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Summary of Significant Accounting Policies (Tables)

6 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Schedule of Intangible Assets and Goodwill

The table below provides detail regarding the Company's intangible assets.

			Goodwill						Core Deposit and Other Intangibles						Total
			(In thousands)
Balance at September 30, 2023			$	304,750					$	5,869					$	310,619
Additions			375						375						750
Amortization			—						(266)						(266)
Balance at December 31, 2023			305,125						5,978						311,103
Additions			106,276						37,462						143,738
Amortization			—						(1,302)						(1,302)
Balance at March 31, 2024			$	411,401					$	42,138					$	453,539

Schedule of Future Amortization Expense

The table below presents the estimated future amortization expense of other intangibles for the next five years as of March 31, 2024.

Fiscal Year						Expected Expense
						(In thousands)
2024						$	6,155
2025						9,768
2026						7,217
2027						5,473
2028						5,111
Thereafter						8,414
Total Intangibles Assets						$	42,138

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Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.

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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
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-Publisher FASB
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Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

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-Name Accounting Standards Codification
-Topic 350
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-Section 50
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