all rights and obligations of the Bank and the FDIC have been resolved and completed. As such, future recoveries, gains, losses and expenses related to the previously covered assets will now be recognized entirely by the Bank and the FDIC will no longer share in such gains or losses.

15

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

NOTE E – Allowance for Losses on Loans

The following tables summarize the activity in the allowance for loan losses.

Three Months Ended June 30, 2018	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	34,144	$	(299	)	$	283	$	273		$	34,401
Construction	27,389		—			—		2,744			30,133
Construction - custom	2,081		—			—		(67		)	2,014
Land - acquisition & development	7,622		(12		)	2,699		(2,609		)	7,700
Land - consumer lot loans	2,853		(1		)	35		20			2,907
Multi-family	7,982		—			—		109			8,091
Commercial real estate	11,588		—			91		(100		)	11,579
Commercial & industrial	29,330		(3,317		)	433		1,069			27,515
HELOC	802		—			—		9			811
Consumer	3,785		(45		)	223		(448		)	3,515
	$	127,576	$	(3,674	)	$	3,764	$	1,000		$	128,666

Three Months Ended June 30, 2017	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	37,164	$	(267	)	$	81	$	1,133		$	38,111
Construction	25,061		—			—		(3,195		)	21,866
Construction - custom	1,176		—			—		714			1,890
Land - acquisition & development	6,669		—			863		(315		)	7,217
Land - consumer lot loans	2,513		—			118		(83		)	2,548
Multi-family	7,929		—			—		(17		)	7,912
Commercial real estate	10,772		—			164		411			11,347
Commercial & industrial	28,365		—			154		653			29,172
HELOC	826		—			1		50			877
Consumer	1,447		(144		)	282		(296		)	1,289
	$	121,922	$	(411	)	$	1,663	$	(945	)	$	122,229

16

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Nine Months Ended June 30, 2018	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	36,892	$	(1,049	)	$	615	$	(2,057	)	$	34,401
Construction	24,556		—			—		5,577			30,133
Construction - custom	1,944		(50		)	—		120			2,014
Land - acquisition & development	6,829		(12		)	7,278		(6,395		)	7,700
Land - consumer lot loans	2,649		(67		)	35		290			2,907
Multi-family	7,862		—			—		229			8,091
Commercial real estate	11,818		(36		)	92		(295		)	11,579
Commercial & industrial	28,524		(3,433		)	603		1,821			27,515
HELOC	855		(1		)	—		(43		)	811
Consumer	1,144		(217		)	785		1,803			3,515
	$	123,073	$	(4,865	)	$	9,408	$	1,050		$	128,666

Nine Months Ended June 30, 2017	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	37,796	$	(763	)	$	455	$	623		$	38,111
Construction	19,838		—			—		2,028			21,866
Construction - custom	1,080		(3		)	—		813			1,890
Land - acquisition & development	6,023		(63		)	9,092		(7,835		)	7,217
Land - consumer lot loans	2,535		(17		)	368		(338		)	2,548
Multi-family	6,925		—			—		987			7,912
Commercial real estate	8,588		(11		)	1,684		1,086			11,347
Commercial & industrial	28,008		(163		)	1,096		231			29,172
HELOC	813		(90		)	2		152			877
Consumer	1,888		(798		)	975		(776		)	1,289
	$	113,494	$	(1,908	)	$	13,672	$	(3,029	)	$	122,229

The Company recorded a provision for loan losses of $1,000,000 for the three months endedJune 30, 2018, compared to no provision for loan losses for the three months endedJune 30, 2017. A provision for loan losses of $50,000 and a release of allowance for loan losses of $1,600,000 was recorded during the nine months endedJune 30, 2018 and June 30, 2017, respectively. Reserving for new loan originations as the loan portfolio grows has been largely offset by recoveries of previously charged-off loans. Recoveries, net of charge-offs, totaled $90,000 for the three months endedJune 30, 2018, compared to net recoveries of $1,252,000 during the three months endedJune 30, 2017. Recoveries, net of charge-offs, totaled $4,543,000 for the nine months endedJune 30, 2018, compared to net recoveries of $11,764,000 during the nine months endedJune 30, 2017.

Non-performing assets were $71,859,000, or 0.46%, of total assets at June 30, 2018, compared to $70,238,000, or 0.46%, of total assets at September 30, 2017. Non-accrual loans were $60,584,000 at June 30, 2018, compared to $49,580,000 at September 30, 2017. Delinquencies, as a percent of total loans, were 0.40% at June 30, 2018, compared to 0.40% at September 30, 2017.

The reserve for unfunded commitments was $6,750,000 as of June 30, 2018, which is a decrease from $7,750,000 at September 30, 2017.

Management believes the allowance for loan losses plus the reserve for unfunded commitments, totaling $135,416,000, or 1.06% of gross loans as of June 30, 2018, is sufficient to absorb estimated losses inherent in the portfolio of loans and unfunded commitments.

17

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following tables show loans collectively and individually evaluated for impairment and the related allocation of general and specific reserves.

June 30, 2018	Loans Collectively Evaluated for Impairment						Loans Individually Evaluated for Impairment
	Allowance Allocation		Recorded Investment of Loans		Ratio		Allowance Allocation		Recorded Investment of Loans		Ratio
	(In thousands, except ratio data)						(In thousands, except ratio data)
Single-family residential	$	34,401	$	5,726,737	0.6	%	$	—	$	24,139	—	%
Construction	30,133		1,007,676		3.0		—		4,563		—
Construction - custom	2,014		285,858		0.7		—		—		—
Land - acquisition & development	7,700		118,323		6.5		—		3,184		—
Land - consumer lot loans	2,907		97,310		3.0		—		833		—
Multi-family	8,086		1,343,468		0.6		5		3,045		0.2
Commercial real estate	11,502		1,388,029		0.8		77		31,805		0.2
Commercial & industrial	27,515		1,087,664		2.5		—		45,400		—
HELOC	811		134,522		0.6		—		562		—
Consumer	3,515		188,004		1.9		—		26		—
	$	128,584	$	11,377,591	1.1	%	$	82	$	113,557	0.1	%

September 30, 2017	Loans Collectively Evaluated for Impairment						Loans Individually Evaluated for Impairment
	Allowance Allocation		Recorded Investment of Loans		Ratio		Allowance Allocation		Recorded Investment of Loans		Ratio
	(In thousands, except ratio data)						(In thousands, except ratio data)
Single-family residential	$	36,892	$	5,713,576	0.7	%	$	—	$	5,552	—	%
Construction	24,556		793,958		3.1		—		—		—
Construction - custom	1,944		277,495		0.7		—		105		—
Land - acquisition & development	6,828		104,767		6.5		1		89		1.0
Land - consumer lot loans	2,649		96,337		2.8		—		171		—
Multi-family	7,857		1,302,625		0.6		5		493		1.0
Commercial real estate	11,698		1,391,668		0.8		120		21,765		0.6
Commercial & industrial	28,524		1,093,210		2.6		—		81		—
HELOC	855		141,689		0.6		—		215		—
Consumer	1,144		84,887		1.4		—		82		—
	$	122,947	$	11,000,212	1.1	%	$	126	$	28,553	0.4	%

As of June 30, 2018, $128,584,000 of the allowance was calculated under the Company's general allowance methodology and the remaining $82,000 was specific reserves on loans deemed to be individually impaired. As of September 30, 2017, $122,947,000 of the allowance was calculated under the Company's general allowance methodology and the remaining $126,000 was specific reserves on loans deemed to be individually impaired.

The Company has an asset quality review function that analyzes its loan portfolio and reports the results of the review to its Board of Directors on a quarterly basis. The single-family residential, HELOC and consumer portfolios are evaluated based on their performance as a pool of loans, since no single loan is individually significant or judged by its risk rating, size or potential risk of loss. The construction, land, multi-family, commercial real estate and commercial and industrial loans are risk rated on a loan by

18

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

loan basis to determine the relative risk inherent in specific borrowers or loans. Based on that risk rating, the loans are assigned a grade and classified as follows:

• Pass – the credit does not meet one of the definitions below.

• Special mention – A special mention credit is considered to be currently protected from loss but is potentially weak. No loss of principal or interest is foreseen; however, proper supervision and management attention is required to deter further deterioration in the credit. Assets in this category constitute some undue and unwarranted credit risk but not to the point of justifying a risk rating of substandard. The credit risk may be relatively minor yet constitutes an unwarranted risk in light of the circumstances surrounding a specific asset.

• Substandard – A substandard credit is an unacceptable credit. Additionally, repayment in the normal course is in jeopardy due to the existence of one or more well defined weaknesses. In these situations, loss of principal is likely if the weakness is not corrected. A substandard asset is inadequately protected by the current sound worth and paying capacity of the borrower or of the collateral pledged, if any. Assets so classified will have a well-defined weakness or weaknesses that jeopardize the collection or liquidation of the debt. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets risk rated substandard.

• Doubtful – A credit classified doubtful has all the weaknesses inherent in one classified substandard with the added characteristic that the weakness makes collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The probability of loss is high, but because of certain important and reasonably specific pending factors that may work to the advantage and strengthening of the asset, its classification as an estimated loss is deferred until its more exact status may be determined. Pending factors include proposed merger, acquisition, or liquidation procedures, capital injection, perfecting liens on additional collateral, and refinancing plans.

• Loss – Credits classified loss are considered uncollectible and of such little value that their continuance as a bankable asset is not warranted. This classification does not mean that the asset has absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off this asset even though partial recovery may be affected in the future. Losses should be taken in the period in which they are identified as uncollectible. Partial charge-off versus full charge-off may be taken if the collateral offers some identifiable protection.

19

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following tables provide information on loans based on risk rating categories as defined above.

June 30, 2018	Internally Assigned Grade
	Pass			Special mention			Substandard			Doubtful			Loss			Total Gross Loans
	(In thousands, except ratio data)
Loan type
Single-family residential	$	5,713,075		$	—		$	32,523		$	—		$	—		$	5,745,598
Construction	1,880,415			55			4,564			—			—			1,885,034
Construction - custom	612,688			—			—			—			—			612,688
Land - acquisition & development	147,864			—			3,072			—			—			150,936
Land - consumer lot loans	102,476			—			642			—			—			103,118
Multi-family	1,343,950			—			2,584			—			—			1,346,534
Commercial real estate	1,402,581			4,900			27,937			—			—			1,435,418
Commercial & industrial	1,084,175			9,582			39,318			—			—			1,133,075
HELOC	136,122			—			644			—			—			136,766
Consumer	188,093			—			32			—			—			188,125
Total gross loans	$	12,611,439		$	14,537		$	111,316		$	—		$	—		$	12,737,292
Total grade as a % of total gross loans	99.0		%	0.1		%	0.9		%	—		%	—		%

September 30, 2017	Internally Assigned Grade
	Pass			Special mention			Substandard			Doubtful			Loss			Total Gross Loans
	(In thousands, except ratio data)
Loan type
Single-family residential	$	5,671,229		$	—		$	39,775		$	—		$	—		$	5,711,004
Construction	1,594,926			—			3,070			—			—			1,597,996
Construction - custom	602,540			—			91			—			—			602,631
Land - acquisition & development	123,028			207			1,073			—			—			124,308
Land - consumer lot loans	103,787			—			618			—			—			104,405
Multi-family	1,295,261			5,795			2,092			—			—			1,303,148
Commercial real estate	1,391,996			5,944			36,670			—			—			1,434,610
Commercial & industrial	1,054,972			14,814			23,574			—			—			1,093,360
HELOC	144,229			—			621			—			—			144,850
Consumer	84,984			—			91			—			—			85,075
Total gross loans	$	12,066,952		$	26,760		$	107,675		$	—		$	—		$	12,201,387
Total grade as a % of total gross loans	98.9		%	0.2		%	0.9		%	—		%	—		%

20

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following tables provide information on gross loans based on borrower payment activity.

June 30, 2018	Performing Loans				Non-Performing Loans
	Amount		% of Total Gross  Loans		Amount		% of Total Gross  Loans
	(In thousands, except ratio data)
Single-family residential	$	5,719,479	99.5	%	$	26,119	0.5	%
Construction	1,883,193		99.9		1,841		0.1
Construction - custom	612,688		100.0		—		—
Land - acquisition & development	149,179		98.8		1,757		1.2
Land - consumer lot loans	102,476		99.4		642		0.6
Multi-family	1,346,534		100.0		—		—
Commercial real estate	1,425,734		99.3		9,684		0.7
Commercial & industrial	1,113,199		98.2		19,876		1.8
HELOC	136,129		99.5		637		0.5
Consumer	188,097		100.0		28		—
	$	12,676,708	99.5	%	$	60,584	0.5	%

September 30, 2017	Performing Loans				Non-Performing Loans
	Amount		% of Total Gross  Loans		Amount		% of Total Gross  Loans
	(In thousands, except ratio data)
Single-family residential	$	5,683,074	99.5	%	$	27,930	0.5	%
Construction	1,597,996		100.0		—		—
Construction - custom	602,540		99.9		91		0.1
Land - acquisition & development	124,012		99.8		296		0.2
Land - consumer lot loans	103,800		99.4		605		0.6
Multi-family	1,303,009		99.9		139		0.1
Commercial real estate	1,422,795		99.2		11,815		0.8
Commercial & industrial	1,085,278		99.3		8,082		0.7
HELOC	144,319		99.6		531		0.4
Consumer	84,984		99.9		91		0.1
	$	12,151,807	99.6	%	$	49,580	0.4	%

21

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following tables provide information on impaired loan balances and the related allowances by loan types.

June 30, 2018	Recorded Investment		Unpaid Principal Balance		Related Allowance			Average Recorded Investment (Year-To-Date)
	(In thousands)
Impaired loans with no related allowance recorded:
Single-family residential	$	22,114	$	23,310	$	—		$	21,944
Construction	4,843		4,933		—			2,928
Construction - custom	—		—		—			37
Land - acquisition & development	3,073		3,120		—			1,741
Land - consumer lot loans	455		490		—			337
Multi-family	2,606		2,606		—			1,403
Commercial real estate	26,818		31,372		—			22,338
Commercial & industrial	35,427		35,736		—			19,507
HELOC	562		655		—			486
Consumer	26		68		—			56
	95,924		102,290		—			70,777
Impaired loans with an allowance recorded:
Single-family residential	153,356		156,644		2,792			167,211
Land - acquisition & development	—		—		—			23
Land - consumer lot loans	5,136		5,502		—			6,832
Multi-family	461		461		5			477
Commercial real estate	7,162		7,975		77			11,492
Commercial & industrial	3,924		6,964		—			4,547
HELOC	1,491		1,575		—			1,500
Consumer	73		73		—			87
	171,603		179,194		2,874		(1)	192,169
Total impaired loans:
Single-family residential	175,470		179,954		2,792			189,155
Construction	4,843		4,933		—			2,928
Construction - custom	—		—		—			37
Land - acquisition & development	3,073		3,120		—			1,764
Land - consumer lot loans	5,591		5,992		—			7,169
Multi-family	3,067		3,067		5			1,880
Commercial real estate	33,980		39,347		77			33,830
Commercial & industrial	39,351		42,700		—			24,054
HELOC	2,053		2,230		—			1,986
Consumer	99		141		—			143
	$	267,527	$	281,484	$	2,874	(1)	$	262,946

(1) Includes $82,000 of specific reserves and $2,792,000 included in the general reserves.

22

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

September 30, 2017	Recorded Investment		Unpaid Principal Balance		Related Allowance			Average Recorded Investment (Year-To-Date)
	(In thousands)
Impaired loans with no related allowance recorded:
Single-family residential	$	21,325	$	23,880	$	—		$	19,371
Construction - custom	148		165		—			231
Land - acquisition & development	330		8,208		—			176
Land - consumer lot loans	208		330		—			431
Multi-family	139		3,231		—			748
Commercial real estate	12,890		22,487		—			11,466
Commercial & industrial	8,279		14,321		—			7,425
HELOC	490		1,212		—			487
Consumer	88		1,433		—			57
	43,897		75,267		—			40,392
Impaired loans with an allowance recorded:
Single-family residential	181,941		186,167		4,030			204,723
Land - acquisition & development	90		90		1			576
Land - consumer lot loans	7,949		8,526		—			8,976
Multi-family	493		493		5			1,024
Commercial real estate	15,079		16,707		120			16,991
Commercial & industrial	—		—		—			297
HELOC	1,728		1,806		—			1,451
Consumer	97		284		—			100
	207,377		214,073		4,156		(1)	234,138
Total impaired loans:
Single-family residential	203,266		210,047		4,030			224,094
Construction - custom	148		165		—			231
Land - acquisition & development	420		8,298		1			752
Land - consumer lot loans	8,157		8,856		—			9,407
Multi-family	632		3,724		5			1,772
Commercial real estate	27,969		39,194		120			28,457
Commercial & industrial	8,279		14,321		—			7,722
HELOC	2,218		3,018		—			1,938
Consumer	185		1,717		—			157
	$	251,274	$	289,340	$	4,156	(1)	$	274,530

(1) Includes $126,000 of specific reserves and $4,030,000 included in the general reserves.

23

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

NOTE F – Fair Value Measurements

FASB ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active exchange markets that the entity has the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active and other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

The Company has established and documented the process for determining the fair values of its assets and liabilities, where applicable. Fair value is based on quoted market prices, when available, for identical or similar assets or liabilities. In the absence of quoted market prices, fair value is determined using valuation models or third-party appraisals. The following is a description of the valuation methodologies used to measure and report the fair value of financial assets and liabilities on a recurring or nonrecurring basis.

Measured on a Recurring Basis

Available-for-Sale Securities and Derivative Contracts

Securities available for sale are recorded at fair value on a recurring basis. The fair value of debt securities are priced using model pricing based on the securities' relationship to other benchmark quoted prices as provided by an independent third party, and under GAAP are considered a Level 2 input method. Securities that are traded on active exchanges, including the Company's equity securities, are measured using the closing price in an active market and are considered a Level 1 input method.

The Company offers interest rate swaps to its variable rate borrowers who want to manage their interest rate risk. At the same time, the Company enters into the opposite trade with a counter party to offset its interest rate risk. The Company has also entered into commercial loan hedges as well as borrowings hedges using interest rate swaps. The fair value of these interest rate swaps are estimated by a third party pricing service using a discounted cash flow technique. These are considered a Level 2 input method.

24

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following tables present the balance of assets and liabilities measured at fair value on a recurring basis.

	June 30, 2018
	Level 1		Level 2		Level 3		Total
	(In thousands)
Financial Assets
Available-for-sale securities:
Equity securities	$	491	$	—	$	—	$	491
U.S. government and agency securities	—		216,009		—		216,009
Municipal bonds	—		22,755		—		22,755
Corporate debt securities	—		184,232		—		184,232
Mortgage-backed securities
Agency pass-through certificates	—		828,449		—		828,449
Commercial MBS	—		3,465		—		3,465
Total available-for-sale securities	491		1,254,910		—		1,255,401
Interest rate contracts	—		10,141		—		10,141
Commercial loan hedges	—		3,005		—		3,005
Borrowings hedges	—		19,193		—		19,193
Total financial assets	$	491	$	1,287,249	$	—	$	1,287,740
Financial Liabilities
Interest rate contracts	$	—	$	10,141	$	—	$	10,141
Total financial liabilities	$	—	$	10,141	$	—	$	10,141

There were no transfers between, into and/or out of Levels 1, 2 or 3 during the nine months endedJune 30, 2018.

25

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

	September 30, 2017
	Level 1		Level 2		Level 3		Total
	(In thousands)
Financial Assets
Available-for-sale securities:
Equity securities	$	522	$	—	$	—	$	522
U.S. government and agency securities	—		211,077		—		211,077
Municipal bonds	—		26,624		—		26,624
Corporate debt securities	—		185,298		—		185,298
Mortgage-backed securities
Agency pass-through certificates	—		834,297		—		834,297
Commercial MBS	—		8,391		—		8,391
Total available-for-sale securities	522		1,265,687		—		1,266,209
Interest rate contracts	—		1,139		—		1,139
Total financial assets	$	522	$	1,266,826	$	—	$	1,267,348
Financial Liabilities
Interest rate contracts	$	—	$	1,139	$	—	$	1,139
Commercial loan hedges	—		174		—		174
Borrowings hedges	—		1,693		—		1,693
Total financial liabilities	$	—	$	3,006	$	—	$	3,006

There were no transfers between, into and/or out of Levels 1, 2 or 3 during the fiscal year ended September 30, 2017.

26

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Measured on a Nonrecurring Basis

Impaired Loans & Real Estate Owned

Real estate owned ("REO") consists principally of properties acquired through foreclosure. From time to time, and on a nonrecurring basis, adjustments using fair value measurements are recorded to reflect increases or decreases based on the discounted cash flows, the current appraisal or estimated value of the collateral, but only up to the fair value of the real estate owned as of the initial transfer date less selling costs.

When management determines that the fair value of the collateral or the real estate owned requires additional adjustments, either as a result of an updated appraised value or when there is no observable market price, the Company classifies the impaired loan or real estate owned as Level 3. Level 3 assets recorded at fair value on a nonrecurring basis at June 30, 2018 included loans for which a specific reserve allowance was established or a partial charge-off was recorded based on the fair value of collateral, as well as real estate owned where the fair value of the property was less than the cost basis.

The following tables present the aggregated balance of assets that were measured at fair value on a nonrecurring basis at June 30, 2018 and June 30, 2017, and the total gains (losses) resulting from those fair value adjustments for the three and nine months endedJune 30, 2018 and June 30, 2017. The estimated fair value measurements are shown gross of estimated selling costs.

	June 30, 2018								Three Months Ended June 30, 2018			Nine Months Ended June 30, 2018
	Level 1		Level  2		Level  3		Total		Total Gains (Losses)
	(In thousands)								(In thousands)
Impaired loans (1)	$	—	$	—	$	15,125	$	15,125	$	(3,120	)	$	(4,094	)
Real estate owned (2)	—		—		6,354		6,354		(97		)	(656		)
Balance at end of period	$	—	$	—	$	21,479	$	21,479	$	(3,217	)	$	(4,750	)

(1) The gains (losses) represent remeasurements of collateral-dependent loans.

(2) The gains (losses) represent aggregate writedowns and charge-offs on REO.

	June 30, 2017								Three Months Ended June 30, 2017			Nine Months Ended June 30, 2017
	Level 1		Level  2		Level  3		Total		Total Gains (Losses)
	(In thousands)								(In thousands)
Impaired loans (1)	$	—	$	—	$	7,807	$	7,807	$	(305	)	$	(1,666	)
Real estate owned (2)	—		—		9,777		9,777		(467		)	(1,087		)
Balance at end of period	$	—	$	—	$	17,584	$	17,584	$	(772	)	$	(2,753	)

(1) The gains (losses) represent remeasurements of collateral-dependent loans.

(2) The gains (losses) represent aggregate writedowns and charge-offs on REO.

Impaired loans - The Company adjusts the carrying amount of impaired loans when there is evidence of probable loss and the expected fair value of the loan is less than its contractual amount. The amount of the impairment may be determined based on the estimated present value of future cash flows or the fair value of the underlying collateral. Impaired loans with a specific reserve allowance based on cash flow analysis or the value of the underlying collateral are classified as Level 3 assets.

The evaluations for impairment are prepared by the Company's Problem Loan Review Committee, which is chaired by the Chief Credit Officer and includes the Loan Review manager and Special Credits manager, as well as senior credit officers, division managers and group executives, as applicable. These evaluations are performed in conjunction with the quarterly allowance for loan loss process.

27

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Applicable loans included in the previous quarter's review are reevaluated and if their values are materially different from the prior quarter evaluation, the underlying information (loan balance and collateral value) are compared. Material differences are evaluated for reasonableness and discussions are held between the relationship manager and their division manager to understand the difference and determine if any adjustment is necessary.

The inputs are developed and substantiated on a quarterly basis, based on current borrower developments, market conditions and collateral values. The following methods are used to value impaired loans:

• The fair value of the collateral, which may take the form of real estate or personal property, is based on internal estimates, field observations, assessments provided by third-party appraisers and other valuation models. The Company performs or reaffirms valuations of collateral-dependent impaired loans at least annually. Adjustments are made if management believes that more recent information is available and relevant with respect to the fair value of the collateral.

• The present value of the expected future cash flows of the loans is used for measurement of non-collateral-dependent loans to test for impairment.

Real estate owned - When a loan is reclassified from loan status to real estate owned due to the Company taking possession of the collateral, a special credits officer, along with the special credits manager, obtains a valuation, which may include appraisals or third-party price opinions, which is used to establish the fair value of the underlying collateral. The determined fair value, less selling costs, becomes the carrying value of the REO asset.

The fair value of REO assets is re-evaluated quarterly and the REO asset is adjusted to reflect the fair value as necessary. After foreclosure, the valuations are updated periodically and current market conditions may require the assets to be written down further or up to the cost basis established on the date of transfer. The carrying balance of REO assets are also written down once a bona fide offer is contractually accepted, through execution of a purchase and sale agreement, where the accepted price is lower than the cost established on the transfer date.

Fair Values of Financial Instruments

FASB ASC 825 requires disclosure of fair value information about financial instruments, whether or not recognized on the statement of financial condition, for which it is practicable to estimate those values. Certain financial instruments and all non-financial instruments are excluded from the disclosure requirements. Accordingly, the aggregate fair value estimates presented do not reflect the underlying fair value of the Company. Although management is not aware of any factors that would materially affect the estimated fair value amounts presented below, such amounts have not been comprehensively revalued for purposes of these financial statements since the dates shown, and therefore, estimates of fair value subsequent to those dates may differ significantly from the amounts presented below.

28

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

		June 30, 2018				September 30, 2017
	Level in Fair Value Hierarchy	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
		($ in thousands)
Financial assets
Cash and cash equivalents	1	$	345,919	$	345,919	$	313,070	$	313,070
Available-for-sale securities
Equity securities	1	491		491		522		522
U.S. government and agency securities	2	216,009		216,009		211,077		211,077
Municipal bonds	2	22,755		22,755		26,624		26,624
Corporate debt securities	2	184,232		184,232		185,298		185,298
Mortgage-backed securities
Agency pass-through certificates	2	828,449		828,449		834,297		834,297
Commercial MBS	2	3,465		3,465		8,391		8,391
Total available-for-sale securities		1,255,401		1,255,401		1,266,209		1,266,209
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	2	1,655,450		1,595,034		1,646,856		1,635,913
Commercial MBS	2	15,000		15,000		—		—
Total held-to-maturity securities		1,670,450		1,610,034		1,646,856		1,635,913
Loans receivable	3	11,325,971		11,492,022		10,882,622		11,247,586
FDIC indemnification asset	3	—		—		8,968		8,564
FHLB and FRB stock	2	128,790		128,790		122,990		122,990
Other assets - interest rate contracts	2	10,141		10,141		1,139		1,139
Other assets - commercial loan hedges	2	3,005		3,005		—		—
Other assets - borrowings hedges	2	19,193		19,193		—		—
Financial liabilities
Customer accounts	2	11,287,473		10,924,562		10,835,008		10,411,686
FHLB advances	2	2,370,000		2,365,478		2,225,000		2,266,791
Other liabilities - interest rate contracts	2	10,141		10,141		1,139		1,139
Other liabilities - commercial loan hedges	2	—		—		174		174
Other liabilities - borrowings hedges	2	—		—		1,693		1,693

The following methods and assumptions were used to estimate the fair value of financial instruments:

Cash and cash equivalents – The carrying amount of these items is a reasonable estimate of their fair value.

Available-for-sale securities and held-to-maturity securities – Securities at fair value are primarily priced using model pricing based on the securities' relationship to other benchmark quoted prices as provided by an independent third party, and are considered a Level 2 input method. Equity securities that are exchange traded are considered a Level 1 input method.

Loans receivable – For certain homogeneous categories of loans, such as fixed- and variable-rate residential mortgages, fair value is estimated for securities backed by similar loans, adjusted for differences in loan characteristics, using the same methodology described above for AFS and HTM securities. The fair value of other loan types is estimated by discounting the future cash flows and estimated prepayments using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining term. Some loan types were valued at carrying value because of their floating rate or expected maturity characteristics. Net deferred loan fees are not included in the fair value calculation but are included in the carrying amount.

FHLB and FRB stock – The fair value is based upon the par value of the stock that equates to its carrying value.

29

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Customer accounts – The fair value of demand deposits, savings accounts, and money market accounts is the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit is estimated by discounting the estimated future cash flows using the rates currently offered for deposits with similar remaining maturities.

FHLB advances – The fair value of FHLB advances and other borrowings is estimated by discounting the estimated future cash flows using rates currently available to the Company for debt with similar remaining maturities.

Interest rate contracts – The Company offers interest rate swaps to its variable rate borrowers who want to manage their interest rate risk. At the same time, the Company enters into the opposite trade with a counterparty to offset its interest rate risk. The fair value of these interest rate swaps is estimated by a third party pricing service using a discounted cash flow technique.

Commercial loan hedges – The fair value of the interest rate swaps is estimated by a third party pricing service using a discounted cash flow technique.

Borrowings hedges – The fair value of the interest rate swaps is estimated by a third party pricing service using a discounted cash flow technique.

The following tables provide a reconciliation of amortized cost to fair value of available-for-sale and held-to-maturity securities.

	June 30, 2018
	Amortized Cost		Gross Unrealized					Fair Value		Yield
			Gains		Losses
	($ in thousands)
Available-for-sale securities
U.S. government and agency securities due
5 to 10 years	$	63,986	$	—	$	(1,678	)	$	62,308	2.41	%
Over 10 years	153,928		122		(349		)	153,701		2.71
Equity securities due
1 to 5 years	500		—		(9		)	491		1.80
Corporate debt securities due
1 to 5 years	113,727		1,687		(273		)	115,141		3.60
5 to 10 years	69,964		—		(873		)	69,091		3.23
Municipal bonds due
1 to 5 years	1,390		—		(10		)	1,380		2.05
Over 10 years	20,328		1,047		—			21,375		6.45
Mortgage-backed securities
Agency pass-through certificates	836,777		1,563		(9,891		)	828,449		3.34
Commercial MBS	3,460		5		—			3,465		4.27
	1,264,060		4,424		(13,083		)	1,255,401		3.28
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	1,655,450		635		(61,051		)	1,595,034		3.16
Commercial MBS	15,000		—		—			15,000		2.94
	1,670,450		635		(61,051		)	1,610,034		3.16
	$	2,934,510	$	5,059	$	(74,134	)	$	2,865,435	3.21	%

30

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

	September 30, 2017
	Amortized Cost		Gross Unrealized						Fair Value		Yield
			Gains		Losses
	($ in thousands)
Available-for-sale securities
U.S. government and agency securities due
Within 1 year	$	9,300	$	146		$	—		$	9,446	10.38	%
1 to 5 years	5,688		2			—			5,690		1.51
5 to 10 years	69,108		—			(1,238		)	67,870		1.93
Over 10 years	127,936		353			(218		)	128,071		1.92
Equity securities
1 to 5 years	500		22			—			522		1.80
Corporate bonds due
1 to 5 years	63,622		2,083			—			65,705		2.96
5 to 10 years	119,960		210			(577		)	119,593		2.62
Municipal bonds due
Within 1 year	2,344		10			—			2,354		1.23
1 to 5 years	1,367		55			—			1,422		2.05
Over 10 years	20,343		2,505			—			22,848		6.45
Mortgage-backed securities
Agency pass-through certificates	828,069		8,402			(2,174		)	834,297		2.96
Commercial MBS	8,350		41			—			8,391		3.31
	1,256,587		13,829			(4,207		)	1,266,209		2.86
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	1,646,856		7,143			(18,086		)	1,635,913		3.14
	1,646,856		7,143			(18,086		)	1,635,913		3.14
	$	2,903,443	$	20,972		$	(22,293	)	$	2,902,122	3.02	%

For available-for-sale investment securities, there were no sales during the nine months endedJune 30, 2018 and sales totaling $350,890,000 during the nine months endedJune 30, 2017. There were purchases of $166,696,000 of available-for-sale investment securities during the nine months endedJune 30, 2018 and no purchases during the nine months endedJune 30, 2017. For held-to-maturity investment securities, there were purchases totaling $170,836,000 during the nine months endedJune 30, 2018 and purchases of $415,729,000 during the nine months endedJune 30, 2017. There were no sales of held-to-maturity investment securities during either period. Substantially all of the agency mortgage-backed securities have contractual due dates that exceed 10 years.

The following tables show the unrealized gross losses and fair value of securities as of June 30, 2018 and September 30, 2017, by length of time that individual securities in each category have been in a continuous loss position. The decline in fair value since purchase is attributable to changes in interest rates. Because the Company does not intend to sell these securities and does not consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other than temporarily impaired.

31

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

June 30, 2018	Less than 12 months					12 months or more					Total
	Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value
	(In thousands)
Corporate debt securities	$	—		$	—	$	(1,146	)	$	118,818	$	(1,146	)	118,818
Municipal bonds	(10		)	1,380		—			—		(10		)	1,380
U.S. government and agency securities	(64		)	43,310		(1,963		)	120,006		(2,027		)	163,316
Equity securities	(9		)	491		—			—		(9		)	491
Agency pass-through certificates	(13,696		)	706,627		(57,246		)	1,401,192		(70,942		)	2,107,819
	$	(13,779	)	$	751,808	$	(60,355	)	$	1,640,016	$	(74,134	)	$	2,391,824

September 30, 2017	Less than 12 months					12 months or more					Total
	Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value
	(In thousands)
Corporate debt securities	$	—		$	—	$	(577	)	$	49,423	$	(577	)	$	49,423
U.S. government and agency securities	(759		)	24,400		(697		)	96,195		(1,456		)	120,595
Agency pass-through certificates	(17,683		)	1,163,358		(2,577		)	249,304		(20,260		)	1,412,662
	$	(18,442	)	$	1,187,758	$	(3,851	)	$	394,922	$	(22,293	)	$	1,582,680

32

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

NOTE G – Derivatives and Hedging Activities

The Company periodically enters into certain interest rate swap agreements in order to provide commercial loan customers the ability to convert from variable to fixed interest rate payments, while the Company retains a variable rate loan. Under these agreements, the Company enters into a variable rate loan agreement and a swap agreement with the client. The swap agreement effectively converts the client’s variable rate loan into a fixed rate. The Company enters into a corresponding swap agreement with a third party in order to offset its exposure on the variable and fixed components of the client's swap agreement. The Company had $781,626,000 and $1,035,573,000 notional in interest rate swaps to hedge this exposure as of June 30, 2018 and September 30, 2017, respectively. The interest rate swaps are derivatives under FASB ASC 815, Derivatives and Hedging, with changes in fair value recorded in earnings. There was no net impact to the statement of operations for the nine months endedJune 30, 2018 and 2017 as the changes in value for the asset and liability side of the swaps offset each other.

The Company has entered into interest rate swaps to convert certain existing and future short-term borrowings to fixed rate payments. The primary purpose of these hedges is to mitigate the risk of rising interest rates, specifically LIBOR rates, which are a benchmark for the short-term borrowings. The hedging program qualifies as a cash flow hedge under ASC 815, which provides for offsetting of the recognition of gains and losses of the interest rate swaps and the hedged items. The hedged item is the LIBOR portion of the series of existing or future short-term fixed rate borrowings over the term of the interest rate swap. The change in the fair value of the interest rate swaps is recorded in other comprehensive income. The Company had $700,000,000 notional in interest rate swaps to hedge existing and anticipated future borrowings as of June 30, 2018 and September 30, 2017.

The Company also enters into interest rate swaps to hedge the interest rate risk of individual fixed rate commercial loans and these relationships qualify as fair value hedges under ASC 815, which provides for offsetting of the recognition of gains and losses of the respective interest rate swap and the hedged item. The interest rate swaps in these hedging relationships had a notional amount of $97,927,000 and $52,936,000 as of June 30, 2018 and September 30, 2017, respectively.

The following table presents the fair value and balance sheet classification of derivatives at June 30, 2018 and September 30, 2017:

	Asset Derivatives						Liability Derivatives
	June 30, 2018			September 30, 2017			June 30, 2018			September 30, 2017
	Balance Sheet			Balance Sheet			Balance Sheet			Balance Sheet
	Location	Fair Value		Location	Fair Value		Location	Fair Value		Location	Fair Value
	(In thousands)
Interest rate contracts	Other assets	$	10,141	Other assets	$	1,139	Other liabilities	$	10,141	Other liabilities	$	1,139
Commercial loan hedges	Other assets	3,005		Other assets	—		Other liabilities	—		Other liabilities	174
Borrowings hedges	Other assets	19,193		Other assets	—		Other liabilities	—		Other liabilities	1,693
		$	32,339		$	1,139		$	10,141		$	3,006

33

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

NOTE H – Income Taxes

On December 22, 2017, the U.S. Government enacted significant new tax legislation (the “Tax Act”). For businesses, the Tax Act reduces the corporate federal tax rate from a maximum of 35% to a flat 21% rate. The corporate tax rate reduction was effective January 1, 2018. Because the Company has a fiscal year end of September 30, the reduced corporate tax rate will result in the application of a blended federal statutory tax rate of 24.53% for its fiscal year 2018 and then 21% thereafter.

Under generally accepted accounting principles, the Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled.

At September 30, 2017, the Company’s deferred tax assets and liabilities were determined based on the then-current enacted federal tax rate of 35%. As a result of the reduction in the corporate income tax rate under the Tax Act, the Company revalued its deferred tax assets and liabilities at December 31, 2017. Deferred tax assets and liabilities expected to be realized in fiscal year 2018 were re-measured using the aforementioned blended rate. All remaining deferred tax assets and liabilities were re-measured using the new statutory federal rate of 21%. These re-measurements resulted in a discrete tax benefit estimate of $5,387,000 that was recognized during the nine months endedJune 30, 2018. The Company’s revaluation of its deferred tax assets and liabilities is subject to further clarification of the Tax Act and refinements of its estimates.

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

PART I – Financial Information

Item 2.        Management’s Discussion and Analysis of Financial Condition and Results of Operations

FORWARD LOOKING STATEMENTS

Washington Federal, Inc. (the "Company" or "Washington Federal") makes statements in this Quarterly Report on Form 10-Q that constitute forward-looking statements. Words such as “expects,” “anticipates,” “believes,” “estimates,” “intends,” “forecasts,” “projects” and other similar expressions or future or conditional verbs such as “will,” “should,” “would” and “could” are intended to help identify such forward-looking statements. These statements are not historical facts, but instead represent current expectations, plans or forecasts of the Company and are based on the beliefs and assumptions of the management of the Company and the information available to management at the time that these disclosures were prepared. The Company intends for all such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and the provisions of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements are not guarantees of future results or performance and involve certain risks, uncertainties and assumptions that are difficult to predict and often are beyond the Company's control. Actual outcomes and results may differ materially from those expressed in, or implied by, the Company's forward-looking statements.

You should not place undue reliance on any forward-looking statement and should consider the following uncertainties and risks, as well as the risks and uncertainties discussed elsewhere in this report, including under Item 1A. “Risk Factors,” and in any of the Company's other subsequent Securities and Exchange Commission ("SEC") filings, which could cause the Company's future results to differ materially from the plans, objectives, goals, estimates, intentions and expectations expressed in forward-looking statements:

• a deterioration in economic conditions, including declines in the real estate market and home sale volumes and financial stress on borrowers (consumers and businesses) as a result of the uncertain economic environment;

• the effects of a severe economic downturn, including high unemployment rates and declines in housing prices and property values, in the Company's primary market areas;

• the effects of and changes in monetary and fiscal policies of the Board of Governors of the Federal Reserve System and the U.S. Government;

• fluctuations in interest rate risk and changes in market interest rates;

• the Company's ability to make accurate assumptions and judgments about the collectability of its loan portfolio, including the creditworthiness of its borrowers and the value of the assets securing these loans;

• the Company's ability to successfully complete merger and acquisition activities and realize expected strategic and operating efficiencies associated with such activities;

• legislative and regulatory limitations, including those arising under the Dodd-Frank Act and potential limitations

in the manner in which the Company conducts its business and undertake new investments and activities;

• the ability of the Company to obtain external financing to fund its operations or obtain this financing on favorable terms;

• changes in other economic, competitive, governmental, regulatory and technological factors affecting the Company's markets, operations, pricing, products, services and fees;

• the success of the Company at managing the risks involved in the remediation efforts associated with its Bank Secrecy Act program, costs of enhancements to the Bank’s BSA program are greater than anticipated; and governmental authorities undertake enforcement actions or legal proceedings with respect to the Bank’s BSA program beyond those contemplated by the Consent Order, and the potential impact of such matters on the success, timing and ability to pursue the Company’s growth or other business initiatives;

• the success of the Company at managing the risks involved in the foregoing and managing its business; and

• the timing and occurrence or non-occurrence of events that may be subject to circumstances beyond the Company's control.

All forward-looking statements speak only as of the date on which such statements are made, and the Company undertakes no obligation to update or revise any forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events, changes to future operating results over time, or the impact of circumstances arising after the date the forward-looking statement was made.

GENERAL & BUSINESS DESCRIPTION

Washington Federal, Inc. is a bank holding company headquartered in Seattle, Washington that conducts its operations through Washington Federal, National Association (“Bank”), a federally chartered national bank subsidiary. Washington Federal, Inc. and

35

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

its consolidated subsidiaries are engaged primarily in providing lending, depository, insurance and other banking services to consumers, mid-sized to large businesses, and owners and developers of commercial real estate.

The Company's fiscal year end is September 30^th. All references to 2017 represent balances as of September 30, 2017 or activity for the fiscal year then ended.

INTEREST RATE RISK

Based on management's assessment of the current interest rate environment, the Company has taken steps, including growing shorter-term loans and transaction deposit accounts, to reduce its interest rate risk profile. The mix of transaction and savings accounts is 58% of total deposits as of June 30, 2018 while the composition of the investment securities portfolio is 26% variable and 74% fixed rate. When interest rates rise, the fair value of the investment securities with fixed rates will decrease and vice versa when interest rates decline. The Company has $1,670,450,000 of mortgage-backed securities that it has designated as held-to-maturity and are carried at amortized cost. As of June 30, 2018, the net unrealized loss on these securities was $60,416,000. The Company has $1,255,401,000 of available-for-sale securities that are carried at fair value. As of June 30, 2018, the net unrealized loss on these securities was $8,659,000. The Company has executed interest rate swaps to hedge interest rate risk on certain FHLB borrowings. The unrealized gain on these interest rate swaps as of June 30, 2018 was $19,193,000. All of the above are pre-tax net unrealized gains or losses.

The Company relies on various measures of interest rate risk, including an asset/liability maturity gap analysis, modeling of changes in forecasted net interest income under various rate change scenarios, and the impact of interest rate changes on the net portfolio value (“NPV”) of the Company.

Net Interest Income Sensitivity. The Company estimates the sensitivity of its net interest income to changes in market interest rates using an interest rate simulation model that includes assumptions related to the level of balance sheet growth, deposit repricing characteristics and the rate of prepayments for multiple interest rate change scenarios. Interest rate sensitivity depends on certain repricing characteristics in the Company's interest-earnings assets and interest-bearing liabilities, including the maturity structure of assets and liabilities and their repricing characteristics during the periods of changes in market interest rates. The analysis assumes a constant balance sheet. Actual results would differ from the assumptions used in this model, as management monitors and adjusts loan and deposit pricing and the size and composition of the balance sheet to respond to changing interest rates.

In the event of an immediate and parallel increase of 200 basis points in both short and long-term interest rates, the model estimates that net interest income would decrease by 1.2% in the next year. This compares to an estimated increase of 3.0% as of the September 30, 2017 analysis. The change is primarily due to higher interest rates, lower expected prepayment speeds and shifts in the mix of fixed versus adjustable rate assets, partially offset by a decrease in the estimated deposit betas used for transaction deposits in the Company's asset liability management model. Management estimates that a gradual increase of 300 basis points in short term rates and 100 basis points in long term rates over two years would result in a net interest income decrease of 0.4% in the first year and decrease of 4.0% in the second year assuming a constant balance sheet and no management intervention.

NPV Sensitivity. NPV is an estimate of the market value of shareholders' equity. NPV is calculated as the difference between the present value of expected cash flows from interest-earning assets and the present value of expected cash flows from interest-paying liabilities and off-balance-sheet contracts. The sensitivity of NPV to changes in interest rates provides a view of interest rate risk as it incorporates all future expected cash flows. As of June 30, 2018, in the event of an immediate and parallel increase of 200 basis points in interest rates, the NPV is estimated to decline by $413,496,000 or 19.3% and the NPV to total assets ratio to decline to 11.9% from a base of 13.8%. As of September 30, 2017, the NPV in the event of a 200 basis point increase in rates was estimated to decline by $462,604,000 or 18.2% and the NPV to total assets ratio to decline to 14.6% from a base of 16.6%. The change in NPV sensitivity and lower base NPV ratio is due primarily to higher interest rates that have resulted in lower asset prices as well as greater asset price sensitivity due to lower expected prepayment speeds on fixed rate loans and mortgage-backed securities as of June 30, 2018.

Repricing Gap Analysis. At June 30, 2018, the Company had approximately $1,832,133,000 more in liabilities subject to maturity or repricing in the next year than assets, which resulted in a one-year repricing gap of (11.6)% of total assets. This was a decrease from the (15.7)% gap as of September 30, 2017. A negative repricing gap implies that funding costs on paying liabilities will change more rapidly than interest income on earning assets with movements in interest rates. A negative repricing gap typically results in lower margins when interest rates rise and higher margins when interest rates decline. This interest rate gap analysis provides management with a high-level indication of interest rate risk, but it is considered less reliable than more detailed modeling.

36

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

Interest Rate Spread. The interest rate spread is measured as the difference between the rate on total loans and investments and the rate on costing liabilities at the end of each period. The interest rate spread increased to 2.93% at June 30, 2018 from 2.90% at September 30, 2017. The spread increase of 3 basis points is primarily due to the rise in short-term interest rates, which resulted in a higher rate being earned on cash and adjustable rate loans and investment securities partially offset by a higher rate being paid on interest-bearing deposits and FHLB borrowings. As of June 30, 2018, the weighted average rate on earning assets increased by 19 basis points to 4.01% compared to September 30, 2017, while the weighted average cost of funds increased by 16 basis points to 1.08%. The interest rate spread increased to 2.93% at June 30, 2018 from 2.85% at June 30, 2017.

Net Interest Margin. Net interest margin is measured as net interest income divided by average earning assets for the period. Net interest margin increased to 3.29% for the quarter ended June 30, 2018 from 3.13% for the quarter ended June 30, 2017. The yield on earning assets increased 28 basis points to 4.26% and the cost of interest bearing liabilities increased 13 basis point to 1.04%. The higher yield on earning assets is the result of the rise in short-term interest rates, which resulted in a higher rate being earned on cash and adjustable rate loans and investment securities, as well as the shift in mix from investment securities into a higher proportion of loans receivable that carry higher yields on average. The higher rate in interest bearing liabilities was primarily due to the increase in rates on interest-bearing deposit accounts partially offset by the maturity of certain long-term FHLB advances with higher rates.

The following table sets forth the information explaining the changes in the net interest margin for the period indicated compared to the same period one year ago.

	Three Months Ended June 30, 2018						Three Months Ended June 30, 2017
	Average Balance		Interest		Average Rate		Average Balance		Interest		Average Rate
	($ in thousands)						($ in thousands)
Assets
Loans receivable	$	11,322,932	$	131,541	4.66	%	$	10,579,593	$	117,457	4.45	%
Mortgaged-backed securities	2,550,004		18,022		2.83		2,551,598		15,992		2.51
Cash & Investments	584,918		4,077		2.80		627,197		3,373		2.16
FHLB & FRB stock	135,313		1,432		4.24		124,968		894		2.87
Total interest-earning assets	14,593,167		155,072		4.26	%	13,883,356		137,716		3.98	%
Other assets	1,154,328						1,142,899
Total assets	$	15,747,495					$	15,026,255
Liabilities and Equity
Customer accounts	$	11,075,998	$	18,887	0.68	%	$	10,567,710	$	12,764	0.48	%
FHLB advances	2,533,077		16,333		2.59		2,274,451		16,337		2.88
Total interest-bearing liabilities	13,609,075		35,220		1.04	%	12,842,161		29,101		0.91	%
Other liabilities	142,557						155,460
Total liabilities	13,751,632						12,997,621
Stockholders' equity	1,995,863						2,028,634
Total liabilities and equity	$	15,747,495					$	15,026,255
Net interest income			$	119,852					$	108,615
Net interest margin					3.29	%					3.13	%

As of June 30, 2018, total assets had increased by $512,741,000 to $15,766,321,000 from $15,253,580,000 at September 30, 2017. During the nine months endedJune 30, 2018, cash and cash equivalents increased by $32,849,000, loans receivable increased $443,349,000, and investment securities increased by $12,786,000.

37

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

Cash and cash equivalents of $345,919,000 and stockholders’ equity of $1,986,263,000 as of June 30, 2018 provide management with flexibility in managing interest rate risk going forward.

LIQUIDITY AND CAPITAL RESOURCES

The principal sources of funds for the Company's activities are loan repayments (including prepayments), net deposit inflows, repayments and sales of investments and borrowings and retained earnings, if applicable. The Company's principal sources of revenue are interest on loans and interest and dividends on investments.

The Bank has a credit line with the Federal Home Loan Bank of Des Moines ("FHLB") up to 45% of total assets depending on specific collateral eligibility. This line provides a substantial source of additional liquidity if needed.

The Bank has entered into borrowing agreements with the FHLB to borrow funds under a short-term floating rate cash management advance program and fixed-rate term loan agreements. All borrowings are secured by stock of the FHLB, deposits with the FHLB, and a blanket pledge of qualifying loans receivable as provided in the agreements with the FHLB. The Bank is also eligible to borrow under the Federal Reserve Bank's primary credit program.

The Company's cash and cash equivalents totaled $345,919,000 at June 30, 2018, an increase from $313,070,000 at September 30, 2017. These amounts include the Bank's operating cash.

The Company’s net worth at June 30, 2018 was $1,986,263,000, or 12.60% of total assets. This is a decrease of $19,425,000 from September 30, 2017 when net worth was $2,005,688,000, or 13.15% of total assets. The Company’s net worth was impacted in the nine months endedJune 30, 2018 by net income of $152,335,000, the payment of $41,091,000 in cash dividends, treasury stock purchases of $136,941,000, as well as other comprehensive income of $3,122,000. The ratio of tangible capital to tangible assets at June 30, 2018 was 10.83%. Management believes the Company's strong net worth position allows it to manage balance sheet risk and provide the capital support needed for controlled growth in a regulated environment.

Washington Federal, Inc. and its banking subsidiary are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company's financial statements.

Federal banking agencies establish regulatory capital rules that require minimum capital ratios and establish criteria for calculating regulatory capital. Minimum capital ratios for four measures are used for assessing capital adequacy. The standards are indicated in the table below. The common equity tier 1 capital ratio recognizes common equity as the highest form of capital. The denominator for all except the leverage ratio is risk weighted assets. The rules set forth a “capital conservation buffer” of up to 2.5%. In the event that a bank’s capital levels fall below the minimum ratios plus these buffers, the bank's regulators may place restrictions on it. These restrictions include reducing dividend payments, share buy-backs, and staff bonus payments. The purpose of these buffers is to require banks to build up capital outside of periods of stress that can be drawn down during periods of stress. As a result, even during periods where losses are incurred, the minimum capital ratios can still be met. The capital rules that became effective in January 2015 include a phase-in period for certain minimum ratios and the capital buffers, before the full minimum ratios take effect in 2019. Management continues to monitor the financial position of the Company and its capital ratios as the rules phase in.

38

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

There are also standards for Adequate and Well Capitalized criteria that are used for “Prompt Corrective Action” purposes. To remain categorized as well capitalized, the Bank and the Company must maintain minimum common equity risk-based, tier 1 risk-based, total risk-based and tier 1 leverage ratios as set forth in the following table.

	Actual					Minimum Capital Adequacy Guidelines		Minimum Well-Capitalized Guidelines
	Capital		Ratio			Ratio		Ratio
	($ in thousands)
June 30, 2018
Common Equity Tier I risk-based capital ratio:
The Company	$	1,667,375	14.81	%		4.50	%	NA
The Bank	1,660,952		14.74	%		4.50	%	6.50	%
Tier I risk-based capital ratio:
The Company	1,667,375		14.81	%		6.00	%	NA
The Bank	1,660,952		14.74	%		6.00	%	8.00	%
Total risk-based capital ratio:
The Company	1,802,791		16.01	%		8.00	%	NA
The Bank	1,796,368		15.94	%		8.00	%	10.00	%
Tier 1 Leverage ratio:
The Company	1,667,375		10.80	%		4.00	%	NA
The Bank	1,660,952		10.75	%		4.00	%	5.00	%
September 30, 2017
Common Equity Tier 1 risk-based capital ratio:
The Company	$	1,701,327	15.99	%	(1)	4.50	%	NA
The Bank	1,668,314		15.68	%	(1)	4.50	%	6.50	%
Tier I risk-based capital ratio:
The Company	1,701,327		15.99	%	(1)	6.00	%	NA
The Bank	1,668,314		15.68	%	(1)	6.00	%	8.00	%
Total risk-based capital ratio:
The Company	1,828,935		17.22	%	(1)	8.00	%	NA
The Bank	1,795,929		16.91	%	(1)	8.00	%	10.00	%
Tier 1 Leverage ratio:
The Company	1,701,327		11.49	%		4.00	%	NA
The Bank	1,668,314		11.27	%		4.00	%	5.00	%

(1) Ratio has been updated from previously reported % to correct immaterial error in the calculation of risk-weighted assets, which is the denominator used in calculating the ratio.

CHANGES IN FINANCIAL CONDITION

Cash and cash equivalents: Cash and cash equivalents are $345,919,000 at June 30, 2018, an increase of $32,849,000, or 10.5%, since September 30, 2017.

Available-for-sale and held-to-maturity securities: Available-for-sale securities decreased $10,808,000, or 0.9%, during the nine months endedJune 30, 2018, mostly due to principal repayments and maturities of $156,240,000 and an increase in the net unrealized loss of $18,282,000, partially offset by purchases of $166,696,000. During the same period, the balance of held-to-maturity securities increased by $23,594,000 due to purchases of $170,836,000 partially offset by principal pay-downs and

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

maturities of $143,837,000. As of June 30, 2018, the Company had a net unrealized loss on available-for-sale securities of $8,659,000, which is included on a net of tax basis in accumulated other comprehensive income (loss).

Loans receivable: Loans receivable, net of related contra accounts, increased by $443,349,000 to $11,325,971,000 at June 30, 2018 compared to $10,882,622,000 at September 30, 2017. The increase resulted primarily from originations of $2,868,476,000 and purchases of $143,605,000, partially offset by loan principal repayments of $2,493,714,000. Commercial loan originations accounted for 68% of total originations and consumer loan originations were 32% during the period. Purchased loans during the period were pools of consumer loans. The increase in the loan portfolio is consistent with management's strategy during low rate environments to produce more multifamily, commercial real estate, and commercial and industrial loans that generally have adjustable interest rates or a shorter duration.

The following table shows the loan portfolio by category and the change.

	June 30, 2018				September 30, 2017				Change
	($ in thousands)				($ in thousands)				$			%
Gross loans by category
Single-family residential	$	5,745,598	45.1	%	$	5,711,004	46.8	%	$	34,594		0.6	%
Construction	1,885,034		14.8		1,597,996		13.1		287,038			18.0
Construction - custom	612,688		4.8		602,631		4.9		10,057			1.7
Land - acquisition & development	150,936		1.2		124,308		1.0		26,628			21.4
Land - consumer lot loans	103,118		0.8		104,405		0.9		(1,287		)	(1.2	)
Multi-family	1,346,534		10.6		1,303,148		10.7		43,386			3.3
Commercial real estate	1,435,418		11.3		1,434,610		11.8		808			0.1
Commercial & industrial	1,133,075		8.9		1,093,360		9.0		39,715			3.6
HELOC	136,766		1.1		144,850		1.2		(8,084		)	(5.6	)
Consumer	188,125		1.5		85,075		0.7		103,050			121.1
Total gross loans	12,737,292		100	%	12,201,387		100	%	535,905			4.4	%
Less:
Allowance for loan losses	128,666				123,073				5,593			4.5	%
Loans in process	1,230,132				1,149,934				80,198			7.0
Net deferred fees, costs and discounts	52,523				45,758				6,765			14.8
Total loan contra accounts	1,411,321				1,318,765				92,556			7.0
Net Loans	$	11,325,971			$	10,882,622			$	443,349		4.1	%

Non-performing assets: Non-performing assets increased $1,621,000 during the nine months endedJune 30, 2018 to $71,859,000 from $70,238,000 at September 30, 2017. The change is due to the $11,004,000 increase in non-accrual loans and $9,383,000 decline in REO. Non-performing assets as a percentage of total assets was 0.46% at June 30, 2018 compared to 0.46% at September 30, 2017.

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

The following table sets forth information regarding restructured loans and non-performing assets.

	June 30, 2018					September 30, 2017
	($ in thousands)
Restructured loans:
Single-family residential	$	153,356		89.4	%	$	181,941		87.8	%
Land - acquisition & development	—			—		90			—
Land - consumer lot loans	5,136			3.0		7,949			3.8
Multi - family	461			0.3		493			0.2
Commercial real estate	7,162			4.2		15,079			7.3
Commercial & industrial	3,924			2.3		—			—
HELOC	1,491			0.9		1,728			0.8
Consumer	73			—		97			—
Total restructured loans (1)	$	171,603		100	%	$	207,377		100	%
Non-accrual loans:
Single-family residential	$	26,119		43.1	%	$	27,930		56.3	%
Construction	1,841			3.0		—			—
Construction - custom	—			—		91			0.2
Land - acquisition & development	1,757			2.9		296			0.6
Land - consumer lot loans	642			1.1		605			1.2
Multi-family	—			—		139			0.3
Commercial real estate	9,684			16.0		11,815			23.8
Commercial & industrial	19,876			32.8		8,082			16.3
HELOC	637			1.1		531			1.1
Consumer	28			—		91			0.2
Total non-accrual loans	60,584			100	%	49,580			100	%
Real estate owned	11,275					20,658
Total non-performing assets	$	71,859				$	70,238
Total non-performing assets and performing restructured loans as a percentage of total assets	1.51		%			1.79		%
Total Assets
(1)    Restructured loans were as follows:
Performing	$	165,857		96.7	%	$	202,272		97.5	%
Non-performing (included in non-accrual loans above)	5,746			3.3		5,105			2.5
	$	171,603		100	%	$	207,377		100	%

For the nine months endedJune 30, 2018, the Company recognized $3,926,000 in interest income on cash payments received from borrowers on non-accrual loans. The Company would have recognized interest income of $1,741,000 for the same period had these loans performed according to their original contract terms. Recognized interest income for the nine months endedJune 30, 2018 was higher than what otherwise would have been collected in the period due to the collection of past due amounts. In addition to the non-accrual loans reflected in the above table, the Company had $50,684,000 of loans that were less than 90 days delinquent at June 30, 2018 but were classified as substandard for one or more reasons. If these loans were deemed non-performing, the Company's ratio of total NPAs and performing restructured loans as a percent of total assets would have increased to 0.78% at June 30, 2018.

Restructured single-family residential loans are reserved for under the Company’s general reserve methodology. If any individual loan is significant in balance, the Company may establish a specific reserve as warranted.

Most restructured loans are accruing and performing loans where the borrower has proactively approached the Bank about modifications due to temporary financial difficulties. Each request is individually evaluated for merit and likelihood of success. Single-family residential loans comprised 89.4% of restructured loans as of June 30, 2018. The concession for these loans is

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

typically a payment reduction through a rate reduction of 100 to 200 bps for a specific term, usually six to twenty-four months. Interest-only payments may also be approved during the modification period.

For commercial loans, six consecutive payments on newly restructured loan terms are generally required prior to returning the loan to accrual status. In some instances after the required six consecutive payments are made, a management assessment will conclude that collection of the entire principal balance is still in doubt. In those instances, the loan will remain on non-accrual. Homogeneous loans may or may not be on accrual status at the time of restructuring, but all are placed on accrual status upon the restructuring of the loan. Homogeneous loans are restructured only if the borrower can demonstrate the ability to meet the restructured payment terms; otherwise, collection is pursued and the loan remains on non-accrual status until liquidated. If the homogeneous restructured loan does not perform, it will be placed in non-accrual status when it is 90 days delinquent.

A loan that defaults and is subsequently modified would impact the Company’s delinquency trend, which is part of the qualitative risk factors component of the general reserve calculation. Any modified loan that re-defaults and is charged-off would impact the historical loss factors component of the Company's general reserve calculation.

Allowance for loan losses: The following table shows the Company’s allowance for loan losses by loan category.

June 30, 2018	Loans Collectively Evaluated for Impairment						Loans Individually Evaluated for Impairment
	Allowance Allocation		Recorded Investment of Loans		Ratio		Allowance Allocation		Recorded Investment of Loans		Ratio
	($ in thousands)						($ in thousands)
Single-family residential	$	34,401	$	5,726,737	0.6	%	$	—	$	24,139	—	%
Construction	30,133		1,007,676		3.0		—		4,563		—
Construction - custom	2,014		285,858		0.7		—		—		—
Land - acquisition & development	7,700		118,323		6.5		—		3,184		—
Land - consumer lot loans	2,907		97,310		3.0		—		833		—
Multi-family	8,086		1,343,468		0.6		5		3,045		0.2
Commercial real estate	11,502		1,388,029		0.8		77		31,805		0.2
Commercial & industrial	27,515		1,087,664		2.5		—		45,400		—
HELOC	811		134,522		0.6		—		562		—
Consumer	3,515		188,004		1.9		—		26		—
	$	128,584	$	11,377,591	1.1	%	$	82	$	113,557	0.1	%

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

September 30, 2017	Loans Collectively Evaluated for Impairment						Loans Individually Evaluated for Impairment
	Allowance Allocation		Recorded Investment of Loans		Ratio		Allowance Allocation		Recorded Investment of Loans		Ratio
	($ in thousands)						($ in thousands)
Single-family residential	$	36,892	$	5,713,576	0.7	%	$	—	$	5,552	—	%
Construction	24,556		793,958		3.1		—		—		—
Construction - custom	1,944		277,495		0.7		—		105		—
Land - acquisition & development	6,828		104,767		6.5		1		89		1.0
Land - consumer lot loans	2,649		96,337		2.8		—		171		—
Multi-family	7,857		1,302,625		0.6		5		493		1.0
Commercial real estate	11,698		1,391,668		0.8		120		21,765		0.6
Commercial & industrial	28,524		1,093,210		2.6		—		81		—
HELOC	855		141,689		0.6		—		215		—
Consumer	1,144		84,887		1.4		—		82		—
	$	122,947	$	11,000,212	1.1	%	$	126	$	28,553	0.4	%

Reserve for losses on unfunded commitments: Unfunded commitments tend to vary depending on the Company's loan mix and the proportionate share of commercial loans. The reserve for unfunded commitments was $6,750,000 as of June 30, 2018, which is a decrease from $7,750,000 at September 30, 2017. Management believes the allowance for loan losses plus the reserve for unfunded commitments, totaling $135,416,000, or 1.06% of gross loans, is sufficient to absorb estimated losses inherent in the portfolio of loans and unfunded commitments. See Note E for further discussion and analysis of the allowance for loan losses as of and for the period ended June 30, 2018.

Real estate owned: Real estate owned ("REO") decreased during the nine months endedJune 30, 2018 by $9,383,000 to $11,275,000, primarily due to sales of REO properties during the period.

Intangible assets: Intangible assets increased to $311,796,000 as of June 30, 2018 from $298,682,000 as of September 30, 2017. The increase was primarily due to an immaterial correction recorded during the three months ended December 31, 2017 related to acquisitions of insurance agency businesses in prior years that resulted in an increase in goodwill of $7,135,000 and finite-lived intangible assets of $5,106,000 and a corresponding decrease in other assets of $12,241,000.

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

Customer accounts: Customer accounts increased $452,465,000, or 4.2%, to $11,287,473,000 at June 30, 2018 compared with $10,835,008,000 at September 30, 2017.

The following table shows the composition of the Bank’s customer accounts by deposit type.

	June 30, 2018						September 30, 2017
	Deposit Account Balance		As a % of Total Deposits		Wtd. Avg. Rate		Deposit Account Balance		As a % of Total Deposits		Wtd. Avg. Rate
($ in thousands)
Non-interest checking	$	1,460,096	12.9	%	—	%	$	1,258,274	11.6	%	—	%
Interest checking	1,787,035		15.8		0.45		1,760,821		16.3		0.23
Savings (passbook/statement)	865,102		7.7		0.12		888,881		8.2		0.11
Money market	2,460,533		21.8		0.43		2,453,182		22.6		0.19
Time deposits	4,714,707		41.8		1.39		4,473,850		41.3		1.09
Total	$	11,287,473	100	%	0.75	%	$	10,835,008	100	%	0.54	%

FHLB advances and other borrowings: Total borrowings increased to $2,370,000,000 as of June 30, 2018 from $2,225,000,000 as of September 30, 2017. The weighted average rate for FHLB borrowings was 2.64% as of June 30, 2018 and 2.80% at September 30, 2017. The decrease in the rate was primarily due to the maturity of certain long-term FHLB advances.

Stockholders' equity: The Company’s total stockholders' equity at June 30, 2018 was $1,986,263,000, or 12.60% of total assets. This was a decrease of $19,425,000 from the September 30, 2017 total of $2,005,688,000, or 13.15% of total assets. The Company’s equity was impacted in the nine months endedJune 30, 2018 by net income of $152,335,000, the payment of $41,091,000 in cash dividends, treasury stock purchases of $136,941,000, as well as other comprehensive income of $3,122,000.

RESULTS OF OPERATIONS

Net Income: The Company recorded net income of $51,394,000 for the three months endedJune 30, 2018 compared to $44,112,000 for the prior year quarter. The Company recorded net income of $152,335,000 for the nine months endedJune 30, 2018 compared to $127,428,000 for the same period one year ago.

Net Interest Income: For the three months endedJune 30, 2018, net interest income was $119,852,000, which is $11,237,000 higher than the same quarter of the prior year. Net interest margin was 3.29% for the quarter ended June 30, 2018 compared to 3.13% for the quarter ended June 30, 2017. The increase in net interest income was primarily due to average earning assets increasing by $709,811,000 and the yield on earning assets increasing to 4.26% from 3.98%, partially offset by a higher average rate paid on interest-bearing liabilities, which was 1.04% for the three months endedJune 30, 2018 compared to 0.91% for the same quarter one year ago. The higher yield on earning assets is the result of the rise in short-term interest rates, which resulted in a higher rate being earned on cash and adjustable rate loans and investment securities, as well as the shift in mix from investment securities into a higher proportion of loans receivable that carry higher yields on average. The higher rate in interest bearing liabilities was primarily due to the increase in rates on interest-bearing deposit accounts partially offset by the maturity of certain long-term FHLB advances with higher rates. For the nine months endedJune 30, 2018, net interest income was $352,888,000, which is $33,394,000 higher than the same period for the prior year. Net interest margin was 3.27% for the nine months endedJune 30, 2018 compared to 3.10% for the same period for the prior year. The improvements in net interest income and net interest margin for the nine months endedJune 30, 2018 were also due to growth in earning assets, the rise in short-term interest rates and changes in mix.

The following table sets forth certain information explaining changes in interest income and interest expense for the period indicated compared to the same period one year ago. For each category of interest-earning asset and interest-bearing liability, information is provided on changes attributable to (1) changes in volume (changes in volume multiplied by old rate) and (2) changes in rate (changes in rate multiplied by old volume). The change in interest income and interest expense attributable to changes in both volume and rate has been allocated proportionately to the change due to volume and the change due to rate.

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

Rate / Volume Analysis:

	Comparison of Three Months Ended 06/30/18 and 06/30/17									Comparison of Nine Months Ended 06/30/18 and 06/30/17
	Volume			Rate			Total			Volume			Rate			Total
	(In thousands)									(In thousands)
Interest income:
Loans receivable	$	8,423		$	5,661		$	14,084		$	29,641		$	4,614		$	34,255
Mortgaged-backed securities	(10		)	2,040			2,030			(199		)	7,780			7,581
Investments (1)	(189		)	1,431			1,242			(1,816		)	3,233			1,417
All interest-earning assets	8,224			9,132			17,356			27,626			15,627			43,253
Interest expense:
Customer accounts	633			5,490			6,123			1,400			10,366			11,766
FHLB advances and other borrowings	1,747			(1,751		)	(4		)	3,511			(5,418		)	(1,907		)
All interest-bearing liabilities	2,380			3,739			6,119			4,911			4,948			9,859
Change in net interest income	$	5,844		$	5,393		$	11,237		$	22,715		$	10,679		$	33,394

___________________ 

(1) Includes interest on cash equivalents and dividends on FHLB & FRB stock

Provision (Release) for Loan Losses: The Company recorded a provision for loan losses of $1,000,000 for the three months endedJune 30, 2018, compared with no provision for loan losses for the three months endedJune 30, 2017. A provision for loan losses of $50,000 and a release of allowance for loan losses of $1,600,000 was recorded during the nine months endedJune 30, 2018 and June 30, 2017, respectively. Reserving for new loan originations as the loan portfolio grows has been largely offset by recoveries of previously charged-off loans. Recoveries, net of charge-offs, totaled $90,000 for the three months endedJune 30, 2018, compared to net recoveries of $1,252,000 during the three months endedJune 30, 2017. Recoveries, net of charge-offs, totaled $4,543,000 for the nine months endedJune 30, 2018, compared to net recoveries of $11,764,000 during the nine months endedJune 30, 2017.

Other Income: The three months endedJune 30, 2018 results include total other income of $12,451,000 compared to $13,922,000 for the same period one year ago. The decrease is primarily due to gains recognized on bank-owned life insurance during the three months endedJune 30, 2017. Results for the nine months endedJune 30, 2018 include total other income of $31,833,000 compared to $35,954,000 for the same period one year ago. The decrease during the nine months endedJune 30, 2018 is primarily due to a $8,550,000 charge recorded during the quarter ended December 31, 2017 for asset and liability valuation adjustments associated with FDIC loss share agreements. The Bank initiated discussions with the FDIC in December 2017 regarding early termination of its remaining FDIC loss share agreements, which relate to the Horizon Bank and Home Valley Bank acquisitions. In May 2018, the Bank finalized the early termination agreement and paid $39,906,000 to settle the FDIC clawback liability. This amount is consistent with the liability on the balance sheet as of March 31, 2018 so no additional gain or loss was recorded in the three months endedJune 30, 2018. Under the termination agreement, all rights and obligations of the Bank and the FDIC have been resolved and completed. As such, future recoveries, gains, losses and expenses related to the previously covered assets will now be recognized entirely by the Bank and the FDIC will no longer share in such gains or losses. The impact of these FDIC loss share valuation adjustments was partially offset by a $3,697,000 increase in deposit fee income, which was driven mostly by the 2017 launch of the Company's new "Green Checking" product.

Other Expense: The three months endedJune 30, 2018 results include total other expense of $66,977,000 compared to $57,062,000 for the same period one year ago, a $9,915,000 or 17.4% increase. The Company recognized $4.9 million of expense during the three months endedJune 30, 2018 related to enhancements of its Bank Secrecy Act ("BSA") program and projects that it will incur an additional $10,000,000 of non-recurring BSA related costs spread over the next four quarters. Once the program is steadied, BSA costs are expected to be approximately $2,000,000 per quarter. Compensation and benefits costs increased $2,276,000 primarily due to headcount increases and cost of living adjustments since last year. The number of staff, including part-time employees on a full-time equivalent basis, was 1,869 and 1,815 at June 30, 2018 and 2017, respectively. Information technology costs increased by $3,501,000 and other expenses increased by $2,654,000 for the three months endedJune 30, 2018 as both were elevated primarily due to the aforementioned Bank Secrecy Act program enhancements and other technology platform initiatives. The nine months endedJune 30, 2018 results include total other expense of $194,705,000 compared to $168,870,000 for the same period one year ago, a $25,835,000 or 15.3% increase. Compensation and benefits costs increased $7,693,000 primarily due to

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

headcount increases and cost of living adjustments since last year. Information technology costs increased by $7,074,000 and other expenses increased by $8,747,000 for the nine months endedJune 30, 2018 due to ongoing initiatives to enhance the Company's overall technology platform and its Bank Secrecy Act program. Additionally, charitable contributions increased by $1,000,000 from the prior year as the Company fulfilled the first year of its previously announced commitment to fund its foundation by $1,000,000 annually for the next five years. Product delivery costs increased by $1,881,000 primarily due to enhanced features provided with the "Green Checking" product. Total other expense for the nine months endedJune 30, 2018 and June 30, 2017 equaled 1.67% and 1.51%, respectively, of average assets.

Gain (Loss) on Real Estate Owned: Results for the three months endedJune 30, 2018 include a net gain on real estate owned of $168,000, compared to a loss of $124,000 for the same period one year ago. Results for the nine months endedJune 30, 2018 include a net loss on real estate owned of $64,000, compared to a gain of $1,069,000 for the same period one year ago.

Income Tax Expense: Income tax expense totaled $13,100,000 for the three months endedJune 30, 2018, as compared to $21,239,000 for the same period one year ago. Income tax expense totaled $37,567,000 for the nine months endedJune 30, 2018, as compared to $61,819,000 for the same period one year ago. The effective tax rate for the nine months endedJune 30, 2018 was 19.78% compared to 32.67% for the nine months endedJune 30, 2017 and 32.27% for the full fiscal year ended September 30, 2017. Due to the reduction in the statutory federal corporate tax rate from 35% to 21% effective from January 1, 2018 forward, the Company has a blended federal statutory tax rate of 24.53% for its fiscal year 2018. The Company's effective tax rate for the nine months endedJune 30, 2018 differs from the new 2018 statutory rate due to the impact of state tax, bank-owned life insurance, low-income housing investments and tax-exempt loans, as well as discrete tax items. The income tax expense for the nine months endedJune 30, 2018 includes a discrete tax benefit of $5,387,000 from the revaluation of the Company's deferred tax assets and liabilities on account of the rate change, as well as tax benefits of $2,472,000 related to stock-based compensation and other adjustments. The Company estimates that its annual effective tax rate for fiscal 2018 (blended rate year) will be approximately 21%, taking into account discrete tax benefits.

Item 3.        Quantitative and Qualitative Disclosures About Market Risk

Management believes that there have been no material changes in the Company’s quantitative and qualitative information about market risk since September 30, 2017. For a complete discussion of the Company’s quantitative and qualitative market risk, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s 2017 Form 10-K.

Item 4.        Controls and Procedures

(a) Evaluation of Disclosure Controls and Procedures. The Company maintains a set of disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, and that such information is accumulated and communicated to the Company's management, including the Company’s Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. Management has evaluated, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, the effectiveness of the Company’s disclosure controls and procedures as of the end of the period covered by this quarterly report (the "Evaluation Date"). Based on the evaluation, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that, as of the Evaluation Date, the Company's disclosure controls and procedures are effective.

(b) Changes in Internal Control over Financial Reporting. During the period to which this report relates, there have not been any changes in the Company's internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that have materially affected, or that are reasonably likely to materially affect, such controls.

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WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

PART II – Other Information

Item 1. Legal Proceedings

From time to time, the Company and its subsidiaries are engaged in legal proceedings in the ordinary course of business, none of which are considered to have a material impact on the Company’s consolidated financial statements.

Item 1A. Risk Factors

In addition to the other information set forth below and in this report, you should carefully consider the factors discussed under "Part I--Item 1A--Risk Factors" in the 2017 Form 10-K for the year ended September 30, 2017. These factors could materially and adversely affect the Company's business, financial condition, liquidity, results of operations and capital position, and could cause its actual results to differ materially from its historical results or the results contemplated by the forward-looking statements contained in this report.

The Office of the Comptroller of the Currency has issued a Consent Order with respect to the Company's Bank Secrecy Act compliance. Failure to comply with the Consent Order could result in additional regulatory enforcement action.

The Bank Secrecy Act ("BSA"), the USA PATRIOT Act of 2001 (the “Patriot Act”), and other laws and regulations require financial institutions, among other duties, to institute and maintain an effective anti-money laundering program and file suspicious activity and currency transaction reports as appropriate. On February 28, 2018, pursuant to a Stipulation and Consent to the Issuance of a Consent Order (the “Stipulation”), the Office of the Comptroller of the Currency issued a Consent Order relating to the Bank, the terms of which are intended to further enhance its BSA program.  Copies of the Stipulation and the Consent Order were filed with the SEC on March 1, 2018 as exhibits to the Company’s Current Report on Form 8-K. The Bank expects to continue to incur significant expenses as it strengthens its BSA program and implements additional policies and procedures associated with complying with the Consent Order. The Bank does not expect to pursue acquisitions or branch expansion until its BSA program has improved. Issuance of the Consent Order does not preclude further government action with respect to the Bank’s BSA program, including the imposition of fines, sanctions, additional expenses and compliance costs, and/or restrictions on the activities of the Bank. In addition, failure to comply with the Consent Order could subject us to additional expense and further regulatory enforcement action, including the imposition of material restrictions on the activities of the Bank or the assessment of fines or penalties, which could prevent the Bank from executing its business strategy and negatively impact its business and the price of the Company's common stock. Any further deficiency in the Bank's BSA/AML policies, procedures and systems could cause us to incur additional significant compliance costs and could subject it to fines and further regulatory actions. Moreover, failure to maintain and implement an effective BSA program could also have serious reputational consequences for the Company. Any of these results could have a material adverse effect on the Company's business, financial condition and results of operations.

The Company has risk of systems failures and cyber-security risk, including "hacking" and "identity theft."

The Company relies extensively on the successful and uninterrupted functioning of its information technology and telecommunications systems to conduct its business. This includes internally developed systems, the systems of third-party service providers, and digital and mobile technologies. Any failure, interruption or breach in security of these systems could result in failures or disruptions in its customer relationship management, general ledger, deposit, loan and other systems, and could damage its reputation, result in loss of customer business, subject it to regulatory scrutiny, or expose it to civil litigation and possible financial liability.

While the Company believes it has robust information systems and security procedures, controls and policies designed to prevent or limit the effect of the failure, interruption or security breach of its information systems, there can be no assurance that any such failures, interruptions or security breaches will not occur, or, if they do occur, that the Company will be able to address or remediate the damage. Because the techniques used to obtain unauthorized access, disable or degrade systems change frequently and often are not recognized until launched against a target, the Company may be unable to anticipate these techniques or to implement adequate protective measures.

Cybersecurity and the continued development and enhancement of the Company's controls, processes and practices designed to protect customer information, its systems, computers, software, data and networks from attack, damage or unauthorized access remain a priority for the Company. As cybersecurity threats continue to evolve, the Company may be required to expend additional resources to continue to enhance, modify and refine its protective measures against these evolving threats.

To date, the Company has not experienced any material losses related to cyber-attacks or other information security breaches, but there can be no assurance that it will not suffer such attacks and losses in the future. The Company’s risk and exposure to these

47

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

matters remains heightened because of, among other things, the evolving nature of these threats and its plans to continue to implement internet banking and mobile banking channels, expand operations and use third-party information systems. Recent instances of attacks specifically targeting financial services businesses indicate that the risk to the Company’s systems remains significant. If the Company were to experience a cyber-attack or information security breach, it could incur substantial additional expenses, which could include remediation expenses, costs associated with customer notification and credit monitoring services, increased insurance premiums, regulatory penalties and fines and costs associated civil litigation, any of which could have a material adverse effect on the Company’s business, financial conditions or results of operations.

Item 2.        Unregistered Sales of Equity Securities and Use of Proceeds

The following table provides information with respect to purchases made by or on behalf of the Company of the Company’s common stock during the three months ended June 30, 2018.

Period	Total Number of Shares Purchased	Average Price Paid Per Share		Total Number of Shares Purchased as Part of  Publicly Announced Plan (1)	Maximum Number of Shares That May Yet Be Purchased Under the Plan at the End of the Period (2)
April 1, 2018 to April 30, 2018	275,589	$	32.44	275,589	3,804,560
May 1, 2018 to May 31, 2018	549,100	32.17		549,100	3,255,460
June 1, 2018 to June 30, 2018	399,695	33.42		399,695	2,855,765
Total	1,224,384	$	32.64	1,224,384	2,855,765

 ___________________

(1) The Company's stock repurchase program was publicly announced by its Board of Directors on February 3, 1995 and has no expiration date. Under this ongoing program, a total of 56,956,264 shares were authorized for repurchase.

(2) Shares remaining available reflects the impact of TARP warrants that have been repurchased for cash as management also counts these against the maximum number of shares that may be repurchased under the Plan.

Item 3.        Defaults Upon Senior Securities

Not applicable

Item 4.        Mine Safety Disclosures

Not applicable

Item 5.        Other Information

Not applicable

Item 6.        Exhibits

(a)	Exhibits
	31.1	Section 302 Certification by the Chief Executive Officer
	31.2	Section 302 Certification by the Chief Financial Officer
	32	Section 906 Certification by the Chief Executive Officer and Chief Financial Officer
	101	Financial Statements from the Company’s Form 10-Q for the three months ended June 30, 2018 formatted in XBRL

48

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

SIGNATURES

Pursuant to the requirements of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

July 26, 2018	/S/    BRENT J. BEARDALL
	BRENT J. BEARDALL President & Chief Executive Officer
July 26, 2018	/S/    VINCENT L. BEATTY
	VINCENT L. BEATTY Executive Vice President and Chief Financial Officer
July 26, 2018	/S/    CORY D. STEWART
	CORY D. STEWART Senior Vice President and Principal Accounting Officer

49

EX-31.1

Exhibit 31.1

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CERTIFICATION

I, Brent J. Beardall, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Washington Federal, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this quarterly report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	July 26, 2018	/s/ Brent J. Beardall
		BRENT J. BEARDALL President and Chief Executive Officer

EX-31.2

Exhibit 31.2

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CERTIFICATION

I, Vincent L. Beatty, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Washington Federal, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this quarterly report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	July 26, 2018	/s/ Vincent L. Beatty
		VINCENT L. BEATTY
		Executive Vice President and Chief Financial Officer

EX-32

Exhibit 32

WASHINGTON FEDERAL, INC. AND SUBSIDIARIES

CERTIFICATION

PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Washington Federal, Inc. (the “Company”) on Form 10-Q for the period ended June 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to the undersigned's best knowledge and belief:

(a) the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(b) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: July 26, 2018

Washington Federal, Inc.

(Company)

/s/ Brent J. Beardall

BRENT J. BEARDALL

President and Chief Executive Officer

/s/ Vincent L. Beatty

VINCENT L. BEATTY

Executive Vice President and Chief Financial Officer

XML

Document and Entity Information - shares	9 Months Ended
	Jun. 30, 2018	Jul. 24, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Entity Registrant Name	WASHINGTON FEDERAL INC
Entity Central Index Key	0000936528
Current Fiscal Year End Date	--09-30
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		83,537,545

XML

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
ASSETS
Cash and cash equivalents	$ 345,919	$ 313,070
Available-for-sale securities, at fair value	1,255,401	1,266,209
Held-to-maturity securities, at amortized cost	1,670,450	1,646,856
Loans receivable, net of allowance for loan losses of $128,666 and $123,073	11,325,971	10,882,622
Interest receivable	43,670	41,643
Premises and equipment, net	269,674	263,694
Real estate owned	11,275	20,658
FHLB and FRB stock	128,790	122,990
Bank owned life insurance	214,752	211,330
Intangible assets, including goodwill of $301,368 and $293,153	311,796	298,682
Federal and state income tax assets, net	4,293	0
Other assets	184,330	185,826
Assets	15,766,321	15,253,580
Customer accounts
Transaction deposit accounts	6,572,766	6,361,158
Time deposit accounts	4,714,707	4,473,850
Customer accounts	11,287,473	10,835,008
FHLB advances	2,370,000	2,225,000
Advance payments by borrowers for taxes and insurance	32,632	56,631
Accrued expenses and other liabilities	89,953	131,253
Liabilities	13,780,058	13,247,892
Stockholders’ equity
Common stock, $1.00 par value, 300,000,000 shares authorized; 135,343,437 and 134,957,511 shares issued; 83,534,098 and 87,193,362 shares outstanding	135,344	134,958
Additional paid-in capital	1,665,421	1,660,885
Accumulated other comprehensive income (loss), net of taxes	8,137	5,015
Treasury stock, at cost; 51,809,339 and 47,764,149 shares	(975,001)	(838,060)
Retained earnings	1,152,362	1,042,890
Stockholders’ equity	1,986,263	2,005,688
Liabilities and equity	$ 15,766,321	$ 15,253,580

XML

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Statement of Financial Position [Abstract]
Allowance for loan losses	$ 128,666	$ 123,073
Goodwill	$ 301,368	$ 293,153
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	135,343,437	134,957,511
Common stock, shares outstanding (in shares)	83,534,098	87,193,362
Treasury stock, shares (in shares)	51,809,339	47,764,149

XML

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
INTEREST INCOME
Loans receivable	$ 131,541,000	$ 117,457,000	$ 382,581,000	$ 348,326,000
Mortgage-backed securities	18,022,000	15,992,000	52,588,000	45,007,000
Investment securities and cash equivalents	5,509,000	4,267,000	14,762,000	13,345,000
Interest income	155,072,000	137,716,000	449,931,000	406,678,000
INTEREST EXPENSE
Customer accounts	18,887,000	12,764,000	49,939,000	38,173,000
FHLB advances	16,333,000	16,337,000	47,104,000	49,011,000
Interest expense	35,220,000	29,101,000	97,043,000	87,184,000
Net interest income	119,852,000	108,615,000	352,888,000	319,494,000
Provision (release) for loan losses	1,000,000	0	50,000	(1,600,000)
Net interest income after provision (release) for loan losses	118,852,000	108,615,000	352,838,000	321,094,000
OTHER INCOME
Gain on sale of investment securities	0	0	0	968,000
FDIC loss share valuation adjustments	0	0	(8,550,000)	0
Loan fee income	1,094,000	889,000	2,909,000	3,310,000
Deposit fee income	6,411,000	5,714,000	19,500,000	15,803,000
Other income	4,946,000	7,319,000	17,974,000	15,873,000
Other income, total	12,451,000	13,922,000	31,833,000	35,954,000
OTHER EXPENSE
Compensation and benefits	31,223,000	28,947,000	92,467,000	84,774,000
Occupancy	9,095,000	8,829,000	26,779,000	26,370,000
FDIC insurance premiums	2,950,000	2,842,000	8,622,000	8,591,000
Product delivery	4,356,000	3,246,000	11,977,000	10,096,000
Information technology	10,118,000	6,617,000	26,828,000	19,754,000
Other expense	9,235,000	6,581,000	28,032,000	19,285,000
Other expense, total	66,977,000	57,062,000	194,705,000	168,870,000
Gain (loss) on real estate owned, net	168,000	(124,000)	(64,000)	1,069,000
Income before income taxes	64,494,000	65,351,000	189,902,000	189,247,000
Income tax expense	13,100,000	21,239,000	37,567,000	61,819,000
NET INCOME	$ 51,394,000	$ 44,112,000	$ 152,335,000	$ 127,428,000
PER SHARE DATA
Basic earnings per share (in dollars per share)	$ 0.61	$ 0.49	$ 1.78	$ 1.43
Diluted earnings per share (in dollars per share)	0.61	0.49	1.78	1.42
Dividends paid on common stock per share (in dollars per share)	$ 0.17	$ 0.15	$ 0.49	$ 0.69
Basic weighted average number of shares outstanding (in shares)	84,168,992	89,199,823	85,589,588	89,297,471
Diluted weighted average number of shares outstanding (in shares)	84,252,659	89,497,264	85,698,888	89,653,955

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 51,394	$ 44,112	$ 152,335	$ 127,428
Other comprehensive income (loss) net of tax:
Net unrealized gain (loss) on available-for-sale investment securities	(4,851)	3,171	(18,282)	(8,224)
Reclassification adjustment of net gain (loss) from sale of available-for-sale securities included in net income	0	0	0	968
Related tax benefit (expense)	1,104	(1,165)	5,506	2,667
Other comprehensive income (loss) on available-for-sale securities, net of tax	(3,747)	2,006	(12,776)	(4,589)
Net unrealized gain (loss) on cash flow hedges of borrowings	3,865	(2,856)	20,887	28,810
Related tax benefit (expense)	(879)	1,049	(4,989)	(10,587)
Other comprehensive income (loss) on cash flow hedges of borrowings, net of tax	2,986	(1,807)	15,898	18,223
Other comprehensive income (loss) net of tax	(761)	199	1,350	13,634
Other comprehensive income (loss), including cumulative effect adjustment, net of tax			3,122
Comprehensive income	$ 50,633	$ 44,311	$ 155,457	$ 141,062

XML

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Balance, beginning of period at Sep. 30, 2016	$ 1,975,731	$ 134,308	$ 1,648,388	$ 943,877	$ (11,156)	$ (739,686)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	127,428			127,428
Other comprehensive income (loss)	13,634				13,634
Dividends on common stock	(61,341)			(61,341)
Proceeds from exercise of common stock options	7,078	309	6,769
Restricted stock expense	5,126	105	5,021
Exercise of stock warrants	0	225	(225)
Treasury stock acquired	(46,470)					(46,470)
Balance, end of period at Jun. 30, 2017	2,021,186	134,947	1,659,953	1,009,964	2,478	(786,156)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustment pursuant to adoption of ASU 2018-02	0			(1,772)	1,772
Balance, beginning of period at Sep. 30, 2017	2,005,688	134,958	1,660,885	1,042,890	5,015	(838,060)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	152,335			152,335
Other comprehensive income (loss)	1,350				1,350
Dividends on common stock	(41,091)			(41,091)
Proceeds from exercise of common stock options	1,288	60	1,228
Restricted stock expense	3,634	215	3,419
Exercise of stock warrants	0	111	(111)
Treasury stock acquired	(136,941)					(136,941)
Balance, end of period at Jun. 30, 2018	$ 1,986,263	$ 135,344	$ 1,665,421	$ 1,152,362	$ 8,137	$ (975,001)

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 152,335,000	$ 127,428,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and accretion expense, net	38,980,000	29,602,000
Cash received from (paid to) FDIC under loss share agreements, net	1,595,000	813,000
Stock based compensation expense	3,634,000	5,126,000
Provision (release) for loan losses	50,000	(1,600,000)
Loss (gain) on sale of investment securities	0	(968,000)
Decrease (increase) in accrued interest receivable	(2,027,000)	(1,257,000)
Decrease (increase) in federal and state income tax receivable	(4,293,000)	16,047,000
Decrease (increase) in cash surrender value of bank owned life insurance	(4,490,000)	(4,907,000)
Gain on bank owned life insurance	(2,416,000)	(4,983,000)
Net realized (gain) loss on sales of premises, equipment, and real estate owned	(1,333,000)	(1,691,000)
Decrease (increase) in other assets	(878,000)	6,618,000
Increase (decrease) in accrued expenses and other liabilities	(40,862,000)	(47,859,000)
Net cash provided by (used in) operating activities	140,295,000	122,369,000
CASH FLOWS FROM INVESTING ACTIVITIES
Origination of loans and principal repayments, net	(308,167,000)	(668,413,000)
Loans purchased	(143,605,000)	(72,856,000)
FHLB & FRB stock purchased	(408,800,000)	(93,009,000)
FHLB & FRB stock redeemed	403,000,000	85,224,000
Available-for-sale securities purchased	(166,696,000)	0
Principal payments and maturities of available-for-sale securities	156,240,000	290,243,000
Proceeds from sales of available-for-sale securities	0	350,890,000
Held-to-maturity securities purchased	(170,836,000)	(415,729,000)
Principal payments and maturities of held-to-maturity securities	143,837,000	176,333,000
Proceeds from sales of real estate owned	11,960,000	13,780,000
Proceeds from settlement of bank owned life insurance	3,484,000	6,913,000
Cash paid for acquisitions	(2,211,000)	0
Proceeds from sales of premises and equipment	1,000	3,956,000
Premises and equipment purchased and REO improvements	(22,604,000)	(9,541,000)
Net cash provided by (used in) investing activities	(504,397,000)	(332,209,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in customer accounts	452,694,000	33,654,000
Proceeds from borrowings	10,220,000,000	2,325,000,000
Repayments of borrowings	(10,075,000,000)	(2,130,000,000)
Proceeds from exercise of common stock options and related tax benefit	1,288,000	7,078,000
Dividends paid on common stock	(41,091,000)	(61,341,000)
Treasury stock purchased	(136,941,000)	(46,470,000)
Increase (decrease) in borrower advances related to taxes and insurance, net	(23,999,000)	(9,197,000)
Net cash provided by (used in) financing activities	396,951,000	118,724,000
Increase (decrease) in cash and cash equivalents	32,849,000	(91,116,000)
Cash and cash equivalents at beginning of period	313,070,000	450,368,000
Cash and cash equivalents at end of period	345,919,000	359,252,000
Non-cash investing activities
Real estate acquired through foreclosure	1,517,000	2,323,000
Non-cash financing activities
Stock issued upon exercise of warrants	3,836,000	7,546,000
Cash paid during the period for
Interest	95,394,000	82,919,000
Income taxes	$ 34,160,000	$ 33,228,000

XML

Summary of Significant Accounting Policies

9 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Nature of Operations - Washington Federal, Inc. (the "Company") is a Washington corporation headquartered in Seattle, Washington. The Company is a bank holding company that conducts its operations through its national bank subsidiary, Washington Federal, National Association (the "Bank"). The Bank is principally engaged in the business of attracting deposits from businesses and the general public and investing these funds, together with borrowings and other funds, in one-to-four family residential mortgage and construction loans, home equity loans, lines of credit, commercial real estate loans, commercial and industrial loans, multi-family and other forms of real estate loans. As used throughout this document, the terms "Washington Federal" or the "Company" refer to Washington Federal, Inc. and its consolidated subsidiaries and the term "Bank" refers to the operating subsidiary Washington Federal, National Association.

Basis of Presentation - The Company has prepared the consolidated unaudited interim financial statements included in this report. All intercompany transactions and accounts have been eliminated in consolidation. The preparation of financial statements, in conformity with accounting principles generally accepted in the United States of America (“GAAP”), requires management to make estimates and assumptions that affect amounts reported in the financial statements. Actual results could differ from these estimates. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation are reflected in the interim financial statements. Certain amounts in the financial statements from prior periods have been reclassified to conform to the current financial statement presentation.

The information included in this Form 10-Q should be read in conjunction with the financial statements and related notes in the Company's 2017 Annual Report on Form 10-K (“2017 Annual Financial Statements”). Interim results are not necessarily indicative of results for a full year.

During the nine months endedJune 30, 2018, an immaterial correction was recorded related to acquisitions of insurance agency businesses in prior years. The balance sheet classification correction resulted in an increase in goodwill of $7,135,000 and finite-lived intangible assets of $5,106,000 and a corresponding decrease in other assets of $12,241,000.

Summary of Significant Accounting Policies - The significant accounting policies used in preparation of the Company's consolidated financial statements are disclosed in its 2017 Annual Financial Statements. There have not been any material changes in the Company's significant accounting policies compared to those contained in its 2017 Annual Financial Statements for the year ended September 30, 2017.

Off-Balance-Sheet Credit Exposures - The only material off-balance-sheet credit exposures are loans in process and unused lines of credit, which had a combined balance of $2,161,343,000 and $1,992,905,000 at June 30, 2018 and September 30, 2017, respectively. The Company estimates losses on off-balance-sheet credit exposures by allocating a loss percentage derived from historical loss factors for each asset class.

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New Accounting Pronouncements

9 Months Ended

Jun. 30, 2018

Accounting Changes and Error Corrections [Abstract]

New Accounting Pronouncements

New Accounting Pronouncements

In August 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The ASU expands and refines hedge accounting for both financial and non-financial risk components, aligns the recognition and presentation of the effects of hedging instruments and hedge items in the financial statements, and includes certain targeted improvements to ease the application of current guidance related to the assessment of hedge effectiveness. The effective date of the new standard for public companies is for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The new standard must be adopted using a modified retrospective transition with a cumulative effect adjustment recorded to opening retained earnings as of the initial adoption date. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities. The ASU shortens the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The ASU is effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. If an entity early adopts in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In February 2017, the FASB issued ASU 2017-05, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets. The ASU clarifies that a financial asset is within the scope of Subtopic 610-20 if it meets the definition of an in substance nonfinancial asset. The amendments also define the term in substance nonfinancial asset. The amendments clarify that nonfinancial assets within the scope of Subtopic 610-20 may include nonfinancial assets transferred within a legal entity to a counterparty. A contract that includes the transfer of ownership interests in one or more consolidated subsidiaries is within the scope of Subtopic 610-20 if substantially all of the fair value of the assets that are promised to the counterparty in a contract is concentrated in nonfinancial assets. The amendments clarify that an entity should identify each distinct nonfinancial asset or in substance nonfinancial asset promised to a counterparty and derecognize each asset when a counterparty obtains control of it. The ASU is effective for public business entities for annual periods beginning after December 15, 2017, and interim periods therein. Entities may use either a full or modified approach to adopt the ASU. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash: a Consensus of the FASB Emerging Issues Task Force. This ASU requires a company’s cash flow statement to explain the changes during a reporting period of the totals for cash, cash equivalents, restricted cash, and restricted cash equivalents. Additionally, amounts for restricted cash and restricted cash equivalents are to be included with cash and cash equivalents if the cash flow statement includes a reconciliation of the total cash balances for a reporting period. This ASU is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2017, with early application permitted. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments. The amendments in this ASU address eight specific cash flow issues with the objective of reducing diversity in practice. The specific issues identified include: debt prepayments or extinguishment costs; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (including bank-owned life insurance policies); distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. This ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period; however, early adoption is permitted. The Company is currently evaluating the guidance to determine its adoption method and does not expect this guidance to have a material impact on its consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses. The amendments in this ASU were issued to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments that are not accounted for at fair value through net income, including loans held for investment, held-to-maturity debt securities, trade and other receivables, net investments in leases and other commitments to extend credit held by a reporting entity at each reporting date. The amendments require that financial assets measured at amortized cost be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The ASU eliminates the current framework of recognizing probable incurred losses and instead requires an entity to use its current estimate of all expected credit losses over the contractual life. The measurement of expected credit losses is based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the financial assets.

For purchased financial assets with a more-than-insignificant amount of credit deterioration since origination (“PCD assets”) that are measured at amortized cost, an allowance for expected credit losses is recorded as an adjustment to the cost basis of the asset. Subsequent changes in estimated cash flows would be recorded as an adjustment to the allowance and through the statement of income.

Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down to the security's cost basis.

The amendments in this ASU are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. For most debt securities, the transition approach requires a cumulative-effect adjustment to the statement of financial position as of the beginning of the first reporting period the guidance is effective. For other-than-temporarily impaired debt securities and PCD assets, the guidance will be applied prospectively. While the Company is currently in the process of evaluating the impact of the amended guidance on its consolidated financial statements, it currently expects the ALLL to increase upon adoption given that the allowance will be required to cover the full remaining expected life of the portfolio upon adoption, rather than the incurred loss model under current U.S. GAAP. The extent of this increase is still being evaluated and will depend on economic conditions and the composition of the Company’s loan and lease portfolio at the time of adoption.

In February 2016, the FASB issued ASU 2016-02, Leases. The amendments require lessees to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, and a right-of-use asset, which is an asset that represents the lessee's right to use, or control the use of, a specified asset for the lease term. The guidance also simplifies the accounting for sale and leaseback transactions. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application is permitted upon issuance. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. The Company is currently in the process of accumulating the lease data necessary to apply the amended guidance. The Company is continuing to evaluate the impact of the amended guidance on its consolidated financial statements, but the effects of recognizing most operating leases is not expected to be material. The Company expects to recognize right-of-use assets and lease liabilities for substantially all of its operating lease commitments based on the present value of unpaid lease payments as of the date of adoption.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, to require all equity investments to be measured at fair value with changes in the fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee). The amendments in this ASU also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. This ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. The Company does not expect this guidance to have a material impact on its consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The guidance in this update supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the industry topics of the codification. For public companies, this update was to be effective for interim and annual periods beginning after December 15, 2016. However, in August 2015, the FASB issued ASU 2015-14, which delayed the effective date of ASU 2014-09 by one year and permits companies to voluntarily adopt the new standard as of the original effective date. The Company does not expect this guidance to have a material impact on its consolidated financial statements.

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Dividends and Share Repurchases

9 Months Ended

Jun. 30, 2018

Stockholders' Equity Note [Abstract]

Dividends and Share Repurchases

Dividends and Share Repurchases

On May 25, 2018, the Company paid a regular dividend on common stock of $0.17 per share, which represented the 141st consecutive quarterly cash dividend. Dividends per share were $0.17 and $0.15 for the quarters ended June 30, 2018 and 2017, respectively. On July 23, 2018, the Company declared a regular dividend on common stock of $0.18 per share, which represents its 142nd consecutive quarterly cash dividend. This dividend will be paid on August 24, 2018 to common shareholders of record on August 10, 2018.

For the three months endedJune 30, 2018, the Company repurchased 1,224,384 shares at an average price of $32.64. During the three months endedJune 30, 2018, 2,329 shares of common stock were issued to investors holding warrants previously issued as part of the 2008 Troubled Asset Relief Program ("TARP"). As of June 30, 2018, 107,617 of these warrants remain outstanding. Net of warrant cash repurchase activity, there are 2,855,765 remaining shares authorized to be repurchased under the current Board approved share repurchase program.

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Loans Receivable

9 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Loans Receivable

Loans Receivable

The following table is a summary of loans receivable.

	June 30, 2018				September 30, 2017
	(In thousands)				(In thousands)
Gross loans by category
Single-family residential	$	5,745,598	45.1	%	$	5,711,004	46.8	%
Construction	1,885,034		14.8		1,597,996		13.1
Construction - custom	612,688		4.8		602,631		4.9
Land - acquisition & development	150,936		1.2		124,308		1.0
Land - consumer lot loans	103,118		0.8		104,405		0.9
Multi-family	1,346,534		10.6		1,303,148		10.7
Commercial real estate	1,435,418		11.3		1,434,610		11.8
Commercial & industrial	1,133,075		8.9		1,093,360		9.0
HELOC	136,766		1.1		144,850		1.2
Consumer	188,125		1.5		85,075		0.7
Total gross loans	12,737,292		100	%	12,201,387		100	%
Less:
Allowance for loan losses	128,666				123,073
Loans in process	1,230,132				1,149,934
Net deferred fees, costs and discounts	52,523				45,758
Total loan contra accounts	1,411,321				1,318,765
Net loans	$	11,325,971			$	10,882,622

The following table sets forth information regarding non-accrual loans.

	June 30, 2018					September 30, 2017
	(In thousands, except ratio data)
Non-accrual loans:
Single-family residential	$	26,119		43.1	%	$	27,930		56.3	%
Construction	1,841			3.0		—			—
Construction - custom	—			—		91			0.2
Land - acquisition & development	1,757			2.9		296			0.6
Land - consumer lot loans	642			1.1		605			1.2
Multi-family	—			—		139			0.3
Commercial real estate	9,684			16.0		11,815			23.8
Commercial & industrial	19,876			32.8		8,082			16.3
HELOC	637			1.1		531			1.1
Consumer	28			—		91			0.2
Total non-accrual loans	$	60,584		100	%	$	49,580		100	%
% of total net loans	0.53		%			0.46		%

The Company recognized interest income on non-accrual loans of approximately $3,926,000 in the nine months endedJune 30, 2018. Had these loans been on accrual status and performed according to their original contract terms, the Company would have recognized interest income of approximately $1,741,000 for the nine months endedJune 30, 2018. Recognized interest income for the nine months endedJune 30, 2018 was higher than what otherwise would have been collected in the period due to the collection of past due amounts. Interest cash flows collected on non-accrual loans vary from period to period as those loans are brought current or are paid off.

The following tables provide details regarding delinquent loans.

June 30, 2018	Loans Receivable		Days Delinquent Based on $ Amount of Loans										% based on $
Type of Loan	Net of Loans In Process		Current		30		60		90		Total Delinquent
	(In thousands, except ratio data)
Single-family residential	$	5,744,620	$	5,714,962	$	7,201	$	4,521	$	17,936	$	29,658	0.52	%
Construction	1,012,239		1,009,782		—		616		1,841		2,457		0.24
Construction - custom	285,858		285,687		171		—		—		171		0.06
Land - acquisition & development	121,508		119,593		—		270		1,645		1,915		1.58
Land - consumer lot loans	103,040		102,303		128		301		308		737		0.72
Multi-family	1,346,512		1,346,512		—		—		—		—		—
Commercial real estate	1,435,417		1,433,030		684		—		1,703		2,387		0.17
Commercial & industrial	1,133,075		1,126,480		—		—		6,595		6,595		0.58
HELOC	136,766		135,406		863		146		351		1,360		0.99
Consumer	188,125		187,773		125		127		100		352		0.19
Total Loans	$	11,507,160	$	11,461,528	$	9,172	$	5,981	$	30,479	$	45,632	0.40	%
Delinquency %			99.60%		0.08%		0.05%		0.26%		0.40%

September 30, 2017	Loans Receivable		Days Delinquent Based on $ Amount of Loans										% based on $
Type of Loan	Net of Loans In Process		Current		30		60		90		Total Delinquent
	(In thousands, except ratio data)
Single-family residential	$	5,709,690	$	5,671,933	$	10,925	$	4,810	$	22,022	$	37,757	0.66	%
Construction	793,959		793,959		—		—		—		—		—
Construction - custom	277,599		277,508		—		—		91		91		0.03
Land - acquisition & development	104,856		104,526		—		—		330		330		0.31
Land - consumer lot loans	104,335		103,389		112		680		154		946		0.91
Multi-family	1,303,119		1,302,720		5		255		139		399		0.03
Commercial real estate	1,434,610		1,432,052		507		—		2,051		2,558		0.18
Commercial & industrial	1,093,360		1,092,735		—		51		574		625		0.06
HELOC	144,850		143,974		221		342		313		876		0.60
Consumer	85,075		84,644		245		107		79		431		0.51
Total Loans	$	11,051,453	$	11,007,440	$	12,015	$	6,245	$	25,753	$	44,013	0.40	%
Delinquency %			99.60%		0.11%		0.06%		0.23%		0.40%

The percentage of total delinquent loans was 0.40% as of June 30, 2018 and 0.40% as of September 30, 2017. There are no loans greater than 90 days delinquent and still accruing interest as of either date.

The following table provides information related to loans restructured in a troubled debt restructuring ("TDR") during the periods presented:

	Three Months Ended June 30,
	2018					2017
		Pre-Modification		Post-Modification			Pre-Modification		Post-Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number of	Recorded		Recorded		Number of	Recorded		Recorded
	Contracts	Investment		Investment		Contracts	Investment		Investment
		($ in thousands)					($ in thousands)
Troubled Debt Restructurings:
Single-family residential	5	$	714	$	714	11	$	1,836	$	1,836
HELOC	1	75		75		—	—		—
	6	$	789	$	789	11	$	1,836	$	1,836

	Nine Months Ended June 30,
	2018					2017
		Pre-Modification		Post-Modification			Pre-Modification		Post-Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number of	Recorded		Recorded		Number of	Recorded		Recorded
	Contracts	Investment		Investment		Contracts	Investment		Investment
		($ in thousands)					($ in thousands)
Troubled Debt Restructurings:
Single-family residential	25	$	4,909	$	4,909	31	$	5,682	$	5,682
Land - consumer lot loans	—	—		—		1	204		204
Commercial & Industrial	3	7,256		7,256		—	—		—
HELOC	1	75		75		1	228		228
	29	$	12,240	$	12,240	33	$	6,114	$	6,114

The following table provides information on payment defaults occurring during the periods presented where the loan had been modified in a TDR within 12 months of the payment default.

	Three Months Ended June 30,
	2018			2017
	Number of	Recorded		Number of	Recorded
	Contracts	Investment		Contracts	Investment
	($ in thousands)			($ in thousands)
Trouble Debt Restructurings That Subsequently Defaulted:
Single-family residential	—	$	—	3	$	401
	—	$	—	3	$	401

	Nine Months Ended June 30,
	2018			2017
	Number of	Recorded		Number of	Recorded
	Contracts	Investment		Contracts	Investment
	($ in thousands)			($ in thousands)
Troubled Debt Restructurings That Subsequently Defaulted:
Single-family residential	2	$	206	16	$	3,586
Commercial real estate	—	—		2	267
	2	$	206	18	$	3,853

Most loans restructured in TDRs are accruing and performing loans where the borrower has proactively approached the Company about modification due to temporary financial difficulties. As of June 30, 2018, 96.7% of the Company's $171,603,000 in TDRs were classified as performing. Each request for modification is individually evaluated for merit and likelihood of success. The concession granted in a loan modification is typically a payment reduction through a rate reduction of between 100 to 200 basis points for a specific term, usually six to twenty four months. Interest-only payments may also be approved during the modification period. Principal forgiveness is not an available option for restructured loans. As of June 30, 2018, single-family residential loans comprised 89.4% of TDRs.

The Company reserves for restructured loans within its allowance for loan loss methodology by taking into account the following performance indicators: 1) time since modification, 2) current payment status and 3) geographic area.

In May 2018, the Bank entered into an agreement with the FDIC to early terminate its remaining FDIC loss share agreements, which relate to the Horizon Bank and Home Valley Bank acquisitions. The Bank paid $39,906,000 to settle the FDIC clawback liability and this amount is consistent with the liability on the balance sheet as of March 31, 2018 so no additional gain or loss was recorded in the three months endedJune 30, 2018. Under the termination agreement, all rights and obligations of the Bank and the FDIC have been resolved and completed. As such, future recoveries, gains, losses and expenses related to the previously covered assets will now be recognized entirely by the Bank and the FDIC will no longer share in such gains or losses.

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Allowance for Losses on Loans

9 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Allowance for Losses on Loans

Allowance for Losses on Loans

The following tables summarize the activity in the allowance for loan losses.

Three Months Ended June 30, 2018	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	34,144	$	(299	)	$	283	$	273		$	34,401
Construction	27,389		—			—		2,744			30,133
Construction - custom	2,081		—			—		(67		)	2,014
Land - acquisition & development	7,622		(12		)	2,699		(2,609		)	7,700
Land - consumer lot loans	2,853		(1		)	35		20			2,907
Multi-family	7,982		—			—		109			8,091
Commercial real estate	11,588		—			91		(100		)	11,579
Commercial & industrial	29,330		(3,317		)	433		1,069			27,515
HELOC	802		—			—		9			811
Consumer	3,785		(45		)	223		(448		)	3,515
	$	127,576	$	(3,674	)	$	3,764	$	1,000		$	128,666

Three Months Ended June 30, 2017	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	37,164	$	(267	)	$	81	$	1,133		$	38,111
Construction	25,061		—			—		(3,195		)	21,866
Construction - custom	1,176		—			—		714			1,890
Land - acquisition & development	6,669		—			863		(315		)	7,217
Land - consumer lot loans	2,513		—			118		(83		)	2,548
Multi-family	7,929		—			—		(17		)	7,912
Commercial real estate	10,772		—			164		411			11,347
Commercial & industrial	28,365		—			154		653			29,172
HELOC	826		—			1		50			877
Consumer	1,447		(144		)	282		(296		)	1,289
	$	121,922	$	(411	)	$	1,663	$	(945	)	$	122,229

Nine Months Ended June 30, 2018	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	36,892	$	(1,049	)	$	615	$	(2,057	)	$	34,401
Construction	24,556		—			—		5,577			30,133
Construction - custom	1,944		(50		)	—		120			2,014
Land - acquisition & development	6,829		(12		)	7,278		(6,395		)	7,700
Land - consumer lot loans	2,649		(67		)	35		290			2,907
Multi-family	7,862		—			—		229			8,091
Commercial real estate	11,818		(36		)	92		(295		)	11,579
Commercial & industrial	28,524		(3,433		)	603		1,821			27,515
HELOC	855		(1		)	—		(43		)	811
Consumer	1,144		(217		)	785		1,803			3,515
	$	123,073	$	(4,865	)	$	9,408	$	1,050		$	128,666

Nine Months Ended June 30, 2017	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	37,796	$	(763	)	$	455	$	623		$	38,111
Construction	19,838		—			—		2,028			21,866
Construction - custom	1,080		(3		)	—		813			1,890
Land - acquisition & development	6,023		(63		)	9,092		(7,835		)	7,217
Land - consumer lot loans	2,535		(17		)	368		(338		)	2,548
Multi-family	6,925		—			—		987			7,912
Commercial real estate	8,588		(11		)	1,684		1,086			11,347
Commercial & industrial	28,008		(163		)	1,096		231			29,172
HELOC	813		(90		)	2		152			877
Consumer	1,888		(798		)	975		(776		)	1,289
	$	113,494	$	(1,908	)	$	13,672	$	(3,029	)	$	122,229

The Company recorded a provision for loan losses of $1,000,000 for the three months endedJune 30, 2018, compared to no provision for loan losses for the three months endedJune 30, 2017. A provision for loan losses of $50,000 and a release of allowance for loan losses of $1,600,000 was recorded during the nine months endedJune 30, 2018 and June 30, 2017, respectively. Reserving for new loan originations as the loan portfolio grows has been largely offset by recoveries of previously charged-off loans. Recoveries, net of charge-offs, totaled $90,000 for the three months endedJune 30, 2018, compared to net recoveries of $1,252,000 during the three months endedJune 30, 2017. Recoveries, net of charge-offs, totaled $4,543,000 for the nine months endedJune 30, 2018, compared to net recoveries of $11,764,000 during the nine months endedJune 30, 2017.

Non-performing assets were $71,859,000, or 0.46%, of total assets at June 30, 2018, compared to $70,238,000, or 0.46%, of total assets at September 30, 2017. Non-accrual loans were $60,584,000 at June 30, 2018, compared to $49,580,000 at September 30, 2017. Delinquencies, as a percent of total loans, were 0.40% at June 30, 2018, compared to 0.40% at September 30, 2017.

The reserve for unfunded commitments was $6,750,000 as of June 30, 2018, which is a decrease from $7,750,000 at September 30, 2017.

Management believes the allowance for loan losses plus the reserve for unfunded commitments, totaling $135,416,000, or 1.06% of gross loans as of June 30, 2018, is sufficient to absorb estimated losses inherent in the portfolio of loans and unfunded commitments.

The following tables show loans collectively and individually evaluated for impairment and the related allocation of general and specific reserves.

June 30, 2018	Loans Collectively Evaluated for Impairment						Loans Individually Evaluated for Impairment
	Allowance Allocation		Recorded Investment of Loans		Ratio		Allowance Allocation		Recorded Investment of Loans		Ratio
	(In thousands, except ratio data)						(In thousands, except ratio data)
Single-family residential	$	34,401	$	5,726,737	0.6	%	$	—	$	24,139	—	%
Construction	30,133		1,007,676		3.0		—		4,563		—
Construction - custom	2,014		285,858		0.7		—		—		—
Land - acquisition & development	7,700		118,323		6.5		—		3,184		—
Land - consumer lot loans	2,907		97,310		3.0		—		833		—
Multi-family	8,086		1,343,468		0.6		5		3,045		0.2
Commercial real estate	11,502		1,388,029		0.8		77		31,805		0.2
Commercial & industrial	27,515		1,087,664		2.5		—		45,400		—
HELOC	811		134,522		0.6		—		562		—
Consumer	3,515		188,004		1.9		—		26		—
	$	128,584	$	11,377,591	1.1	%	$	82	$	113,557	0.1	%

September 30, 2017	Loans Collectively Evaluated for Impairment						Loans Individually Evaluated for Impairment
	Allowance Allocation		Recorded Investment of Loans		Ratio		Allowance Allocation		Recorded Investment of Loans		Ratio
	(In thousands, except ratio data)						(In thousands, except ratio data)
Single-family residential	$	36,892	$	5,713,576	0.7	%	$	—	$	5,552	—	%
Construction	24,556		793,958		3.1		—		—		—
Construction - custom	1,944		277,495		0.7		—		105		—
Land - acquisition & development	6,828		104,767		6.5		1		89		1.0
Land - consumer lot loans	2,649		96,337		2.8		—		171		—
Multi-family	7,857		1,302,625		0.6		5		493		1.0
Commercial real estate	11,698		1,391,668		0.8		120		21,765		0.6
Commercial & industrial	28,524		1,093,210		2.6		—		81		—
HELOC	855		141,689		0.6		—		215		—
Consumer	1,144		84,887		1.4		—		82		—
	$	122,947	$	11,000,212	1.1	%	$	126	$	28,553	0.4	%

As of June 30, 2018, $128,584,000 of the allowance was calculated under the Company's general allowance methodology and the remaining $82,000 was specific reserves on loans deemed to be individually impaired. As of September 30, 2017, $122,947,000 of the allowance was calculated under the Company's general allowance methodology and the remaining $126,000 was specific reserves on loans deemed to be individually impaired.

The Company has an asset quality review function that analyzes its loan portfolio and reports the results of the review to its Board of Directors on a quarterly basis. The single-family residential, HELOC and consumer portfolios are evaluated based on their performance as a pool of loans, since no single loan is individually significant or judged by its risk rating, size or potential risk of loss. The construction, land, multi-family, commercial real estate and commercial and industrial loans are risk rated on a loan by loan basis to determine the relative risk inherent in specific borrowers or loans. Based on that risk rating, the loans are assigned a grade and classified as follows:

• Pass – the credit does not meet one of the definitions below.

• Special mention – A special mention credit is considered to be currently protected from loss but is potentially weak. No loss of principal or interest is foreseen; however, proper supervision and management attention is required to deter further deterioration in the credit. Assets in this category constitute some undue and unwarranted credit risk but not to the point of justifying a risk rating of substandard. The credit risk may be relatively minor yet constitutes an unwarranted risk in light of the circumstances surrounding a specific asset.

• Substandard – A substandard credit is an unacceptable credit. Additionally, repayment in the normal course is in jeopardy due to the existence of one or more well defined weaknesses. In these situations, loss of principal is likely if the weakness is not corrected. A substandard asset is inadequately protected by the current sound worth and paying capacity of the borrower or of the collateral pledged, if any. Assets so classified will have a well-defined weakness or weaknesses that jeopardize the collection or liquidation of the debt. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets risk rated substandard.

• Doubtful – A credit classified doubtful has all the weaknesses inherent in one classified substandard with the added characteristic that the weakness makes collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The probability of loss is high, but because of certain important and reasonably specific pending factors that may work to the advantage and strengthening of the asset, its classification as an estimated loss is deferred until its more exact status may be determined. Pending factors include proposed merger, acquisition, or liquidation procedures, capital injection, perfecting liens on additional collateral, and refinancing plans.

• Loss – Credits classified loss are considered uncollectible and of such little value that their continuance as a bankable asset is not warranted. This classification does not mean that the asset has absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off this asset even though partial recovery may be affected in the future. Losses should be taken in the period in which they are identified as uncollectible. Partial charge-off versus full charge-off may be taken if the collateral offers some identifiable protection.

The following tables provide information on loans based on risk rating categories as defined above.

June 30, 2018	Internally Assigned Grade
	Pass			Special mention			Substandard			Doubtful			Loss			Total Gross Loans
	(In thousands, except ratio data)
Loan type
Single-family residential	$	5,713,075		$	—		$	32,523		$	—		$	—		$	5,745,598
Construction	1,880,415			55			4,564			—			—			1,885,034
Construction - custom	612,688			—			—			—			—			612,688
Land - acquisition & development	147,864			—			3,072			—			—			150,936
Land - consumer lot loans	102,476			—			642			—			—			103,118
Multi-family	1,343,950			—			2,584			—			—			1,346,534
Commercial real estate	1,402,581			4,900			27,937			—			—			1,435,418
Commercial & industrial	1,084,175			9,582			39,318			—			—			1,133,075
HELOC	136,122			—			644			—			—			136,766
Consumer	188,093			—			32			—			—			188,125
Total gross loans	$	12,611,439		$	14,537		$	111,316		$	—		$	—		$	12,737,292
Total grade as a % of total gross loans	99.0		%	0.1		%	0.9		%	—		%	—		%

September 30, 2017	Internally Assigned Grade
	Pass			Special mention			Substandard			Doubtful			Loss			Total Gross Loans
	(In thousands, except ratio data)
Loan type
Single-family residential	$	5,671,229		$	—		$	39,775		$	—		$	—		$	5,711,004
Construction	1,594,926			—			3,070			—			—			1,597,996
Construction - custom	602,540			—			91			—			—			602,631
Land - acquisition & development	123,028			207			1,073			—			—			124,308
Land - consumer lot loans	103,787			—			618			—			—			104,405
Multi-family	1,295,261			5,795			2,092			—			—			1,303,148
Commercial real estate	1,391,996			5,944			36,670			—			—			1,434,610
Commercial & industrial	1,054,972			14,814			23,574			—			—			1,093,360
HELOC	144,229			—			621			—			—			144,850
Consumer	84,984			—			91			—			—			85,075
Total gross loans	$	12,066,952		$	26,760		$	107,675		$	—		$	—		$	12,201,387
Total grade as a % of total gross loans	98.9		%	0.2		%	0.9		%	—		%	—		%

The following tables provide information on gross loans based on borrower payment activity.

June 30, 2018	Performing Loans				Non-Performing Loans
	Amount		% of Total Gross  Loans		Amount		% of Total Gross  Loans
	(In thousands, except ratio data)
Single-family residential	$	5,719,479	99.5	%	$	26,119	0.5	%
Construction	1,883,193		99.9		1,841		0.1
Construction - custom	612,688		100.0		—		—
Land - acquisition & development	149,179		98.8		1,757		1.2
Land - consumer lot loans	102,476		99.4		642		0.6
Multi-family	1,346,534		100.0		—		—
Commercial real estate	1,425,734		99.3		9,684		0.7
Commercial & industrial	1,113,199		98.2		19,876		1.8
HELOC	136,129		99.5		637		0.5
Consumer	188,097		100.0		28		—
	$	12,676,708	99.5	%	$	60,584	0.5	%

September 30, 2017	Performing Loans				Non-Performing Loans
	Amount		% of Total Gross  Loans		Amount		% of Total Gross  Loans
	(In thousands, except ratio data)
Single-family residential	$	5,683,074	99.5	%	$	27,930	0.5	%
Construction	1,597,996		100.0		—		—
Construction - custom	602,540		99.9		91		0.1
Land - acquisition & development	124,012		99.8		296		0.2
Land - consumer lot loans	103,800		99.4		605		0.6
Multi-family	1,303,009		99.9		139		0.1
Commercial real estate	1,422,795		99.2		11,815		0.8
Commercial & industrial	1,085,278		99.3		8,082		0.7
HELOC	144,319		99.6		531		0.4
Consumer	84,984		99.9		91		0.1
	$	12,151,807	99.6	%	$	49,580	0.4	%

The following tables provide information on impaired loan balances and the related allowances by loan types.

June 30, 2018	Recorded Investment		Unpaid Principal Balance		Related Allowance			Average Recorded Investment (Year-To-Date)
	(In thousands)
Impaired loans with no related allowance recorded:
Single-family residential	$	22,114	$	23,310	$	—		$	21,944
Construction	4,843		4,933		—			2,928
Construction - custom	—		—		—			37
Land - acquisition & development	3,073		3,120		—			1,741
Land - consumer lot loans	455		490		—			337
Multi-family	2,606		2,606		—			1,403
Commercial real estate	26,818		31,372		—			22,338
Commercial & industrial	35,427		35,736		—			19,507
HELOC	562		655		—			486
Consumer	26		68		—			56
	95,924		102,290		—			70,777
Impaired loans with an allowance recorded:
Single-family residential	153,356		156,644		2,792			167,211
Land - acquisition & development	—		—		—			23
Land - consumer lot loans	5,136		5,502		—			6,832
Multi-family	461		461		5			477
Commercial real estate	7,162		7,975		77			11,492
Commercial & industrial	3,924		6,964		—			4,547
HELOC	1,491		1,575		—			1,500
Consumer	73		73		—			87
	171,603		179,194		2,874		(1)	192,169
Total impaired loans:
Single-family residential	175,470		179,954		2,792			189,155
Construction	4,843		4,933		—			2,928
Construction - custom	—		—		—			37
Land - acquisition & development	3,073		3,120		—			1,764
Land - consumer lot loans	5,591		5,992		—			7,169
Multi-family	3,067		3,067		5			1,880
Commercial real estate	33,980		39,347		77			33,830
Commercial & industrial	39,351		42,700		—			24,054
HELOC	2,053		2,230		—			1,986
Consumer	99		141		—			143
	$	267,527	$	281,484	$	2,874	(1)	$	262,946

(1) Includes $82,000 of specific reserves and $2,792,000 included in the general reserves.

September 30, 2017	Recorded Investment		Unpaid Principal Balance		Related Allowance			Average Recorded Investment (Year-To-Date)
	(In thousands)
Impaired loans with no related allowance recorded:
Single-family residential	$	21,325	$	23,880	$	—		$	19,371
Construction - custom	148		165		—			231
Land - acquisition & development	330		8,208		—			176
Land - consumer lot loans	208		330		—			431
Multi-family	139		3,231		—			748
Commercial real estate	12,890		22,487		—			11,466
Commercial & industrial	8,279		14,321		—			7,425
HELOC	490		1,212		—			487
Consumer	88		1,433		—			57
	43,897		75,267		—			40,392
Impaired loans with an allowance recorded:
Single-family residential	181,941		186,167		4,030			204,723
Land - acquisition & development	90		90		1			576
Land - consumer lot loans	7,949		8,526		—			8,976
Multi-family	493		493		5			1,024
Commercial real estate	15,079		16,707		120			16,991
Commercial & industrial	—		—		—			297
HELOC	1,728		1,806		—			1,451
Consumer	97		284		—			100
	207,377		214,073		4,156		(1)	234,138
Total impaired loans:
Single-family residential	203,266		210,047		4,030			224,094
Construction - custom	148		165		—			231
Land - acquisition & development	420		8,298		1			752
Land - consumer lot loans	8,157		8,856		—			9,407
Multi-family	632		3,724		5			1,772
Commercial real estate	27,969		39,194		120			28,457
Commercial & industrial	8,279		14,321		—			7,722
HELOC	2,218		3,018		—			1,938
Consumer	185		1,717		—			157
	$	251,274	$	289,340	$	4,156	(1)	$	274,530

(1) Includes $126,000 of specific reserves and $4,030,000 included in the general reserves.

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Fair Value Measurements

9 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

FASB ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active exchange markets that the entity has the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active and other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

The Company has established and documented the process for determining the fair values of its assets and liabilities, where applicable. Fair value is based on quoted market prices, when available, for identical or similar assets or liabilities. In the absence of quoted market prices, fair value is determined using valuation models or third-party appraisals. The following is a description of the valuation methodologies used to measure and report the fair value of financial assets and liabilities on a recurring or nonrecurring basis.

Measured on a Recurring Basis

Available-for-Sale Securities and Derivative Contracts

Securities available for sale are recorded at fair value on a recurring basis. The fair value of debt securities are priced using model pricing based on the securities' relationship to other benchmark quoted prices as provided by an independent third party, and under GAAP are considered a Level 2 input method. Securities that are traded on active exchanges, including the Company's equity securities, are measured using the closing price in an active market and are considered a Level 1 input method.

The Company offers interest rate swaps to its variable rate borrowers who want to manage their interest rate risk. At the same time, the Company enters into the opposite trade with a counter party to offset its interest rate risk. The Company has also entered into commercial loan hedges as well as borrowings hedges using interest rate swaps. The fair value of these interest rate swaps are estimated by a third party pricing service using a discounted cash flow technique. These are considered a Level 2 input method.

The following tables present the balance of assets and liabilities measured at fair value on a recurring basis.

	June 30, 2018
	Level 1		Level 2		Level 3		Total
	(In thousands)
Financial Assets
Available-for-sale securities:
Equity securities	$	491	$	—	$	—	$	491
U.S. government and agency securities	—		216,009		—		216,009
Municipal bonds	—		22,755		—		22,755
Corporate debt securities	—		184,232		—		184,232
Mortgage-backed securities
Agency pass-through certificates	—		828,449		—		828,449
Commercial MBS	—		3,465		—		3,465
Total available-for-sale securities	491		1,254,910		—		1,255,401
Interest rate contracts	—		10,141		—		10,141
Commercial loan hedges	—		3,005		—		3,005
Borrowings hedges	—		19,193		—		19,193
Total financial assets	$	491	$	1,287,249	$	—	$	1,287,740
Financial Liabilities
Interest rate contracts	$	—	$	10,141	$	—	$	10,141
Total financial liabilities	$	—	$	10,141	$	—	$	10,141

There were no transfers between, into and/or out of Levels 1, 2 or 3 during the nine months endedJune 30, 2018.

	September 30, 2017
	Level 1		Level 2		Level 3		Total
	(In thousands)
Financial Assets
Available-for-sale securities:
Equity securities	$	522	$	—	$	—	$	522
U.S. government and agency securities	—		211,077		—		211,077
Municipal bonds	—		26,624		—		26,624
Corporate debt securities	—		185,298		—		185,298
Mortgage-backed securities
Agency pass-through certificates	—		834,297		—		834,297
Commercial MBS	—		8,391		—		8,391
Total available-for-sale securities	522		1,265,687		—		1,266,209
Interest rate contracts	—		1,139		—		1,139
Total financial assets	$	522	$	1,266,826	$	—	$	1,267,348
Financial Liabilities
Interest rate contracts	$	—	$	1,139	$	—	$	1,139
Commercial loan hedges	—		174		—		174
Borrowings hedges	—		1,693		—		1,693
Total financial liabilities	$	—	$	3,006	$	—	$	3,006

There were no transfers between, into and/or out of Levels 1, 2 or 3 during the fiscal year ended September 30, 2017.

Measured on a Nonrecurring Basis

Impaired Loans & Real Estate Owned

Real estate owned ("REO") consists principally of properties acquired through foreclosure. From time to time, and on a nonrecurring basis, adjustments using fair value measurements are recorded to reflect increases or decreases based on the discounted cash flows, the current appraisal or estimated value of the collateral, but only up to the fair value of the real estate owned as of the initial transfer date less selling costs.

When management determines that the fair value of the collateral or the real estate owned requires additional adjustments, either as a result of an updated appraised value or when there is no observable market price, the Company classifies the impaired loan or real estate owned as Level 3. Level 3 assets recorded at fair value on a nonrecurring basis at June 30, 2018 included loans for which a specific reserve allowance was established or a partial charge-off was recorded based on the fair value of collateral, as well as real estate owned where the fair value of the property was less than the cost basis.

The following tables present the aggregated balance of assets that were measured at fair value on a nonrecurring basis at June 30, 2018 and June 30, 2017, and the total gains (losses) resulting from those fair value adjustments for the three and nine months endedJune 30, 2018 and June 30, 2017. The estimated fair value measurements are shown gross of estimated selling costs.

	June 30, 2018								Three Months Ended June 30, 2018			Nine Months Ended June 30, 2018
	Level 1		Level  2		Level  3		Total		Total Gains (Losses)
	(In thousands)								(In thousands)
Impaired loans (1)	$	—	$	—	$	15,125	$	15,125	$	(3,120	)	$	(4,094	)
Real estate owned (2)	—		—		6,354		6,354		(97		)	(656		)
Balance at end of period	$	—	$	—	$	21,479	$	21,479	$	(3,217	)	$	(4,750	)

(1) The gains (losses) represent remeasurements of collateral-dependent loans.

(2) The gains (losses) represent aggregate writedowns and charge-offs on REO.

	June 30, 2017								Three Months Ended June 30, 2017			Nine Months Ended June 30, 2017
	Level 1		Level  2		Level  3		Total		Total Gains (Losses)
	(In thousands)								(In thousands)
Impaired loans (1)	$	—	$	—	$	7,807	$	7,807	$	(305	)	$	(1,666	)
Real estate owned (2)	—		—		9,777		9,777		(467		)	(1,087		)
Balance at end of period	$	—	$	—	$	17,584	$	17,584	$	(772	)	$	(2,753	)

(1) The gains (losses) represent remeasurements of collateral-dependent loans.

(2) The gains (losses) represent aggregate writedowns and charge-offs on REO.

Impaired loans - The Company adjusts the carrying amount of impaired loans when there is evidence of probable loss and the expected fair value of the loan is less than its contractual amount. The amount of the impairment may be determined based on the estimated present value of future cash flows or the fair value of the underlying collateral. Impaired loans with a specific reserve allowance based on cash flow analysis or the value of the underlying collateral are classified as Level 3 assets.

The evaluations for impairment are prepared by the Company's Problem Loan Review Committee, which is chaired by the Chief Credit Officer and includes the Loan Review manager and Special Credits manager, as well as senior credit officers, division managers and group executives, as applicable. These evaluations are performed in conjunction with the quarterly allowance for loan loss process.

Applicable loans included in the previous quarter's review are reevaluated and if their values are materially different from the prior quarter evaluation, the underlying information (loan balance and collateral value) are compared. Material differences are evaluated for reasonableness and discussions are held between the relationship manager and their division manager to understand the difference and determine if any adjustment is necessary.

The inputs are developed and substantiated on a quarterly basis, based on current borrower developments, market conditions and collateral values. The following methods are used to value impaired loans:

• The fair value of the collateral, which may take the form of real estate or personal property, is based on internal estimates, field observations, assessments provided by third-party appraisers and other valuation models. The Company performs or reaffirms valuations of collateral-dependent impaired loans at least annually. Adjustments are made if management believes that more recent information is available and relevant with respect to the fair value of the collateral.

• The present value of the expected future cash flows of the loans is used for measurement of non-collateral-dependent loans to test for impairment.

Real estate owned - When a loan is reclassified from loan status to real estate owned due to the Company taking possession of the collateral, a special credits officer, along with the special credits manager, obtains a valuation, which may include appraisals or third-party price opinions, which is used to establish the fair value of the underlying collateral. The determined fair value, less selling costs, becomes the carrying value of the REO asset.

The fair value of REO assets is re-evaluated quarterly and the REO asset is adjusted to reflect the fair value as necessary. After foreclosure, the valuations are updated periodically and current market conditions may require the assets to be written down further or up to the cost basis established on the date of transfer. The carrying balance of REO assets are also written down once a bona fide offer is contractually accepted, through execution of a purchase and sale agreement, where the accepted price is lower than the cost established on the transfer date.

Fair Values of Financial Instruments

FASB ASC 825 requires disclosure of fair value information about financial instruments, whether or not recognized on the statement of financial condition, for which it is practicable to estimate those values. Certain financial instruments and all non-financial instruments are excluded from the disclosure requirements. Accordingly, the aggregate fair value estimates presented do not reflect the underlying fair value of the Company. Although management is not aware of any factors that would materially affect the estimated fair value amounts presented below, such amounts have not been comprehensively revalued for purposes of these financial statements since the dates shown, and therefore, estimates of fair value subsequent to those dates may differ significantly from the amounts presented below.

		June 30, 2018				September 30, 2017
	Level in Fair Value Hierarchy	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
		($ in thousands)
Financial assets
Cash and cash equivalents	1	$	345,919	$	345,919	$	313,070	$	313,070
Available-for-sale securities
Equity securities	1	491		491		522		522
U.S. government and agency securities	2	216,009		216,009		211,077		211,077
Municipal bonds	2	22,755		22,755		26,624		26,624
Corporate debt securities	2	184,232		184,232		185,298		185,298
Mortgage-backed securities
Agency pass-through certificates	2	828,449		828,449		834,297		834,297
Commercial MBS	2	3,465		3,465		8,391		8,391
Total available-for-sale securities		1,255,401		1,255,401		1,266,209		1,266,209
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	2	1,655,450		1,595,034		1,646,856		1,635,913
Commercial MBS	2	15,000		15,000		—		—
Total held-to-maturity securities		1,670,450		1,610,034		1,646,856		1,635,913
Loans receivable	3	11,325,971		11,492,022		10,882,622		11,247,586
FDIC indemnification asset	3	—		—		8,968		8,564
FHLB and FRB stock	2	128,790		128,790		122,990		122,990
Other assets - interest rate contracts	2	10,141		10,141		1,139		1,139
Other assets - commercial loan hedges	2	3,005		3,005		—		—
Other assets - borrowings hedges	2	19,193		19,193		—		—
Financial liabilities
Customer accounts	2	11,287,473		10,924,562		10,835,008		10,411,686
FHLB advances	2	2,370,000		2,365,478		2,225,000		2,266,791
Other liabilities - interest rate contracts	2	10,141		10,141		1,139		1,139
Other liabilities - commercial loan hedges	2	—		—		174		174
Other liabilities - borrowings hedges	2	—		—		1,693		1,693

The following methods and assumptions were used to estimate the fair value of financial instruments:

Cash and cash equivalents – The carrying amount of these items is a reasonable estimate of their fair value.

Available-for-sale securities and held-to-maturity securities – Securities at fair value are primarily priced using model pricing based on the securities' relationship to other benchmark quoted prices as provided by an independent third party, and are considered a Level 2 input method. Equity securities that are exchange traded are considered a Level 1 input method.

Loans receivable – For certain homogeneous categories of loans, such as fixed- and variable-rate residential mortgages, fair value is estimated for securities backed by similar loans, adjusted for differences in loan characteristics, using the same methodology described above for AFS and HTM securities. The fair value of other loan types is estimated by discounting the future cash flows and estimated prepayments using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining term. Some loan types were valued at carrying value because of their floating rate or expected maturity characteristics. Net deferred loan fees are not included in the fair value calculation but are included in the carrying amount.

FHLB and FRB stock – The fair value is based upon the par value of the stock that equates to its carrying value.

Customer accounts – The fair value of demand deposits, savings accounts, and money market accounts is the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit is estimated by discounting the estimated future cash flows using the rates currently offered for deposits with similar remaining maturities.

FHLB advances – The fair value of FHLB advances and other borrowings is estimated by discounting the estimated future cash flows using rates currently available to the Company for debt with similar remaining maturities.

Interest rate contracts – The Company offers interest rate swaps to its variable rate borrowers who want to manage their interest rate risk. At the same time, the Company enters into the opposite trade with a counterparty to offset its interest rate risk. The fair value of these interest rate swaps is estimated by a third party pricing service using a discounted cash flow technique.

Commercial loan hedges – The fair value of the interest rate swaps is estimated by a third party pricing service using a discounted cash flow technique.

Borrowings hedges – The fair value of the interest rate swaps is estimated by a third party pricing service using a discounted cash flow technique.

The following tables provide a reconciliation of amortized cost to fair value of available-for-sale and held-to-maturity securities.

	June 30, 2018
	Amortized Cost		Gross Unrealized					Fair Value		Yield
			Gains		Losses
	($ in thousands)
Available-for-sale securities
U.S. government and agency securities due
5 to 10 years	$	63,986	$	—	$	(1,678	)	$	62,308	2.41	%
Over 10 years	153,928		122		(349		)	153,701		2.71
Equity securities due
1 to 5 years	500		—		(9		)	491		1.80
Corporate debt securities due
1 to 5 years	113,727		1,687		(273		)	115,141		3.60
5 to 10 years	69,964		—		(873		)	69,091		3.23
Municipal bonds due
1 to 5 years	1,390		—		(10		)	1,380		2.05
Over 10 years	20,328		1,047		—			21,375		6.45
Mortgage-backed securities
Agency pass-through certificates	836,777		1,563		(9,891		)	828,449		3.34
Commercial MBS	3,460		5		—			3,465		4.27
	1,264,060		4,424		(13,083		)	1,255,401		3.28
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	1,655,450		635		(61,051		)	1,595,034		3.16
Commercial MBS	15,000		—		—			15,000		2.94
	1,670,450		635		(61,051		)	1,610,034		3.16
	$	2,934,510	$	5,059	$	(74,134	)	$	2,865,435	3.21	%

	September 30, 2017
	Amortized Cost		Gross Unrealized						Fair Value		Yield
			Gains		Losses
	($ in thousands)
Available-for-sale securities
U.S. government and agency securities due
Within 1 year	$	9,300	$	146		$	—		$	9,446	10.38	%
1 to 5 years	5,688		2			—			5,690		1.51
5 to 10 years	69,108		—			(1,238		)	67,870		1.93
Over 10 years	127,936		353			(218		)	128,071		1.92
Equity securities
1 to 5 years	500		22			—			522		1.80
Corporate bonds due
1 to 5 years	63,622		2,083			—			65,705		2.96
5 to 10 years	119,960		210			(577		)	119,593		2.62
Municipal bonds due
Within 1 year	2,344		10			—			2,354		1.23
1 to 5 years	1,367		55			—			1,422		2.05
Over 10 years	20,343		2,505			—			22,848		6.45
Mortgage-backed securities
Agency pass-through certificates	828,069		8,402			(2,174		)	834,297		2.96
Commercial MBS	8,350		41			—			8,391		3.31
	1,256,587		13,829			(4,207		)	1,266,209		2.86
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	1,646,856		7,143			(18,086		)	1,635,913		3.14
	1,646,856		7,143			(18,086		)	1,635,913		3.14
	$	2,903,443	$	20,972		$	(22,293	)	$	2,902,122	3.02	%

For available-for-sale investment securities, there were no sales during the nine months endedJune 30, 2018 and sales totaling $350,890,000 during the nine months endedJune 30, 2017. There were purchases of $166,696,000 of available-for-sale investment securities during the nine months endedJune 30, 2018 and no purchases during the nine months endedJune 30, 2017. For held-to-maturity investment securities, there were purchases totaling $170,836,000 during the nine months endedJune 30, 2018 and purchases of $415,729,000 during the nine months endedJune 30, 2017. There were no sales of held-to-maturity investment securities during either period. Substantially all of the agency mortgage-backed securities have contractual due dates that exceed 10 years.

The following tables show the unrealized gross losses and fair value of securities as of June 30, 2018 and September 30, 2017, by length of time that individual securities in each category have been in a continuous loss position. The decline in fair value since purchase is attributable to changes in interest rates. Because the Company does not intend to sell these securities and does not consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other than temporarily impaired.

June 30, 2018	Less than 12 months					12 months or more					Total
	Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value
	(In thousands)
Corporate debt securities	$	—		$	—	$	(1,146	)	$	118,818	$	(1,146	)	118,818
Municipal bonds	(10		)	1,380		—			—		(10		)	1,380
U.S. government and agency securities	(64		)	43,310		(1,963		)	120,006		(2,027		)	163,316
Equity securities	(9		)	491		—			—		(9		)	491
Agency pass-through certificates	(13,696		)	706,627		(57,246		)	1,401,192		(70,942		)	2,107,819
	$	(13,779	)	$	751,808	$	(60,355	)	$	1,640,016	$	(74,134	)	$	2,391,824

September 30, 2017	Less than 12 months					12 months or more					Total
	Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value
	(In thousands)
Corporate debt securities	$	—		$	—	$	(577	)	$	49,423	$	(577	)	$	49,423
U.S. government and agency securities	(759		)	24,400		(697		)	96,195		(1,456		)	120,595
Agency pass-through certificates	(17,683		)	1,163,358		(2,577		)	249,304		(20,260		)	1,412,662
	$	(18,442	)	$	1,187,758	$	(3,851	)	$	394,922	$	(22,293	)	$	1,582,680

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Derivatives and Hedging Activities

9 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

The Company periodically enters into certain interest rate swap agreements in order to provide commercial loan customers the ability to convert from variable to fixed interest rate payments, while the Company retains a variable rate loan. Under these agreements, the Company enters into a variable rate loan agreement and a swap agreement with the client. The swap agreement effectively converts the client’s variable rate loan into a fixed rate. The Company enters into a corresponding swap agreement with a third party in order to offset its exposure on the variable and fixed components of the client's swap agreement. The Company had $781,626,000 and $1,035,573,000 notional in interest rate swaps to hedge this exposure as of June 30, 2018 and September 30, 2017, respectively. The interest rate swaps are derivatives under FASB ASC 815, Derivatives and Hedging, with changes in fair value recorded in earnings. There was no net impact to the statement of operations for the nine months endedJune 30, 2018 and 2017 as the changes in value for the asset and liability side of the swaps offset each other.

The Company has entered into interest rate swaps to convert certain existing and future short-term borrowings to fixed rate payments. The primary purpose of these hedges is to mitigate the risk of rising interest rates, specifically LIBOR rates, which are a benchmark for the short-term borrowings. The hedging program qualifies as a cash flow hedge under ASC 815, which provides for offsetting of the recognition of gains and losses of the interest rate swaps and the hedged items. The hedged item is the LIBOR portion of the series of existing or future short-term fixed rate borrowings over the term of the interest rate swap. The change in the fair value of the interest rate swaps is recorded in other comprehensive income. The Company had $700,000,000 notional in interest rate swaps to hedge existing and anticipated future borrowings as of June 30, 2018 and September 30, 2017.

The Company also enters into interest rate swaps to hedge the interest rate risk of individual fixed rate commercial loans and these relationships qualify as fair value hedges under ASC 815, which provides for offsetting of the recognition of gains and losses of the respective interest rate swap and the hedged item. The interest rate swaps in these hedging relationships had a notional amount of $97,927,000 and $52,936,000 as of June 30, 2018 and September 30, 2017, respectively.

The following table presents the fair value and balance sheet classification of derivatives at June 30, 2018 and September 30, 2017:

	Asset Derivatives						Liability Derivatives
	June 30, 2018			September 30, 2017			June 30, 2018			September 30, 2017
	Balance Sheet			Balance Sheet			Balance Sheet			Balance Sheet
	Location	Fair Value		Location	Fair Value		Location	Fair Value		Location	Fair Value
	(In thousands)
Interest rate contracts	Other assets	$	10,141	Other assets	$	1,139	Other liabilities	$	10,141	Other liabilities	$	1,139
Commercial loan hedges	Other assets	3,005		Other assets	—		Other liabilities	—		Other liabilities	174
Borrowings hedges	Other assets	19,193		Other assets	—		Other liabilities	—		Other liabilities	1,693
		$	32,339		$	1,139		$	10,141		$	3,006

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Income Taxes

9 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

On December 22, 2017, the U.S. Government enacted significant new tax legislation (the “Tax Act”). For businesses, the Tax Act reduces the corporate federal tax rate from a maximum of 35% to a flat 21% rate. The corporate tax rate reduction was effective January 1, 2018. Because the Company has a fiscal year end of September 30, the reduced corporate tax rate will result in the application of a blended federal statutory tax rate of 24.53% for its fiscal year 2018 and then 21% thereafter.

Under generally accepted accounting principles, the Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled.

At September 30, 2017, the Company’s deferred tax assets and liabilities were determined based on the then-current enacted federal tax rate of 35%. As a result of the reduction in the corporate income tax rate under the Tax Act, the Company revalued its deferred tax assets and liabilities at December 31, 2017. Deferred tax assets and liabilities expected to be realized in fiscal year 2018 were re-measured using the aforementioned blended rate. All remaining deferred tax assets and liabilities were re-measured using the new statutory federal rate of 21%. These re-measurements resulted in a discrete tax benefit estimate of $5,387,000 that was recognized during the nine months endedJune 30, 2018. The Company’s revaluation of its deferred tax assets and liabilities is subject to further clarification of the Tax Act and refinements of its estimates.

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation

The Company has prepared the consolidated unaudited interim financial statements included in this report. All intercompany transactions and accounts have been eliminated in consolidation. The preparation of financial statements, in conformity with accounting principles generally accepted in the United States of America (“GAAP”), requires management to make estimates and assumptions that affect amounts reported in the financial statements. Actual results could differ from these estimates. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) necessary for a fair presentation are reflected in the interim financial statements. Certain amounts in the financial statements from prior periods have been reclassified to conform to the current financial statement presentation.

The information included in this Form 10-Q should be read in conjunction with the financial statements and related notes in the Company's 2017 Annual Report on Form 10-K (“2017 Annual Financial Statements”). Interim results are not necessarily indicative of results for a full year.

Off-Balance-Sheet Credit Exposures

The Company estimates losses on off-balance-sheet credit exposures by allocating a loss percentage derived from historical loss factors for each asset class.

New Accounting Pronouncements

In August 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The ASU expands and refines hedge accounting for both financial and non-financial risk components, aligns the recognition and presentation of the effects of hedging instruments and hedge items in the financial statements, and includes certain targeted improvements to ease the application of current guidance related to the assessment of hedge effectiveness. The effective date of the new standard for public companies is for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The new standard must be adopted using a modified retrospective transition with a cumulative effect adjustment recorded to opening retained earnings as of the initial adoption date. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities. The ASU shortens the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The ASU is effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. If an entity early adopts in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In February 2017, the FASB issued ASU 2017-05, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets. The ASU clarifies that a financial asset is within the scope of Subtopic 610-20 if it meets the definition of an in substance nonfinancial asset. The amendments also define the term in substance nonfinancial asset. The amendments clarify that nonfinancial assets within the scope of Subtopic 610-20 may include nonfinancial assets transferred within a legal entity to a counterparty. A contract that includes the transfer of ownership interests in one or more consolidated subsidiaries is within the scope of Subtopic 610-20 if substantially all of the fair value of the assets that are promised to the counterparty in a contract is concentrated in nonfinancial assets. The amendments clarify that an entity should identify each distinct nonfinancial asset or in substance nonfinancial asset promised to a counterparty and derecognize each asset when a counterparty obtains control of it. The ASU is effective for public business entities for annual periods beginning after December 15, 2017, and interim periods therein. Entities may use either a full or modified approach to adopt the ASU. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash: a Consensus of the FASB Emerging Issues Task Force. This ASU requires a company’s cash flow statement to explain the changes during a reporting period of the totals for cash, cash equivalents, restricted cash, and restricted cash equivalents. Additionally, amounts for restricted cash and restricted cash equivalents are to be included with cash and cash equivalents if the cash flow statement includes a reconciliation of the total cash balances for a reporting period. This ASU is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2017, with early application permitted. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments. The amendments in this ASU address eight specific cash flow issues with the objective of reducing diversity in practice. The specific issues identified include: debt prepayments or extinguishment costs; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (including bank-owned life insurance policies); distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. This ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period; however, early adoption is permitted. The Company is currently evaluating the guidance to determine its adoption method and does not expect this guidance to have a material impact on its consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses. The amendments in this ASU were issued to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments that are not accounted for at fair value through net income, including loans held for investment, held-to-maturity debt securities, trade and other receivables, net investments in leases and other commitments to extend credit held by a reporting entity at each reporting date. The amendments require that financial assets measured at amortized cost be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The ASU eliminates the current framework of recognizing probable incurred losses and instead requires an entity to use its current estimate of all expected credit losses over the contractual life. The measurement of expected credit losses is based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the financial assets.

For purchased financial assets with a more-than-insignificant amount of credit deterioration since origination (“PCD assets”) that are measured at amortized cost, an allowance for expected credit losses is recorded as an adjustment to the cost basis of the asset. Subsequent changes in estimated cash flows would be recorded as an adjustment to the allowance and through the statement of income.

Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down to the security's cost basis.

The amendments in this ASU are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. For most debt securities, the transition approach requires a cumulative-effect adjustment to the statement of financial position as of the beginning of the first reporting period the guidance is effective. For other-than-temporarily impaired debt securities and PCD assets, the guidance will be applied prospectively. While the Company is currently in the process of evaluating the impact of the amended guidance on its consolidated financial statements, it currently expects the ALLL to increase upon adoption given that the allowance will be required to cover the full remaining expected life of the portfolio upon adoption, rather than the incurred loss model under current U.S. GAAP. The extent of this increase is still being evaluated and will depend on economic conditions and the composition of the Company’s loan and lease portfolio at the time of adoption.

In February 2016, the FASB issued ASU 2016-02, Leases. The amendments require lessees to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, and a right-of-use asset, which is an asset that represents the lessee's right to use, or control the use of, a specified asset for the lease term. The guidance also simplifies the accounting for sale and leaseback transactions. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application is permitted upon issuance. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. The Company is currently in the process of accumulating the lease data necessary to apply the amended guidance. The Company is continuing to evaluate the impact of the amended guidance on its consolidated financial statements, but the effects of recognizing most operating leases is not expected to be material. The Company expects to recognize right-of-use assets and lease liabilities for substantially all of its operating lease commitments based on the present value of unpaid lease payments as of the date of adoption.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, to require all equity investments to be measured at fair value with changes in the fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee). The amendments in this ASU also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. This ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. The Company does not expect this guidance to have a material impact on its consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The guidance in this update supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the industry topics of the codification. For public companies, this update was to be effective for interim and annual periods beginning after December 15, 2016. However, in August 2015, the FASB issued ASU 2015-14, which delayed the effective date of ASU 2014-09 by one year and permits companies to voluntarily adopt the new standard as of the original effective date. The Company does not expect this guidance to have a material impact on its consolidated financial statements.

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Loans Receivable (Tables)

9 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Schedule of Loans Receivable

The following table is a summary of loans receivable.

	June 30, 2018				September 30, 2017
	(In thousands)				(In thousands)
Gross loans by category
Single-family residential	$	5,745,598	45.1	%	$	5,711,004	46.8	%
Construction	1,885,034		14.8		1,597,996		13.1
Construction - custom	612,688		4.8		602,631		4.9
Land - acquisition & development	150,936		1.2		124,308		1.0
Land - consumer lot loans	103,118		0.8		104,405		0.9
Multi-family	1,346,534		10.6		1,303,148		10.7
Commercial real estate	1,435,418		11.3		1,434,610		11.8
Commercial & industrial	1,133,075		8.9		1,093,360		9.0
HELOC	136,766		1.1		144,850		1.2
Consumer	188,125		1.5		85,075		0.7
Total gross loans	12,737,292		100	%	12,201,387		100	%
Less:
Allowance for loan losses	128,666				123,073
Loans in process	1,230,132				1,149,934
Net deferred fees, costs and discounts	52,523				45,758
Total loan contra accounts	1,411,321				1,318,765
Net loans	$	11,325,971			$	10,882,622

Summary of Information Regarding Non-Accrual Loans

The following table sets forth information regarding non-accrual loans.

	June 30, 2018					September 30, 2017
	(In thousands, except ratio data)
Non-accrual loans:
Single-family residential	$	26,119		43.1	%	$	27,930		56.3	%
Construction	1,841			3.0		—			—
Construction - custom	—			—		91			0.2
Land - acquisition & development	1,757			2.9		296			0.6
Land - consumer lot loans	642			1.1		605			1.2
Multi-family	—			—		139			0.3
Commercial real estate	9,684			16.0		11,815			23.8
Commercial & industrial	19,876			32.8		8,082			16.3
HELOC	637			1.1		531			1.1
Consumer	28			—		91			0.2
Total non-accrual loans	$	60,584		100	%	$	49,580		100	%
% of total net loans	0.53		%			0.46		%

Analysis of Age of Loans in Past Due Status

The following tables provide details regarding delinquent loans.

June 30, 2018	Loans Receivable		Days Delinquent Based on $ Amount of Loans										% based on $
Type of Loan	Net of Loans In Process		Current		30		60		90		Total Delinquent
	(In thousands, except ratio data)
Single-family residential	$	5,744,620	$	5,714,962	$	7,201	$	4,521	$	17,936	$	29,658	0.52	%
Construction	1,012,239		1,009,782		—		616		1,841		2,457		0.24
Construction - custom	285,858		285,687		171		—		—		171		0.06
Land - acquisition & development	121,508		119,593		—		270		1,645		1,915		1.58
Land - consumer lot loans	103,040		102,303		128		301		308		737		0.72
Multi-family	1,346,512		1,346,512		—		—		—		—		—
Commercial real estate	1,435,417		1,433,030		684		—		1,703		2,387		0.17
Commercial & industrial	1,133,075		1,126,480		—		—		6,595		6,595		0.58
HELOC	136,766		135,406		863		146		351		1,360		0.99
Consumer	188,125		187,773		125		127		100		352		0.19
Total Loans	$	11,507,160	$	11,461,528	$	9,172	$	5,981	$	30,479	$	45,632	0.40	%
Delinquency %			99.60%		0.08%		0.05%		0.26%		0.40%

September 30, 2017	Loans Receivable		Days Delinquent Based on $ Amount of Loans										% based on $
Type of Loan	Net of Loans In Process		Current		30		60		90		Total Delinquent
	(In thousands, except ratio data)
Single-family residential	$	5,709,690	$	5,671,933	$	10,925	$	4,810	$	22,022	$	37,757	0.66	%
Construction	793,959		793,959		—		—		—		—		—
Construction - custom	277,599		277,508		—		—		91		91		0.03
Land - acquisition & development	104,856		104,526		—		—		330		330		0.31
Land - consumer lot loans	104,335		103,389		112		680		154		946		0.91
Multi-family	1,303,119		1,302,720		5		255		139		399		0.03
Commercial real estate	1,434,610		1,432,052		507		—		2,051		2,558		0.18
Commercial & industrial	1,093,360		1,092,735		—		51		574		625		0.06
HELOC	144,850		143,974		221		342		313		876		0.60
Consumer	85,075		84,644		245		107		79		431		0.51
Total Loans	$	11,051,453	$	11,007,440	$	12,015	$	6,245	$	25,753	$	44,013	0.40	%
Delinquency %			99.60%		0.11%		0.06%		0.23%		0.40%

Schedule of Impaired Loans, Loan Commitments and Loans Serviced

The following table provides information related to loans restructured in a troubled debt restructuring ("TDR") during the periods presented:

	Three Months Ended June 30,
	2018					2017
		Pre-Modification		Post-Modification			Pre-Modification		Post-Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number of	Recorded		Recorded		Number of	Recorded		Recorded
	Contracts	Investment		Investment		Contracts	Investment		Investment
		($ in thousands)					($ in thousands)
Troubled Debt Restructurings:
Single-family residential	5	$	714	$	714	11	$	1,836	$	1,836
HELOC	1	75		75		—	—		—
	6	$	789	$	789	11	$	1,836	$	1,836

	Nine Months Ended June 30,
	2018					2017
		Pre-Modification		Post-Modification			Pre-Modification		Post-Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number of	Recorded		Recorded		Number of	Recorded		Recorded
	Contracts	Investment		Investment		Contracts	Investment		Investment
		($ in thousands)					($ in thousands)
Troubled Debt Restructurings:
Single-family residential	25	$	4,909	$	4,909	31	$	5,682	$	5,682
Land - consumer lot loans	—	—		—		1	204		204
Commercial & Industrial	3	7,256		7,256		—	—		—
HELOC	1	75		75		1	228		228
	29	$	12,240	$	12,240	33	$	6,114	$	6,114

Schedule of Loan Modifications

The following table provides information on payment defaults occurring during the periods presented where the loan had been modified in a TDR within 12 months of the payment default.

	Three Months Ended June 30,
	2018			2017
	Number of	Recorded		Number of	Recorded
	Contracts	Investment		Contracts	Investment
	($ in thousands)			($ in thousands)
Trouble Debt Restructurings That Subsequently Defaulted:
Single-family residential	—	$	—	3	$	401
	—	$	—	3	$	401

	Nine Months Ended June 30,
	2018			2017
	Number of	Recorded		Number of	Recorded
	Contracts	Investment		Contracts	Investment
	($ in thousands)			($ in thousands)
Troubled Debt Restructurings That Subsequently Defaulted:
Single-family residential	2	$	206	16	$	3,586
Commercial real estate	—	—		2	267
	2	$	206	18	$	3,853

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Allowance for Losses on Loans (Tables)

9 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Summary of Activity in Allowance for Loan Losses

The following tables summarize the activity in the allowance for loan losses.

Three Months Ended June 30, 2018	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	34,144	$	(299	)	$	283	$	273		$	34,401
Construction	27,389		—			—		2,744			30,133
Construction - custom	2,081		—			—		(67		)	2,014
Land - acquisition & development	7,622		(12		)	2,699		(2,609		)	7,700
Land - consumer lot loans	2,853		(1		)	35		20			2,907
Multi-family	7,982		—			—		109			8,091
Commercial real estate	11,588		—			91		(100		)	11,579
Commercial & industrial	29,330		(3,317		)	433		1,069			27,515
HELOC	802		—			—		9			811
Consumer	3,785		(45		)	223		(448		)	3,515
	$	127,576	$	(3,674	)	$	3,764	$	1,000		$	128,666

Three Months Ended June 30, 2017	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	37,164	$	(267	)	$	81	$	1,133		$	38,111
Construction	25,061		—			—		(3,195		)	21,866
Construction - custom	1,176		—			—		714			1,890
Land - acquisition & development	6,669		—			863		(315		)	7,217
Land - consumer lot loans	2,513		—			118		(83		)	2,548
Multi-family	7,929		—			—		(17		)	7,912
Commercial real estate	10,772		—			164		411			11,347
Commercial & industrial	28,365		—			154		653			29,172
HELOC	826		—			1		50			877
Consumer	1,447		(144		)	282		(296		)	1,289
	$	121,922	$	(411	)	$	1,663	$	(945	)	$	122,229

Nine Months Ended June 30, 2018	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	36,892	$	(1,049	)	$	615	$	(2,057	)	$	34,401
Construction	24,556		—			—		5,577			30,133
Construction - custom	1,944		(50		)	—		120			2,014
Land - acquisition & development	6,829		(12		)	7,278		(6,395		)	7,700
Land - consumer lot loans	2,649		(67		)	35		290			2,907
Multi-family	7,862		—			—		229			8,091
Commercial real estate	11,818		(36		)	92		(295		)	11,579
Commercial & industrial	28,524		(3,433		)	603		1,821			27,515
HELOC	855		(1		)	—		(43		)	811
Consumer	1,144		(217		)	785		1,803			3,515
	$	123,073	$	(4,865	)	$	9,408	$	1,050		$	128,666

Nine Months Ended June 30, 2017	Beginning Allowance		Charge-offs			Recoveries		Provision & Transfers			Ending Allowance
	(In thousands)
Single-family residential	$	37,796	$	(763	)	$	455	$	623		$	38,111
Construction	19,838		—			—		2,028			21,866
Construction - custom	1,080		(3		)	—		813			1,890
Land - acquisition & development	6,023		(63		)	9,092		(7,835		)	7,217
Land - consumer lot loans	2,535		(17		)	368		(338		)	2,548
Multi-family	6,925		—			—		987			7,912
Commercial real estate	8,588		(11		)	1,684		1,086			11,347
Commercial & industrial	28,008		(163		)	1,096		231			29,172
HELOC	813		(90		)	2		152			877
Consumer	1,888		(798		)	975		(776		)	1,289
	$	113,494	$	(1,908	)	$	13,672	$	(3,029	)	$	122,229

Summary of Loans Collectively and Individually Evaluated for Impairment and Related Allocation of Reserves

The following tables show loans collectively and individually evaluated for impairment and the related allocation of general and specific reserves.

June 30, 2018	Loans Collectively Evaluated for Impairment						Loans Individually Evaluated for Impairment
	Allowance Allocation		Recorded Investment of Loans		Ratio		Allowance Allocation		Recorded Investment of Loans		Ratio
	(In thousands, except ratio data)						(In thousands, except ratio data)
Single-family residential	$	34,401	$	5,726,737	0.6	%	$	—	$	24,139	—	%
Construction	30,133		1,007,676		3.0		—		4,563		—
Construction - custom	2,014		285,858		0.7		—		—		—
Land - acquisition & development	7,700		118,323		6.5		—		3,184		—
Land - consumer lot loans	2,907		97,310		3.0		—		833		—
Multi-family	8,086		1,343,468		0.6		5		3,045		0.2
Commercial real estate	11,502		1,388,029		0.8		77		31,805		0.2
Commercial & industrial	27,515		1,087,664		2.5		—		45,400		—
HELOC	811		134,522		0.6		—		562		—
Consumer	3,515		188,004		1.9		—		26		—
	$	128,584	$	11,377,591	1.1	%	$	82	$	113,557	0.1	%

September 30, 2017	Loans Collectively Evaluated for Impairment						Loans Individually Evaluated for Impairment
	Allowance Allocation		Recorded Investment of Loans		Ratio		Allowance Allocation		Recorded Investment of Loans		Ratio
	(In thousands, except ratio data)						(In thousands, except ratio data)
Single-family residential	$	36,892	$	5,713,576	0.7	%	$	—	$	5,552	—	%
Construction	24,556		793,958		3.1		—		—		—
Construction - custom	1,944		277,495		0.7		—		105		—
Land - acquisition & development	6,828		104,767		6.5		1		89		1.0
Land - consumer lot loans	2,649		96,337		2.8		—		171		—
Multi-family	7,857		1,302,625		0.6		5		493		1.0
Commercial real estate	11,698		1,391,668		0.8		120		21,765		0.6
Commercial & industrial	28,524		1,093,210		2.6		—		81		—
HELOC	855		141,689		0.6		—		215		—
Consumer	1,144		84,887		1.4		—		82		—
	$	122,947	$	11,000,212	1.1	%	$	126	$	28,553	0.4	%

Summary of Loans Based on Credit Quality Indicators

The following tables provide information on loans based on risk rating categories as defined above.

June 30, 2018	Internally Assigned Grade
	Pass			Special mention			Substandard			Doubtful			Loss			Total Gross Loans
	(In thousands, except ratio data)
Loan type
Single-family residential	$	5,713,075		$	—		$	32,523		$	—		$	—		$	5,745,598
Construction	1,880,415			55			4,564			—			—			1,885,034
Construction - custom	612,688			—			—			—			—			612,688
Land - acquisition & development	147,864			—			3,072			—			—			150,936
Land - consumer lot loans	102,476			—			642			—			—			103,118
Multi-family	1,343,950			—			2,584			—			—			1,346,534
Commercial real estate	1,402,581			4,900			27,937			—			—			1,435,418
Commercial & industrial	1,084,175			9,582			39,318			—			—			1,133,075
HELOC	136,122			—			644			—			—			136,766
Consumer	188,093			—			32			—			—			188,125
Total gross loans	$	12,611,439		$	14,537		$	111,316		$	—		$	—		$	12,737,292
Total grade as a % of total gross loans	99.0		%	0.1		%	0.9		%	—		%	—		%

September 30, 2017	Internally Assigned Grade
	Pass			Special mention			Substandard			Doubtful			Loss			Total Gross Loans
	(In thousands, except ratio data)
Loan type
Single-family residential	$	5,671,229		$	—		$	39,775		$	—		$	—		$	5,711,004
Construction	1,594,926			—			3,070			—			—			1,597,996
Construction - custom	602,540			—			91			—			—			602,631
Land - acquisition & development	123,028			207			1,073			—			—			124,308
Land - consumer lot loans	103,787			—			618			—			—			104,405
Multi-family	1,295,261			5,795			2,092			—			—			1,303,148
Commercial real estate	1,391,996			5,944			36,670			—			—			1,434,610
Commercial & industrial	1,054,972			14,814			23,574			—			—			1,093,360
HELOC	144,229			—			621			—			—			144,850
Consumer	84,984			—			91			—			—			85,075
Total gross loans	$	12,066,952		$	26,760		$	107,675		$	—		$	—		$	12,201,387
Total grade as a % of total gross loans	98.9		%	0.2		%	0.9		%	—		%	—		%

The following tables provide information on gross loans based on borrower payment activity.

June 30, 2018	Performing Loans				Non-Performing Loans
	Amount		% of Total Gross  Loans		Amount		% of Total Gross  Loans
	(In thousands, except ratio data)
Single-family residential	$	5,719,479	99.5	%	$	26,119	0.5	%
Construction	1,883,193		99.9		1,841		0.1
Construction - custom	612,688		100.0		—		—
Land - acquisition & development	149,179		98.8		1,757		1.2
Land - consumer lot loans	102,476		99.4		642		0.6
Multi-family	1,346,534		100.0		—		—
Commercial real estate	1,425,734		99.3		9,684		0.7
Commercial & industrial	1,113,199		98.2		19,876		1.8
HELOC	136,129		99.5		637		0.5
Consumer	188,097		100.0		28		—
	$	12,676,708	99.5	%	$	60,584	0.5	%

September 30, 2017	Performing Loans				Non-Performing Loans
	Amount		% of Total Gross  Loans		Amount		% of Total Gross  Loans
	(In thousands, except ratio data)
Single-family residential	$	5,683,074	99.5	%	$	27,930	0.5	%
Construction	1,597,996		100.0		—		—
Construction - custom	602,540		99.9		91		0.1
Land - acquisition & development	124,012		99.8		296		0.2
Land - consumer lot loans	103,800		99.4		605		0.6
Multi-family	1,303,009		99.9		139		0.1
Commercial real estate	1,422,795		99.2		11,815		0.8
Commercial & industrial	1,085,278		99.3		8,082		0.7
HELOC	144,319		99.6		531		0.4
Consumer	84,984		99.9		91		0.1
	$	12,151,807	99.6	%	$	49,580	0.4	%

Summary of Impaired Loans Based on Type

The following tables provide information on impaired loan balances and the related allowances by loan types.

June 30, 2018	Recorded Investment		Unpaid Principal Balance		Related Allowance			Average Recorded Investment (Year-To-Date)
	(In thousands)
Impaired loans with no related allowance recorded:
Single-family residential	$	22,114	$	23,310	$	—		$	21,944
Construction	4,843		4,933		—			2,928
Construction - custom	—		—		—			37
Land - acquisition & development	3,073		3,120		—			1,741
Land - consumer lot loans	455		490		—			337
Multi-family	2,606		2,606		—			1,403
Commercial real estate	26,818		31,372		—			22,338
Commercial & industrial	35,427		35,736		—			19,507
HELOC	562		655		—			486
Consumer	26		68		—			56
	95,924		102,290		—			70,777
Impaired loans with an allowance recorded:
Single-family residential	153,356		156,644		2,792			167,211
Land - acquisition & development	—		—		—			23
Land - consumer lot loans	5,136		5,502		—			6,832
Multi-family	461		461		5			477
Commercial real estate	7,162		7,975		77			11,492
Commercial & industrial	3,924		6,964		—			4,547
HELOC	1,491		1,575		—			1,500
Consumer	73		73		—			87
	171,603		179,194		2,874		(1)	192,169
Total impaired loans:
Single-family residential	175,470		179,954		2,792			189,155
Construction	4,843		4,933		—			2,928
Construction - custom	—		—		—			37
Land - acquisition & development	3,073		3,120		—			1,764
Land - consumer lot loans	5,591		5,992		—			7,169
Multi-family	3,067		3,067		5			1,880
Commercial real estate	33,980		39,347		77			33,830
Commercial & industrial	39,351		42,700		—			24,054
HELOC	2,053		2,230		—			1,986
Consumer	99		141		—			143
	$	267,527	$	281,484	$	2,874	(1)	$	262,946

(1) Includes $82,000 of specific reserves and $2,792,000 included in the general reserves.

September 30, 2017	Recorded Investment		Unpaid Principal Balance		Related Allowance			Average Recorded Investment (Year-To-Date)
	(In thousands)
Impaired loans with no related allowance recorded:
Single-family residential	$	21,325	$	23,880	$	—		$	19,371
Construction - custom	148		165		—			231
Land - acquisition & development	330		8,208		—			176
Land - consumer lot loans	208		330		—			431
Multi-family	139		3,231		—			748
Commercial real estate	12,890		22,487		—			11,466
Commercial & industrial	8,279		14,321		—			7,425
HELOC	490		1,212		—			487
Consumer	88		1,433		—			57
	43,897		75,267		—			40,392
Impaired loans with an allowance recorded:
Single-family residential	181,941		186,167		4,030			204,723
Land - acquisition & development	90		90		1			576
Land - consumer lot loans	7,949		8,526		—			8,976
Multi-family	493		493		5			1,024
Commercial real estate	15,079		16,707		120			16,991
Commercial & industrial	—		—		—			297
HELOC	1,728		1,806		—			1,451
Consumer	97		284		—			100
	207,377		214,073		4,156		(1)	234,138
Total impaired loans:
Single-family residential	203,266		210,047		4,030			224,094
Construction - custom	148		165		—			231
Land - acquisition & development	420		8,298		1			752
Land - consumer lot loans	8,157		8,856		—			9,407
Multi-family	632		3,724		5			1,772
Commercial real estate	27,969		39,194		120			28,457
Commercial & industrial	8,279		14,321		—			7,722
HELOC	2,218		3,018		—			1,938
Consumer	185		1,717		—			157
	$	251,274	$	289,340	$	4,156	(1)	$	274,530

(1) Includes $126,000 of specific reserves and $4,030,000 included in the general reserves

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Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value of Assets Measured on Recurring Basis

The following tables present the balance of assets and liabilities measured at fair value on a recurring basis.

	June 30, 2018
	Level 1		Level 2		Level 3		Total
	(In thousands)
Financial Assets
Available-for-sale securities:
Equity securities	$	491	$	—	$	—	$	491
U.S. government and agency securities	—		216,009		—		216,009
Municipal bonds	—		22,755		—		22,755
Corporate debt securities	—		184,232		—		184,232
Mortgage-backed securities
Agency pass-through certificates	—		828,449		—		828,449
Commercial MBS	—		3,465		—		3,465
Total available-for-sale securities	491		1,254,910		—		1,255,401
Interest rate contracts	—		10,141		—		10,141
Commercial loan hedges	—		3,005		—		3,005
Borrowings hedges	—		19,193		—		19,193
Total financial assets	$	491	$	1,287,249	$	—	$	1,287,740
Financial Liabilities
Interest rate contracts	$	—	$	10,141	$	—	$	10,141
Total financial liabilities	$	—	$	10,141	$	—	$	10,141

There were no transfers between, into and/or out of Levels 1, 2 or 3 during the nine months endedJune 30, 2018.

	September 30, 2017
	Level 1		Level 2		Level 3		Total
	(In thousands)
Financial Assets
Available-for-sale securities:
Equity securities	$	522	$	—	$	—	$	522
U.S. government and agency securities	—		211,077		—		211,077
Municipal bonds	—		26,624		—		26,624
Corporate debt securities	—		185,298		—		185,298
Mortgage-backed securities
Agency pass-through certificates	—		834,297		—		834,297
Commercial MBS	—		8,391		—		8,391
Total available-for-sale securities	522		1,265,687		—		1,266,209
Interest rate contracts	—		1,139		—		1,139
Total financial assets	$	522	$	1,266,826	$	—	$	1,267,348
Financial Liabilities
Interest rate contracts	$	—	$	1,139	$	—	$	1,139
Commercial loan hedges	—		174		—		174
Borrowings hedges	—		1,693		—		1,693
Total financial liabilities	$	—	$	3,006	$	—	$	3,006

Aggregated Balance of Assets Measured at Estimated Fair Value on a Nonrecurring Basis and Total Losses Resulting from Those Fair Value Adjustments

The following tables present the aggregated balance of assets that were measured at fair value on a nonrecurring basis at June 30, 2018 and June 30, 2017, and the total gains (losses) resulting from those fair value adjustments for the three and nine months endedJune 30, 2018 and June 30, 2017. The estimated fair value measurements are shown gross of estimated selling costs.

	June 30, 2018								Three Months Ended June 30, 2018			Nine Months Ended June 30, 2018
	Level 1		Level  2		Level  3		Total		Total Gains (Losses)
	(In thousands)								(In thousands)
Impaired loans (1)	$	—	$	—	$	15,125	$	15,125	$	(3,120	)	$	(4,094	)
Real estate owned (2)	—		—		6,354		6,354		(97		)	(656		)
Balance at end of period	$	—	$	—	$	21,479	$	21,479	$	(3,217	)	$	(4,750	)

(1) The gains (losses) represent remeasurements of collateral-dependent loans.

(2) The gains (losses) represent aggregate writedowns and charge-offs on REO.

	June 30, 2017								Three Months Ended June 30, 2017			Nine Months Ended June 30, 2017
	Level 1		Level  2		Level  3		Total		Total Gains (Losses)
	(In thousands)								(In thousands)
Impaired loans (1)	$	—	$	—	$	7,807	$	7,807	$	(305	)	$	(1,666	)
Real estate owned (2)	—		—		9,777		9,777		(467		)	(1,087		)
Balance at end of period	$	—	$	—	$	17,584	$	17,584	$	(772	)	$	(2,753	)

(1) The gains (losses) represent remeasurements of collateral-dependent loans.

(2) The gains (losses) represent aggregate writedowns and charge-offs on REO.

Fair Value of Financial Instruments by Balance Sheet Grouping

Although management is not aware of any factors that would materially affect the estimated fair value amounts presented below, such amounts have not been comprehensively revalued for purposes of these financial statements since the dates shown, and therefore, estimates of fair value subsequent to those dates may differ significantly from the amounts presented below.

		June 30, 2018				September 30, 2017
	Level in Fair Value Hierarchy	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
		($ in thousands)
Financial assets
Cash and cash equivalents	1	$	345,919	$	345,919	$	313,070	$	313,070
Available-for-sale securities
Equity securities	1	491		491		522		522
U.S. government and agency securities	2	216,009		216,009		211,077		211,077
Municipal bonds	2	22,755		22,755		26,624		26,624
Corporate debt securities	2	184,232		184,232		185,298		185,298
Mortgage-backed securities
Agency pass-through certificates	2	828,449		828,449		834,297		834,297
Commercial MBS	2	3,465		3,465		8,391		8,391
Total available-for-sale securities		1,255,401		1,255,401		1,266,209		1,266,209
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	2	1,655,450		1,595,034		1,646,856		1,635,913
Commercial MBS	2	15,000		15,000		—		—
Total held-to-maturity securities		1,670,450		1,610,034		1,646,856		1,635,913
Loans receivable	3	11,325,971		11,492,022		10,882,622		11,247,586
FDIC indemnification asset	3	—		—		8,968		8,564
FHLB and FRB stock	2	128,790		128,790		122,990		122,990
Other assets - interest rate contracts	2	10,141		10,141		1,139		1,139
Other assets - commercial loan hedges	2	3,005		3,005		—		—
Other assets - borrowings hedges	2	19,193		19,193		—		—
Financial liabilities
Customer accounts	2	11,287,473		10,924,562		10,835,008		10,411,686
FHLB advances	2	2,370,000		2,365,478		2,225,000		2,266,791
Other liabilities - interest rate contracts	2	10,141		10,141		1,139		1,139
Other liabilities - commercial loan hedges	2	—		—		174		174
Other liabilities - borrowings hedges	2	—		—		1,693		1,693

The following table presents the fair value and balance sheet classification of derivatives at June 30, 2018 and September 30, 2017:

	Asset Derivatives						Liability Derivatives
	June 30, 2018			September 30, 2017			June 30, 2018			September 30, 2017
	Balance Sheet			Balance Sheet			Balance Sheet			Balance Sheet
	Location	Fair Value		Location	Fair Value		Location	Fair Value		Location	Fair Value
	(In thousands)
Interest rate contracts	Other assets	$	10,141	Other assets	$	1,139	Other liabilities	$	10,141	Other liabilities	$	1,139
Commercial loan hedges	Other assets	3,005		Other assets	—		Other liabilities	—		Other liabilities	174
Borrowings hedges	Other assets	19,193		Other assets	—		Other liabilities	—		Other liabilities	1,693
		$	32,339		$	1,139		$	10,141		$	3,006

Reconciliation of Amortized Cost to Fair Value of Available-for-Sale and Held-to-Maturity Securities

The following tables provide a reconciliation of amortized cost to fair value of available-for-sale and held-to-maturity securities.

	June 30, 2018
	Amortized Cost		Gross Unrealized					Fair Value		Yield
			Gains		Losses
	($ in thousands)
Available-for-sale securities
U.S. government and agency securities due
5 to 10 years	$	63,986	$	—	$	(1,678	)	$	62,308	2.41	%
Over 10 years	153,928		122		(349		)	153,701		2.71
Equity securities due
1 to 5 years	500		—		(9		)	491		1.80
Corporate debt securities due
1 to 5 years	113,727		1,687		(273		)	115,141		3.60
5 to 10 years	69,964		—		(873		)	69,091		3.23
Municipal bonds due
1 to 5 years	1,390		—		(10		)	1,380		2.05
Over 10 years	20,328		1,047		—			21,375		6.45
Mortgage-backed securities
Agency pass-through certificates	836,777		1,563		(9,891		)	828,449		3.34
Commercial MBS	3,460		5		—			3,465		4.27
	1,264,060		4,424		(13,083		)	1,255,401		3.28
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	1,655,450		635		(61,051		)	1,595,034		3.16
Commercial MBS	15,000		—		—			15,000		2.94
	1,670,450		635		(61,051		)	1,610,034		3.16
	$	2,934,510	$	5,059	$	(74,134	)	$	2,865,435	3.21	%

	September 30, 2017
	Amortized Cost		Gross Unrealized						Fair Value		Yield
			Gains		Losses
	($ in thousands)
Available-for-sale securities
U.S. government and agency securities due
Within 1 year	$	9,300	$	146		$	—		$	9,446	10.38	%
1 to 5 years	5,688		2			—			5,690		1.51
5 to 10 years	69,108		—			(1,238		)	67,870		1.93
Over 10 years	127,936		353			(218		)	128,071		1.92
Equity securities
1 to 5 years	500		22			—			522		1.80
Corporate bonds due
1 to 5 years	63,622		2,083			—			65,705		2.96
5 to 10 years	119,960		210			(577		)	119,593		2.62
Municipal bonds due
Within 1 year	2,344		10			—			2,354		1.23
1 to 5 years	1,367		55			—			1,422		2.05
Over 10 years	20,343		2,505			—			22,848		6.45
Mortgage-backed securities
Agency pass-through certificates	828,069		8,402			(2,174		)	834,297		2.96
Commercial MBS	8,350		41			—			8,391		3.31
	1,256,587		13,829			(4,207		)	1,266,209		2.86
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	1,646,856		7,143			(18,086		)	1,635,913		3.14
	1,646,856		7,143			(18,086		)	1,635,913		3.14
	$	2,903,443	$	20,972		$	(22,293	)	$	2,902,122	3.02	%

Schedule of Unrealized Losses and Fair Value of Securities

The following tables show the unrealized gross losses and fair value of securities as of June 30, 2018 and September 30, 2017, by length of time that individual securities in each category have been in a continuous loss position. The decline in fair value since purchase is attributable to changes in interest rates. Because the Company does not intend to sell these securities and does not consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other than temporarily impaired.

June 30, 2018	Less than 12 months					12 months or more					Total
	Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value
	(In thousands)
Corporate debt securities	$	—		$	—	$	(1,146	)	$	118,818	$	(1,146	)	118,818
Municipal bonds	(10		)	1,380		—			—		(10		)	1,380
U.S. government and agency securities	(64		)	43,310		(1,963		)	120,006		(2,027		)	163,316
Equity securities	(9		)	491		—			—		(9		)	491
Agency pass-through certificates	(13,696		)	706,627		(57,246		)	1,401,192		(70,942		)	2,107,819
	$	(13,779	)	$	751,808	$	(60,355	)	$	1,640,016	$	(74,134	)	$	2,391,824

September 30, 2017	Less than 12 months					12 months or more					Total
	Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value		Unrealized Gross Losses			Fair Value
	(In thousands)
Corporate debt securities	$	—		$	—	$	(577	)	$	49,423	$	(577	)	$	49,423
U.S. government and agency securities	(759		)	24,400		(697		)	96,195		(1,456		)	120,595
Agency pass-through certificates	(17,683		)	1,163,358		(2,577		)	249,304		(20,260		)	1,412,662
	$	(18,442	)	$	1,187,758	$	(3,851	)	$	394,922	$	(22,293	)	$	1,582,680

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Derivatives and Hedging Activities (Tables)

9 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Value and Balance Sheet Classification

Although management is not aware of any factors that would materially affect the estimated fair value amounts presented below, such amounts have not been comprehensively revalued for purposes of these financial statements since the dates shown, and therefore, estimates of fair value subsequent to those dates may differ significantly from the amounts presented below.

		June 30, 2018				September 30, 2017
	Level in Fair Value Hierarchy	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
		($ in thousands)
Financial assets
Cash and cash equivalents	1	$	345,919	$	345,919	$	313,070	$	313,070
Available-for-sale securities
Equity securities	1	491		491		522		522
U.S. government and agency securities	2	216,009		216,009		211,077		211,077
Municipal bonds	2	22,755		22,755		26,624		26,624
Corporate debt securities	2	184,232		184,232		185,298		185,298
Mortgage-backed securities
Agency pass-through certificates	2	828,449		828,449		834,297		834,297
Commercial MBS	2	3,465		3,465		8,391		8,391
Total available-for-sale securities		1,255,401		1,255,401		1,266,209		1,266,209
Held-to-maturity securities
Mortgage-backed securities
Agency pass-through certificates	2	1,655,450		1,595,034		1,646,856		1,635,913
Commercial MBS	2	15,000		15,000		—		—
Total held-to-maturity securities		1,670,450		1,610,034		1,646,856		1,635,913
Loans receivable	3	11,325,971		11,492,022		10,882,622		11,247,586
FDIC indemnification asset	3	—		—		8,968		8,564
FHLB and FRB stock	2	128,790		128,790		122,990		122,990
Other assets - interest rate contracts	2	10,141		10,141		1,139		1,139
Other assets - commercial loan hedges	2	3,005		3,005		—		—
Other assets - borrowings hedges	2	19,193		19,193		—		—
Financial liabilities
Customer accounts	2	11,287,473		10,924,562		10,835,008		10,411,686
FHLB advances	2	2,370,000		2,365,478		2,225,000		2,266,791
Other liabilities - interest rate contracts	2	10,141		10,141		1,139		1,139
Other liabilities - commercial loan hedges	2	—		—		174		174
Other liabilities - borrowings hedges	2	—		—		1,693		1,693

The following table presents the fair value and balance sheet classification of derivatives at June 30, 2018 and September 30, 2017:

	Asset Derivatives						Liability Derivatives
	June 30, 2018			September 30, 2017			June 30, 2018			September 30, 2017
	Balance Sheet			Balance Sheet			Balance Sheet			Balance Sheet
	Location	Fair Value		Location	Fair Value		Location	Fair Value		Location	Fair Value
	(In thousands)
Interest rate contracts	Other assets	$	10,141	Other assets	$	1,139	Other liabilities	$	10,141	Other liabilities	$	1,139
Commercial loan hedges	Other assets	3,005		Other assets	—		Other liabilities	—		Other liabilities	174
Borrowings hedges	Other assets	19,193		Other assets	—		Other liabilities	—		Other liabilities	1,693
		$	32,339		$	1,139		$	10,141		$	3,006

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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Goodwill	$ 301,368	$ 293,153
Other assets	(184,330)	(185,826)
Loans in process	1,230,132	1,149,934
Loans and Leases Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans in process	2,161,343	$ 1,992,905
Restatement Adjustment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Goodwill	7,135
Finite-lived intangible assets	5,106
Other assets	$ 12,241

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Dividends and Share Repurchases (Details) - $ / shares			3 Months Ended		9 Months Ended
	Jul. 23, 2018	May 25, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Dividends Payable [Line Items]
Cash dividends per share (in dollars per share)		$ 0.17	$ 0.17	$ 0.15	$ 0.49	$ 0.69
Stock repurchased (in shares)			1,224,384
Average cost per share (in dollars per share)			$ 32.64
Warrants outstanding (in shares)			107,617		107,617
Remaining shares authorized to be repurchased (in shares)			2,855,765		2,855,765
2008 Troubled Asset Relief Program
Dividends Payable [Line Items]
Stock issued during period (in shares)			2,329
Subsequent Event
Dividends Payable [Line Items]
Dividends declared (in dollars per share)	$ 0.18

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Loans Receivable - Schedule of Accounts, Notes, Loans, and Financing Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 12,737,292		$ 12,201,387
Ratio of type of loan to total loans receivable	100.00%		100.00%
Allowance for loan losses	$ 128,666	$ 127,576	$ 123,073	$ 122,229	$ 121,922	$ 113,494
Loans in process	1,230,132		1,149,934
Net deferred fees, costs and discounts	52,523		45,758
Total loan contra accounts	1,411,321		1,318,765
Net loans	11,325,971		10,882,622
Single-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 5,745,598		$ 5,711,004
Ratio of type of loan to total loans receivable	45.10%		46.80%
Allowance for loan losses	$ 34,401	34,144	$ 36,892	38,111	37,164	37,796
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 1,885,034		$ 1,597,996
Ratio of type of loan to total loans receivable	14.80%		13.10%
Allowance for loan losses	$ 30,133	27,389	$ 24,556	21,866	25,061	19,838
Construction - custom
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 612,688		$ 602,631
Ratio of type of loan to total loans receivable	4.80%		4.90%
Allowance for loan losses	$ 2,014	2,081	$ 1,944	1,890	1,176	1,080
Land - acquisition & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 150,936		$ 124,308
Ratio of type of loan to total loans receivable	1.20%		1.00%
Allowance for loan losses	$ 7,700	7,622	$ 6,829	7,217	6,669	6,023
Land - consumer lot loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 103,118		$ 104,405
Ratio of type of loan to total loans receivable	0.80%		0.90%
Allowance for loan losses	$ 2,907	2,853	$ 2,649	2,548	2,513	2,535
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 1,346,534		$ 1,303,148
Ratio of type of loan to total loans receivable	10.60%		10.70%
Allowance for loan losses	$ 8,091	7,982	$ 7,862	7,912	7,929	6,925
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 1,435,418		$ 1,434,610
Ratio of type of loan to total loans receivable	11.30%		11.80%
Allowance for loan losses	$ 11,579	11,588	$ 11,818	11,347	10,772	8,588
Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 1,133,075		$ 1,093,360
Ratio of type of loan to total loans receivable	8.90%		9.00%
Allowance for loan losses	$ 27,515	29,330	$ 28,524	29,172	28,365	28,008
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 136,766		$ 144,850
Ratio of type of loan to total loans receivable	1.10%		1.20%
Allowance for loan losses	$ 811	802	$ 855	877	826	813
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 188,125		$ 85,075
Ratio of type of loan to total loans receivable	1.50%		0.70%
Allowance for loan losses	$ 3,515	$ 3,785	$ 1,144	$ 1,289	$ 1,447	$ 1,888

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Loans Receivable - Loans on Non-accrual Status (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual percent of total loans	0.53%	0.46%
Non-accrual loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 60,584	$ 49,580
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	100.00%	100.00%
Non-accrual loans | Single-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 26,119	$ 27,930
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	43.10%	56.30%
Non-accrual loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 1,841	$ 0
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	3.00%	0.00%
Non-accrual loans | Construction - custom
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 0	$ 91
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	0.00%	0.20%
Non-accrual loans | Land - acquisition & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 1,757	$ 296
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	2.90%	0.60%
Non-accrual loans | Land - consumer lot loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 642	$ 605
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	1.10%	1.20%
Non-accrual loans | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 0	$ 139
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	0.00%	0.30%
Non-accrual loans | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 9,684	$ 11,815
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	16.00%	23.80%
Non-accrual loans | Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 19,876	$ 8,082
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	32.80%	16.30%
Non-accrual loans | HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 637	$ 531
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	1.10%	1.10%
Non-accrual loans | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 28	$ 91
Ratio of non-accrual loan by portfolio segment to total loans on non-accrual status	0.00%	0.20%

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Loans Receivable - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual interest income recognized				$ 3,926
Impaired, interest lost on nonaccrual loans				$ 1,741
Ratio of past due loans to total loans, net of charge-offs and LIPs		0.40%		0.40%		0.40%
Percent of TDRs classified as performing				96.70%
Troubled debt restructuring, amount		$ 789	$ 1,836	$ 12,240	$ 6,114
Basis point reduction, minimum				1.00%
Basis point reduction, maximum				2.00%
Single family residential loans as percentage of restructured loans		89.40%		89.40%
Payments to settle FDIC clawback liability	$ 39,900
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term for payment and rate reduction				6 months
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term for payment and rate reduction				24 months
Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructuring, amount				$ 171,603

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Loans Receivable - Loans Receivable, Analysis of Age of Loans in Past Due Status (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	$ 11,507,160	$ 11,051,453
Current	11,461,528	11,007,440
Total Delinquent	$ 45,632	$ 44,013
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.40%	0.40%
Ratio of total past due loans to total loans receivable, current	99.60%	99.60%
Ratio of total past due loans to total loans receivable, past due	0.40%	0.40%
30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 9,172	$ 12,015
Ratio of total past due loans to total loans receivable, past due	0.08%	0.11%
60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 5,981	$ 6,245
Ratio of total past due loans to total loans receivable, past due	0.05%	0.06%
90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 30,479	$ 25,753
Ratio of total past due loans to total loans receivable, past due	0.26%	0.23%
Single-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	$ 5,744,620	$ 5,709,690
Current	5,714,962	5,671,933
Total Delinquent	$ 29,658	$ 37,757
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.52%	0.66%
Single-family residential | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 7,201	$ 10,925
Single-family residential | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	4,521	4,810
Single-family residential | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	17,936	22,022
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	1,012,239	793,959
Current	1,009,782	793,959
Total Delinquent	$ 2,457	$ 0
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.24%	0.00%
Construction | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 0	$ 0
Construction | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	616	0
Construction | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	1,841	0
Construction - custom
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	285,858	277,599
Current	285,687	277,508
Total Delinquent	$ 171	$ 91
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.06%	0.03%
Construction - custom | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 171	$ 0
Construction - custom | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	0	0
Construction - custom | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	0	91
Land - acquisition & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	121,508	104,856
Current	119,593	104,526
Total Delinquent	$ 1,915	$ 330
Ratio of past due loans to total loans, net of charge-offs and LIPs	1.58%	0.31%
Land - acquisition & development | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 0	$ 0
Land - acquisition & development | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	270	0
Land - acquisition & development | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	1,645	330
Land - consumer lot loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	103,040	104,335
Current	102,303	103,389
Total Delinquent	$ 737	$ 946
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.72%	0.91%
Land - consumer lot loans | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 128	$ 112
Land - consumer lot loans | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	301	680
Land - consumer lot loans | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	308	154
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	1,346,512	1,303,119
Current	1,346,512	1,302,720
Total Delinquent	$ 0	$ 399
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.00%	0.03%
Multi-family | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 0	$ 5
Multi-family | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	0	255
Multi-family | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	0	139
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	1,435,417	1,434,610
Current	1,433,030	1,432,052
Total Delinquent	$ 2,387	$ 2,558
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.17%	0.18%
Commercial real estate | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 684	$ 507
Commercial real estate | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	0	0
Commercial real estate | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	1,703	2,051
Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	1,133,075	1,093,360
Current	1,126,480	1,092,735
Total Delinquent	$ 6,595	$ 625
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.58%	0.06%
Commercial & industrial | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 0	$ 0
Commercial & industrial | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	0	51
Commercial & industrial | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	6,595	574
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	136,766	144,850
Current	135,406	143,974
Total Delinquent	$ 1,360	$ 876
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.99%	0.60%
HELOC | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 863	$ 221
HELOC | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	146	342
HELOC | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	351	313
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Net of Loans In Process	188,125	85,075
Current	187,773	84,644
Total Delinquent	$ 352	$ 431
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.19%	0.51%
Consumer | 30 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 125	$ 245
Consumer | 60 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	127	107
Consumer | 90 Days Delinquent
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Delinquent	$ 100	$ 79

XML

Loans Receivable - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018 USD ($) contract	Jun. 30, 2017 USD ($) contract	Jun. 30, 2018 USD ($) contract	Jun. 30, 2017 USD ($) contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	6	11	29	33
Pre-Modification Outstanding Recorded Investment	$ 789	$ 1,836	$ 12,240	$ 6,114
Post-Modification Outstanding Recorded Investment	$ 789	$ 1,836	$ 12,240	$ 6,114
Single-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	5	11	25	31
Pre-Modification Outstanding Recorded Investment	$ 714	$ 1,836	$ 4,909	$ 5,682
Post-Modification Outstanding Recorded Investment	$ 714	$ 1,836	$ 4,909	$ 5,682
Land - consumer lot loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract			0	1
Pre-Modification Outstanding Recorded Investment			$ 0	$ 204
Post-Modification Outstanding Recorded Investment			$ 0	$ 204
Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract			3	0
Pre-Modification Outstanding Recorded Investment			$ 7,256	$ 0
Post-Modification Outstanding Recorded Investment			$ 7,256	$ 0
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	1	0	1	1
Pre-Modification Outstanding Recorded Investment	$ 75	$ 0	$ 75	$ 228
Post-Modification Outstanding Recorded Investment	$ 75	$ 0	$ 75	$ 228

XML

Loans Receivable - Loan Modifications (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018 USD ($) contract	Jun. 30, 2017 USD ($) contract	Jun. 30, 2018 USD ($) contract	Jun. 30, 2017 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	3	2	18
Recorded Investment | $	$ 0	$ 401	$ 206	$ 3,853
Single-family residential
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	0	3	2	16
Recorded Investment | $	$ 0	$ 401	$ 206	$ 3,586
Commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract			0	2
Recorded Investment | $			$ 0	$ 267

XML

Allowance for Losses on Loans - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	$ 127,576	$ 121,922	$ 123,073	$ 113,494
Charge-offs	(3,674)	(411)	(4,865)	(1,908)
Recoveries	3,764	1,663	9,408	13,672
Provision & Transfers	1,000	(945)	1,050	(3,029)
Ending Allowance	128,666	122,229	128,666	122,229
Single-family residential
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	34,144	37,164	36,892	37,796
Charge-offs	(299)	(267)	(1,049)	(763)
Recoveries	283	81	615	455
Provision & Transfers	273	1,133	(2,057)	623
Ending Allowance	34,401	38,111	34,401	38,111
Construction
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	27,389	25,061	24,556	19,838
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision & Transfers	2,744	(3,195)	5,577	2,028
Ending Allowance	30,133	21,866	30,133	21,866
Construction - custom
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	2,081	1,176	1,944	1,080
Charge-offs	0	0	(50)	(3)
Recoveries	0	0	0	0
Provision & Transfers	(67)	714	120	813
Ending Allowance	2,014	1,890	2,014	1,890
Land - acquisition & development
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	7,622	6,669	6,829	6,023
Charge-offs	(12)	0	(12)	(63)
Recoveries	2,699	863	7,278	9,092
Provision & Transfers	(2,609)	(315)	(6,395)	(7,835)
Ending Allowance	7,700	7,217	7,700	7,217
Land - consumer lot loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	2,853	2,513	2,649	2,535
Charge-offs	(1)	0	(67)	(17)
Recoveries	35	118	35	368
Provision & Transfers	20	(83)	290	(338)
Ending Allowance	2,907	2,548	2,907	2,548
Multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	7,982	7,929	7,862	6,925
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision & Transfers	109	(17)	229	987
Ending Allowance	8,091	7,912	8,091	7,912
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	11,588	10,772	11,818	8,588
Charge-offs	0	0	(36)	(11)
Recoveries	91	164	92	1,684
Provision & Transfers	(100)	411	(295)	1,086
Ending Allowance	11,579	11,347	11,579	11,347
Commercial & industrial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	29,330	28,365	28,524	28,008
Charge-offs	(3,317)	0	(3,433)	(163)
Recoveries	433	154	603	1,096
Provision & Transfers	1,069	653	1,821	231
Ending Allowance	27,515	29,172	27,515	29,172
HELOC
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	802	826	855	813
Charge-offs	0	0	(1)	(90)
Recoveries	0	1	0	2
Provision & Transfers	9	50	(43)	152
Ending Allowance	811	877	811	877
Consumer
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Allowance	3,785	1,447	1,144	1,888
Charge-offs	(45)	(144)	(217)	(798)
Recoveries	223	282	785	975
Provision & Transfers	(448)	(296)	1,803	(776)
Ending Allowance	$ 3,515	$ 1,289	$ 3,515	$ 1,289

XML

Allowance for Losses on Loans - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision (release) for loan losses	$ 1,000,000	$ 0	$ 50,000	$ (1,600,000)
Charge-offs, net of (recoveries)	(90,000)	(1,252,000)	(4,543,000)	(11,764,000)
Loans receivable, gross	$ 12,737,292,000		$ 12,737,292,000			$ 12,201,387,000
Ratio of past due loans to total loans, net of charge-offs and LIPs	0.40%		0.40%			0.40%
Allowance for loan losses	$ 128,666,000	$ 122,229,000	$ 128,666,000	$ 122,229,000	$ 127,576,000	$ 123,073,000	$ 121,922,000	$ 113,494,000
Allowance for credit losses and reserve for unfunded commitments	$ 135,416,000		$ 135,416,000
Allowance for credit losses and reserve for unfunded commitments, percent of gross loans	1.06%		1.06%
Non-accrual loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	$ 60,584,000		$ 60,584,000			49,580,000
Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	11,377,591,000		11,377,591,000			11,000,212,000
Allowance for loan losses	128,584,000		128,584,000			122,947,000
Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	113,557,000		113,557,000			28,553,000
Allowance for loan losses	82,000		82,000			126,000
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	6,750,000		6,750,000			7,750,000
Non-Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 71,859,000		$ 71,859,000			$ 70,238,000
Ratio of non-performing assets to total assets	0.46%		0.46%			0.46%
Non-accrual loans	$ 60,584,000		$ 60,584,000			$ 49,580,000

XML

Allowance for Losses on Loans - Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 128,666	$ 127,576	$ 123,073	$ 122,229	$ 121,922	$ 113,494
Recorded Investment of Loans	12,737,292		12,201,387
Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	128,584		122,947
Recorded Investment of Loans	$ 11,377,591		$ 11,000,212
Ratio	1.10%		1.10%
Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 82		$ 126
Recorded Investment of Loans	$ 113,557		$ 28,553
Ratio	0.10%		0.40%
Single-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 34,401	34,144	$ 36,892	38,111	37,164	37,796
Recorded Investment of Loans	5,745,598		5,711,004
Single-family residential | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	34,401		36,892
Recorded Investment of Loans	$ 5,726,737		$ 5,713,576
Ratio	0.60%		0.70%
Single-family residential | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 0		$ 0
Recorded Investment of Loans	$ 24,139		$ 5,552
Ratio	0.00%		0.00%
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 30,133	27,389	$ 24,556	21,866	25,061	19,838
Recorded Investment of Loans	1,885,034		1,597,996
Construction | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	30,133		24,556
Recorded Investment of Loans	$ 1,007,676		$ 793,958
Ratio	3.00%		3.10%
Construction | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 0		$ 0
Recorded Investment of Loans	$ 4,563		$ 0
Ratio	0.00%		0.00%
Construction - custom
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 2,014	2,081	$ 1,944	1,890	1,176	1,080
Recorded Investment of Loans	612,688		602,631
Construction - custom | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	2,014		1,944
Recorded Investment of Loans	$ 285,858		$ 277,495
Ratio	0.70%		0.70%
Construction - custom | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 0		$ 0
Recorded Investment of Loans	$ 0		$ 105
Ratio	0.00%		0.00%
Land - acquisition & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 7,700	7,622	$ 6,829	7,217	6,669	6,023
Recorded Investment of Loans	150,936		124,308
Land - acquisition & development | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	7,700		6,828
Recorded Investment of Loans	$ 118,323		$ 104,767
Ratio	6.50%		6.50%
Land - acquisition & development | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 0		$ 1
Recorded Investment of Loans	$ 3,184		$ 89
Ratio	0.00%		1.00%
Land - consumer lot loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 2,907	2,853	$ 2,649	2,548	2,513	2,535
Recorded Investment of Loans	103,118		104,405
Land - consumer lot loans | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	2,907		2,649
Recorded Investment of Loans	$ 97,310		$ 96,337
Ratio	3.00%		2.80%
Land - consumer lot loans | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 0		$ 0
Recorded Investment of Loans	$ 833		$ 171
Ratio	0.00%		0.00%
Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 8,091	7,982	$ 7,862	7,912	7,929	6,925
Recorded Investment of Loans	1,346,534		1,303,148
Multi-family | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	8,086		7,857
Recorded Investment of Loans	$ 1,343,468		$ 1,302,625
Ratio	0.60%		0.60%
Multi-family | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 5		$ 5
Recorded Investment of Loans	$ 3,045		$ 493
Ratio	0.20%		1.00%
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 11,579	11,588	$ 11,818	11,347	10,772	8,588
Recorded Investment of Loans	1,435,418		1,434,610
Commercial real estate | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	11,502		11,698
Recorded Investment of Loans	$ 1,388,029		$ 1,391,668
Ratio	0.80%		0.80%
Commercial real estate | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 77		$ 120
Recorded Investment of Loans	$ 31,805		$ 21,765
Ratio	0.20%		0.60%
Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 27,515	29,330	$ 28,524	29,172	28,365	28,008
Recorded Investment of Loans	1,133,075		1,093,360
Commercial & industrial | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	27,515		28,524
Recorded Investment of Loans	$ 1,087,664		$ 1,093,210
Ratio	2.50%		2.60%
Commercial & industrial | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 0		$ 0
Recorded Investment of Loans	$ 45,400		$ 81
Ratio	0.00%		0.00%
HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 811	802	$ 855	877	826	813
Recorded Investment of Loans	136,766		144,850
HELOC | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	811		855
Recorded Investment of Loans	$ 134,522		$ 141,689
Ratio	0.60%		0.60%
HELOC | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 0		$ 0
Recorded Investment of Loans	$ 562		$ 215
Ratio	0.00%		0.00%
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 3,515	$ 3,785	$ 1,144	$ 1,289	$ 1,447	$ 1,888
Recorded Investment of Loans	188,125		85,075
Consumer | Loans Collectively Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	3,515		1,144
Recorded Investment of Loans	$ 188,004		$ 84,887
Ratio	1.90%		1.40%
Consumer | Loans Individually Evaluated for Impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance Allocation	$ 0		$ 0
Recorded Investment of Loans	$ 26		$ 82
Ratio	0.00%		0.00%

XML

Allowance for Losses on Loans - Internally Assigned Grade (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 12,737,292	$ 12,201,387
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 12,611,439	$ 12,066,952
Total grade as a % of total gross loans	99.00%	98.90%
Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 14,537	$ 26,760
Total grade as a % of total gross loans	0.10%	0.20%
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 111,316	$ 107,675
Total grade as a % of total gross loans	0.90%	0.90%
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0
Total grade as a % of total gross loans	0.00%	0.00%
Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0
Total grade as a % of total gross loans	0.00%	0.00%
Single-family residential
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 5,745,598	$ 5,711,004
Single-family residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	5,713,075	5,671,229
Single-family residential | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Single-family residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	32,523	39,775
Single-family residential | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Single-family residential | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Construction
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,885,034	1,597,996
Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,880,415	1,594,926
Construction | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	55	0
Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	4,564	3,070
Construction | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Construction | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Construction - custom
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	612,688	602,631
Construction - custom | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	612,688	602,540
Construction - custom | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Construction - custom | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	91
Construction - custom | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Construction - custom | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Land - acquisition & development
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	150,936	124,308
Land - acquisition & development | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	147,864	123,028
Land - acquisition & development | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	207
Land - acquisition & development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	3,072	1,073
Land - acquisition & development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Land - acquisition & development | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Land - consumer lot loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	103,118	104,405
Land - consumer lot loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	102,476	103,787
Land - consumer lot loans | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Land - consumer lot loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	642	618
Land - consumer lot loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Land - consumer lot loans | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,346,534	1,303,148
Multi-family | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,343,950	1,295,261
Multi-family | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	5,795
Multi-family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	2,584	2,092
Multi-family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Multi-family | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,435,418	1,434,610
Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,402,581	1,391,996
Commercial real estate | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	4,900	5,944
Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	27,937	36,670
Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Commercial real estate | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Commercial & industrial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,133,075	1,093,360
Commercial & industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	1,084,175	1,054,972
Commercial & industrial | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	9,582	14,814
Commercial & industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	39,318	23,574
Commercial & industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Commercial & industrial | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
HELOC
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	136,766	144,850
HELOC | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	136,122	144,229
HELOC | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
HELOC | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	644	621
HELOC | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
HELOC | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	188,125	85,075
Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	188,093	84,984
Consumer | Special mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	32	91
Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	0	0
Consumer | Loss
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, gross	$ 0	$ 0

XML

Allowance for Losses on Loans - Credit Risk Profile Based on Payment Activity (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 12,737,292	$ 12,201,387
Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 12,676,708	$ 12,151,807
Performing Loans, % of Total Gross Loans	99.50%	99.60%
Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 71,859	$ 70,238
Non-Performing Loans, Amount	$ 60,584	$ 49,580
Non-Performing Loans, % of Total Gross Loans	0.50%	0.40%
Single-family residential
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 5,745,598	$ 5,711,004
Single-family residential | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 5,719,479	$ 5,683,074
Performing Loans, % of Total Gross Loans	99.50%	99.50%
Single-family residential | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 26,119	$ 27,930
Non-Performing Loans, % of Total Gross Loans	0.50%	0.50%
Construction
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 1,885,034	$ 1,597,996
Construction | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 1,883,193	$ 1,597,996
Performing Loans, % of Total Gross Loans	99.90%	100.00%
Construction | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 1,841	$ 0
Non-Performing Loans, % of Total Gross Loans	0.10%	0.00%
Construction - custom
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 612,688	$ 602,631
Construction - custom | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 612,688	$ 602,540
Performing Loans, % of Total Gross Loans	100.00%	99.90%
Construction - custom | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 0	$ 91
Non-Performing Loans, % of Total Gross Loans	0.00%	0.10%
Land - acquisition & development
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 150,936	$ 124,308
Land - acquisition & development | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 149,179	$ 124,012
Performing Loans, % of Total Gross Loans	98.80%	99.80%
Land - acquisition & development | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 1,757	$ 296
Non-Performing Loans, % of Total Gross Loans	1.20%	0.20%
Land - consumer lot loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 103,118	$ 104,405
Land - consumer lot loans | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 102,476	$ 103,800
Performing Loans, % of Total Gross Loans	99.40%	99.40%
Land - consumer lot loans | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 642	$ 605
Non-Performing Loans, % of Total Gross Loans	0.60%	0.60%
Multi-family
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 1,346,534	$ 1,303,148
Multi-family | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 1,346,534	$ 1,303,009
Performing Loans, % of Total Gross Loans	100.00%	99.90%
Multi-family | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 0	$ 139
Non-Performing Loans, % of Total Gross Loans	0.00%	0.10%
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 1,435,418	$ 1,434,610
Commercial real estate | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 1,425,734	$ 1,422,795
Performing Loans, % of Total Gross Loans	99.30%	99.20%
Commercial real estate | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 9,684	$ 11,815
Non-Performing Loans, % of Total Gross Loans	0.70%	0.80%
Commercial & industrial
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 1,133,075	$ 1,093,360
Commercial & industrial | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 1,113,199	$ 1,085,278
Performing Loans, % of Total Gross Loans	98.20%	99.30%
Commercial & industrial | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 19,876	$ 8,082
Non-Performing Loans, % of Total Gross Loans	1.80%	0.70%
HELOC
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 136,766	$ 144,850
HELOC | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 136,129	$ 144,319
Performing Loans, % of Total Gross Loans	99.50%	99.60%
HELOC | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 637	$ 531
Non-Performing Loans, % of Total Gross Loans	0.50%	0.40%
Consumer
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 188,125	$ 85,075
Consumer | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Performing Loans, Amount	$ 188,097	$ 84,984
Performing Loans, % of Total Gross Loans	100.00%	99.90%
Consumer | Non-Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Non-Performing Loans, Amount	$ 28	$ 91
Non-Performing Loans, % of Total Gross Loans	0.00%	0.10%

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Allowance for Losses on Loans - Impaired Loans Based on Loan Types (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jun. 30, 2018	Sep. 30, 2017
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 267,527	$ 251,274
Unpaid Principal Balance	281,484	289,340
Related Allowance	2,874	4,156
Average Recorded Investment (Year-To-Date)	262,946	274,530
Amount of related allowance included in specific reserves	82	126
Amount of related allowance included in general reserves	2,792	4,030
Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	95,924	43,897
Unpaid Principal Balance	102,290	75,267
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	70,777	40,392
Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	171,603	207,377
Unpaid Principal Balance	179,194	214,073
Related Allowance	2,874	4,156
Average Recorded Investment (Year-To-Date)	192,169	234,138
Single-family residential
Financing Receivable, Impaired [Line Items]
Recorded Investment	175,470	203,266
Unpaid Principal Balance	179,954	210,047
Related Allowance	2,792	4,030
Average Recorded Investment (Year-To-Date)	189,155	224,094
Single-family residential | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	22,114	21,325
Unpaid Principal Balance	23,310	23,880
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	21,944	19,371
Single-family residential | Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	153,356	181,941
Unpaid Principal Balance	156,644	186,167
Related Allowance	2,792	4,030
Average Recorded Investment (Year-To-Date)	167,211	204,723
Construction
Financing Receivable, Impaired [Line Items]
Recorded Investment	4,843
Unpaid Principal Balance	4,933
Related Allowance	0
Average Recorded Investment (Year-To-Date)	2,928
Construction | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	4,843
Unpaid Principal Balance	4,933
Related Allowance	0
Average Recorded Investment (Year-To-Date)	2,928
Construction - custom
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	148
Unpaid Principal Balance	0	165
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	37	231
Construction - custom | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	148
Unpaid Principal Balance	0	165
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	37	231
Land - acquisition & development
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,073	420
Unpaid Principal Balance	3,120	8,298
Related Allowance	0	1
Average Recorded Investment (Year-To-Date)	1,764	752
Land - acquisition & development | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,073	330
Unpaid Principal Balance	3,120	8,208
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	1,741	176
Land - acquisition & development | Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	90
Unpaid Principal Balance	0	90
Related Allowance	0	1
Average Recorded Investment (Year-To-Date)	23	576
Land - consumer lot loans
Financing Receivable, Impaired [Line Items]
Recorded Investment	5,591	8,157
Unpaid Principal Balance	5,992	8,856
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	7,169	9,407
Land - consumer lot loans | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	455	208
Unpaid Principal Balance	490	330
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	337	431
Land - consumer lot loans | Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	5,136	7,949
Unpaid Principal Balance	5,502	8,526
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	6,832	8,976
Multi-family
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,067	632
Unpaid Principal Balance	3,067	3,724
Related Allowance	5	5
Average Recorded Investment (Year-To-Date)	1,880	1,772
Multi-family | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,606	139
Unpaid Principal Balance	2,606	3,231
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	1,403	748
Multi-family | Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	461	493
Unpaid Principal Balance	461	493
Related Allowance	5	5
Average Recorded Investment (Year-To-Date)	477	1,024
Commercial real estate
Financing Receivable, Impaired [Line Items]
Recorded Investment	33,980	27,969
Unpaid Principal Balance	39,347	39,194
Related Allowance	77	120
Average Recorded Investment (Year-To-Date)	33,830	28,457
Commercial real estate | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	26,818	12,890
Unpaid Principal Balance	31,372	22,487
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	22,338	11,466
Commercial real estate | Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	7,162	15,079
Unpaid Principal Balance	7,975	16,707
Related Allowance	77	120
Average Recorded Investment (Year-To-Date)	11,492	16,991
Commercial & industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment	39,351	8,279
Unpaid Principal Balance	42,700	14,321
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	24,054	7,722
Commercial & industrial | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	35,427	8,279
Unpaid Principal Balance	35,736	14,321
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	19,507	7,425
Commercial & industrial | Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	3,924	0
Unpaid Principal Balance	6,964	0
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	4,547	297
HELOC
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,053	2,218
Unpaid Principal Balance	2,230	3,018
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	1,986	1,938
HELOC | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	562	490
Unpaid Principal Balance	655	1,212
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	486	487
HELOC | Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,491	1,728
Unpaid Principal Balance	1,575	1,806
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	1,500	1,451
Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment	99	185
Unpaid Principal Balance	141	1,717
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	143	157
Consumer | Impaired loans with no related allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	26	88
Unpaid Principal Balance	68	1,433
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	56	57
Consumer | Impaired loans with an allowance recorded
Financing Receivable, Impaired [Line Items]
Recorded Investment	73	97
Unpaid Principal Balance	73	284
Related Allowance	0	0
Average Recorded Investment (Year-To-Date)	$ 87	$ 100

XML

Fair Value Measurements - Recurring and Nonrecurring (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 1,255,401		$ 1,255,401		$ 1,266,209
Total financial assets	2,865,435		2,865,435		2,902,122
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,255,401		1,255,401		1,266,209
Total financial assets	1,287,740		1,287,740		1,267,348
Total financial liabilities	10,141		10,141		3,006
Recurring | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	10,141		10,141		1,139
Derivative liabilities	10,141		10,141		1,139
Recurring | Commercial loan hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	3,005		3,005
Derivative liabilities					174
Recurring | Borrowings hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	19,193		19,193
Derivative liabilities					1,693
Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	491		491		522
Recurring | U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	216,009		216,009		211,077
Recurring | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	22,755		22,755		26,624
Recurring | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	184,232		184,232		185,298
Recurring | Agency pass-through certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	828,449		828,449		834,297
Recurring | Commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	3,465		3,465		8,391
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	491		491		522
Total financial assets	491		491		522
Total financial liabilities	0		0		0
Recurring | Level 1 | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0		0		0
Derivative liabilities	0		0		0
Recurring | Level 1 | Commercial loan hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0		0
Derivative liabilities					0
Recurring | Level 1 | Borrowings hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0		0
Derivative liabilities					0
Recurring | Level 1 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	491		491		522
Recurring | Level 1 | U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 1 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 1 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 1 | Agency pass-through certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 1 | Commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,254,910		1,254,910		1,265,687
Total financial assets	1,287,249		1,287,249		1,266,826
Total financial liabilities	10,141		10,141		3,006
Recurring | Level 2 | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	10,141		10,141		1,139
Derivative liabilities	10,141		10,141		1,139
Recurring | Level 2 | Commercial loan hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	3,005		3,005
Derivative liabilities					174
Recurring | Level 2 | Borrowings hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	19,193		19,193
Derivative liabilities					1,693
Recurring | Level 2 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 2 | U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	216,009		216,009		211,077
Recurring | Level 2 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	22,755		22,755		26,624
Recurring | Level 2 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	184,232		184,232		185,298
Recurring | Level 2 | Agency pass-through certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	828,449		828,449		834,297
Recurring | Level 2 | Commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	3,465		3,465		8,391
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Total financial assets	0		0		0
Total financial liabilities	0		0		0
Recurring | Level 3 | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0		0		0
Derivative liabilities	0		0		0
Recurring | Level 3 | Commercial loan hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0		0
Derivative liabilities					0
Recurring | Level 3 | Borrowings hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0		0
Derivative liabilities					0
Recurring | Level 3 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 3 | U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 3 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 3 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 3 | Agency pass-through certificates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		0
Recurring | Level 3 | Commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0		$ 0
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	21,479	$ 17,584	21,479	$ 17,584
Nonrecurring | Changes measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss related to impaired loans and real estate held for sale, measured on nonrecurring basis	(3,217)	(772)	(4,750)	(2,753)
Nonrecurring | Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	15,125	7,807	15,125	7,807
Nonrecurring | Impaired loans | Changes measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss related to impaired loans and real estate held for sale, measured on nonrecurring basis	(3,120)	(305)	(4,094)	(1,666)
Nonrecurring | Real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	6,354	9,777	6,354	9,777
Nonrecurring | Real estate owned | Changes measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss related to impaired loans and real estate held for sale, measured on nonrecurring basis	(97)	(467)	(656)	(1,087)
Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0	0	0
Nonrecurring | Level 1 | Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0	0	0
Nonrecurring | Level 1 | Real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0	0	0
Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0	0	0
Nonrecurring | Level 2 | Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0	0	0
Nonrecurring | Level 2 | Real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0	0	0
Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	21,479	17,584	21,479	17,584
Nonrecurring | Level 3 | Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	15,125	7,807	15,125	7,807
Nonrecurring | Level 3 | Real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	$ 6,354	$ 9,777	$ 6,354	$ 9,777

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Fair Value Measurements - Fair Value by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	$ 1,255,401	$ 1,266,209
Held-to-maturity securities	1,610,034	1,635,913
FHLB and FRB stock	128,790	122,990
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	1,255,401	1,266,209
Held-to-maturity securities	1,670,450	1,646,856
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	1,255,401	1,266,209
Held-to-maturity securities	1,610,034	1,635,913
Level 1 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	345,919	313,070
Level 1 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	345,919	313,070
Level 2 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
FHLB and FRB stock	128,790	122,990
Customer accounts	11,287,473	10,835,008
FHLB advances	2,370,000	2,225,000
Level 2 | Carrying Amount | Interest rate contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	10,141	1,139
Other liabilities	10,141	1,139
Level 2 | Carrying Amount | Commercial loan hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	3,005	0
Other liabilities	0	174
Level 2 | Carrying Amount | Borrowings hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	19,193	0
Other liabilities	0	1,693
Level 2 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
FHLB and FRB stock	128,790	122,990
Customer accounts	10,924,562	10,411,686
FHLB advances	2,365,478	2,266,791
Level 2 | Estimated Fair Value | Interest rate contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	10,141	1,139
Other liabilities	10,141	1,139
Level 2 | Estimated Fair Value | Commercial loan hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	3,005	0
Other liabilities	0	174
Level 2 | Estimated Fair Value | Borrowings hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	19,193	0
Other liabilities	0	1,693
Level 3 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans receivable	11,325,971	10,882,622
FDIC indemnification asset	0	8,968
Level 3 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans receivable	11,492,022	11,247,586
FDIC indemnification asset	0	8,564
Equity securities | Level 1 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	491	522
Equity securities | Level 1 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	491	522
U.S. government and agency securities | Level 2 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	216,009	211,077
U.S. government and agency securities | Level 2 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	216,009	211,077
Municipal bonds | Level 2 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	22,755	26,624
Municipal bonds | Level 2 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	22,755	26,624
Corporate debt securities | Level 2 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	184,232	185,298
Corporate debt securities | Level 2 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	184,232	185,298
Agency pass-through certificates
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity securities	1,595,034	1,635,913
Agency pass-through certificates | Level 2 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	828,449	834,297
Held-to-maturity securities	1,655,450	1,646,856
Agency pass-through certificates | Level 2 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	828,449	834,297
Held-to-maturity securities	1,595,034	1,635,913
Commercial MBS
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity securities	15,000
Commercial MBS | Level 2 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	3,465	8,391
Held-to-maturity securities	15,000	0
Commercial MBS | Level 2 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	3,465	8,391
Held-to-maturity securities	$ 15,000	$ 0

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Fair Value Measurements - Investments by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Amortized Cost, Available-for-sale securities
Amortized Cost	$ 1,264,060	$ 1,256,587
Gross Unrealized Gains / Losses, Available-for-sale securities
Gross unrealized gains	4,424	13,829
Gross unrealized loss	(13,083)	(4,207)
Fair Value, Available-for-sale securities
Available-for-sale securities, at fair value	$ 1,255,401	$ 1,266,209
Yield, Available-for-sale securities
Yield	3.28%	2.86%
Amortized Cost, Held-to-maturity securities
Held-to-maturity securities, at amortized cost	$ 1,670,450	$ 1,646,856
Gross Unrealized Gains / Losses, Held-to-maturity securities
Held-to-maturity securities, Gross unrealized gains	635	7,143
Held-to-maturity securities ,Gross unrealized losses	(61,051)	(18,086)
Fair Value, Held-to-maturity securities
Held-to-maturity securities, Fair Value	$ 1,610,034	$ 1,635,913
Yield, Held-to-maturity securities
Held-to-maturity securities, Yield	3.16%	3.14%
Investments	$ 2,934,510	$ 2,903,443
Gross unrealized gains on investments	5,059	20,972
Gross unrealized losses on investments	(74,134)	(22,293)
Total financial assets	$ 2,865,435	$ 2,902,122
Yield on investments	3.21%	3.02%
U.S. government and agency securities
Amortized Cost, Available-for-sale securities
Within 1 year		$ 9,300
1 to 5 years		5,688
5 to 10 years	$ 63,986	69,108
Over 10 years	153,928	127,936
Gross Unrealized Gains / Losses, Available-for-sale securities
Gross unrealized gains, Within 1 year		146
Gross unrealized gains, 1 to 5 years		2
Gross unrealized gains, 5 to 10 years	0	0
Gross unrealized gains, Over 10 years	122	353
Gross unrealized losses, Within 1 year		0
Gross unrealized losses, 1 to 5 years		0
Gross unrealized losses, 5 to 10 years	(1,678)	(1,238)
Gross unrealized losses, Over 10 years	(349)	(218)
Fair Value, Available-for-sale securities
Within 1 year		9,446
1 to 5 years		5,690
5 to 10 years	62,308	67,870
Over 10 years	$ 153,701	$ 128,071
Yield, Available-for-sale securities
Within 1 year		10.38%
1 to 5 years		1.51%
5 to 10 years	2.41%	1.93%
Over 10 years	2.71%	1.92%
Equity securities
Amortized Cost, Available-for-sale securities
1 to 5 years	$ 500	$ 500
Gross Unrealized Gains / Losses, Available-for-sale securities
Gross unrealized gains, 1 to 5 years	0	22
Gross unrealized losses, 1 to 5 years	(9)	0
Fair Value, Available-for-sale securities
1 to 5 years	$ 491	$ 522
Yield, Available-for-sale securities
1 to 5 years	1.80%	1.80%
Corporate debt securities
Amortized Cost, Available-for-sale securities
1 to 5 years	$ 113,727	$ 63,622
5 to 10 years	69,964	119,960
Gross Unrealized Gains / Losses, Available-for-sale securities
Gross unrealized gains, 1 to 5 years	1,687	2,083
Gross unrealized gains, 5 to 10 years	0	210
Gross unrealized losses, 1 to 5 years	(273)	0
Gross unrealized losses, 5 to 10 years	(873)	(577)
Fair Value, Available-for-sale securities
1 to 5 years	115,141	65,705
5 to 10 years	$ 69,091	$ 119,593
Yield, Available-for-sale securities
1 to 5 years	3.60%	2.96%
5 to 10 years	3.23%	2.62%
Municipal bonds
Amortized Cost, Available-for-sale securities
Within 1 year		$ 2,344
1 to 5 years	$ 1,390	1,367
Over 10 years	20,328	20,343
Gross Unrealized Gains / Losses, Available-for-sale securities
Gross unrealized gains, Within 1 year		10
Gross unrealized gains, 1 to 5 years	0	55
Gross unrealized gains, Over 10 years	1,047	2,505
Gross unrealized losses, Within 1 year		0
Gross unrealized losses, 1 to 5 years	(10)	0
Gross unrealized losses, Over 10 years	0	0
Fair Value, Available-for-sale securities
Within 1 year		2,354
1 to 5 years	1,380	1,422
Over 10 years	$ 21,375	$ 22,848
Yield, Available-for-sale securities
Within 1 year		1.23%
1 to 5 years	2.05%	2.05%
Over 10 years	6.45%	6.45%
Agency pass-through certificates
Amortized Cost, Available-for-sale securities
Without single maturity date	$ 836,777	$ 828,069
Gross Unrealized Gains / Losses, Available-for-sale securities
Gross unrealized gains, Without single maturity date	1,563	8,402
Gross unrealized losses, Without single maturity date	(9,891)	(2,174)
Fair Value, Available-for-sale securities
Without single maturity date	$ 828,449	$ 834,297
Yield, Available-for-sale securities
Without single maturity date	3.34%	2.96%
Amortized Cost, Held-to-maturity securities
Held-to-maturity securities, at amortized cost	$ 1,655,450	$ 1,646,856
Gross Unrealized Gains / Losses, Held-to-maturity securities
Held-to-maturity securities, Gross unrealized gains	635	7,143
Held-to-maturity securities ,Gross unrealized losses	(61,051)	(18,086)
Fair Value, Held-to-maturity securities
Held-to-maturity securities, Fair Value	$ 1,595,034	$ 1,635,913
Yield, Held-to-maturity securities
Held-to-maturity securities, Yield	3.16%	3.14%
Commercial MBS
Amortized Cost, Available-for-sale securities
Without single maturity date	$ 3,460	$ 8,350
Gross Unrealized Gains / Losses, Available-for-sale securities
Gross unrealized gains, Without single maturity date	5	41
Gross unrealized losses, Without single maturity date	0	0
Fair Value, Available-for-sale securities
Without single maturity date	$ 3,465	$ 8,391
Yield, Available-for-sale securities
Without single maturity date	4.27%	3.31%
Amortized Cost, Held-to-maturity securities
Held-to-maturity securities, at amortized cost	$ 15,000
Gross Unrealized Gains / Losses, Held-to-maturity securities
Held-to-maturity securities, Gross unrealized gains	0
Held-to-maturity securities ,Gross unrealized losses	0
Fair Value, Held-to-maturity securities
Held-to-maturity securities, Fair Value	$ 15,000
Yield, Held-to-maturity securities
Held-to-maturity securities, Yield	2.94%

XML

Fair Value Measurements - Additional Information (Details) - USD ($)	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Proceeds from sales of available-for-sale securities	$ 0	$ 350,890,000
Available-for-sale securities purchased	166,696,000	0
Held-to-maturity securities purchased	170,836,000	415,729,000
Proceeds from sale of held-to-maturity securities	$ 0	$ 0
Term of contractual due dates of substantially all mortgage-backed securities (in years)	10 years

XML

Fair Value Measurements - Securities in Unrealized Loss Positions (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Gross Losses	$ (13,779)	$ (18,442)
Less than 12 months, Fair Value	751,808	1,187,758
12 months or more, Unrealized Gross Losses	(60,355)	(3,851)
12 months or more, Fair Value	1,640,016	394,922
Total Unrealized Gross Losses	(74,134)	(22,293)
Total, Fair Value	2,391,824	1,582,680
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Gross Losses	0	0
Less than 12 months, Fair Value	0	0
12 months or more, Unrealized Gross Losses	(1,146)	(577)
12 months or more, Fair Value	118,818	49,423
Total Unrealized Gross Losses	(1,146)	(577)
Total, Fair Value	118,818	49,423
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Gross Losses	(10)
Less than 12 months, Fair Value	1,380
12 months or more, Unrealized Gross Losses	0
12 months or more, Fair Value	0
Total Unrealized Gross Losses	(10)
Total, Fair Value	1,380
U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Gross Losses	(64)	(759)
Less than 12 months, Fair Value	43,310	24,400
12 months or more, Unrealized Gross Losses	(1,963)	(697)
12 months or more, Fair Value	120,006	96,195
Total Unrealized Gross Losses	(2,027)	(1,456)
Total, Fair Value	163,316	120,595
Equity securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Gross Losses	(9)
Less than 12 months, Fair Value	491
12 months or more, Unrealized Gross Losses	0
12 months or more, Fair Value	0
Total Unrealized Gross Losses	(9)
Total, Fair Value	491
Agency pass-through certificates
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Gross Losses	(13,696)	(17,683)
Less than 12 months, Fair Value	706,627	1,163,358
12 months or more, Unrealized Gross Losses	(57,246)	(2,577)
12 months or more, Fair Value	1,401,192	249,304
Total Unrealized Gross Losses	(70,942)	(20,260)
Total, Fair Value	$ 2,107,819	$ 1,412,662

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Derivatives and Hedging Activities (Details) - USD ($)	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Derivative [Line Items]
Gain (loss) on derivative instruments	$ 0	$ 0
Asset Derivatives, Fair Value	32,339,000		$ 1,139,000
Liability Derivatives, Fair Value	10,141,000		3,006,000
Interest rate swap agreements
Derivative [Line Items]
Customer derivatives program	781,626,000		1,035,573,000
Notional amount	700,000,000	$ 700,000,000
Commercial loan interest rate swap
Derivative [Line Items]
Notional amount	97,927,000		52,936,000
Interest rate contracts | Other assets
Derivative [Line Items]
Asset Derivatives, Fair Value	10,141,000		1,139,000
Interest rate contracts | Other liabilities
Derivative [Line Items]
Liability Derivatives, Fair Value	10,141,000		1,139,000
Commercial loan hedges | Other assets
Derivative [Line Items]
Asset Derivatives, Fair Value	3,005,000		0
Commercial loan hedges | Other liabilities
Derivative [Line Items]
Liability Derivatives, Fair Value	0		174,000
Borrowings hedges | Other assets
Derivative [Line Items]
Asset Derivatives, Fair Value	19,193,000		0
Borrowings hedges | Other liabilities
Derivative [Line Items]
Liability Derivatives, Fair Value	$ 0		$ 1,693,000

XML

Income Taxes (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jun. 30, 2018	Sep. 30, 2018
Income Tax Disclosures [Line Items]
Tax benefit from re-measurement of deferred tax assets and liabilities	$ 5,387
Scenario, Forecast
Income Tax Disclosures [Line Items]
Blended federal statutory tax rate		24.53%