Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Sep. 30, 2017
Assets
Cash and cash equivalents	$ 634,321	$ 100,914
Short-term investments	60	61
Total cash and cash equivalents	634,381	100,975
Securities available-for-sale, at fair value	852,213	557,176
Securities held-to-maturity, at amortized cost (fair value of $245,477 and $131,822 at March 31, 2018 and September 30, 2017, respectively)	254,131	132,939
Federal Home Loan Bank stock	29,381	35,844
Loans receivable, net	4,479,919	4,307,623
Accrued interest receivable	16,614	14,687
Real estate owned	959	393
Office properties and equipment, net	43,706	40,835
Bank-owned life insurance	151,585	149,432
Goodwill and intangible assets	5,976	6,019
Other assets	96,016	83,405
Total assets	6,564,881	5,429,328
Liabilities:
Deposits	5,395,253	4,123,428
Borrowings	589,430	733,043
Advance payments by borrowers for taxes and insurance	28,522	27,118
Accrued expenses and other liabilities	77,772	69,825
Total liabilities	6,090,977	4,953,414
Stockholder's equity:
Retained earnings	549,264	522,094
Accumulated other comprehensive loss, net of tax	(75,360)	(46,180)
Total stockholder's equity	473,904	475,914
Total liabilities and stockholder's equity	$ 6,564,881	$ 5,429,328