XML 63 R46.htm IDEA: XBRL DOCUMENT v3.22.2.2
Summary of Significant Accounting Policies - Goodwill and Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Goodwill    
Goodwill, beginning of period $ 303,457 $ 302,707
Additions 0 750
Goodwill, end of period 303,457 303,457
Core Deposit and Other Intangibles    
Intangible assets, beginning of period 6,562 7,199
Additions 0 750
Amortization (1,010) (1,387)
Intangible assets, end of period 5,552 6,562
Total    
Goodwill and intangible assets, beginning of period 310,019 309,906
Additions 0 1,500
Amortization (1,010) (1,387)
Goodwill and intangible assets, end of period $ 309,009 $ 310,019