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Transfers Between Fair Value Hierarchies, Assets (Liabilities)

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Fair value of financial and nonfinancial obligations.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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Fair Values of Financial Instruments (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers between fair value hierarchy	$ 0	$ 0
Total Loans Receivable	2,913,394,000	3,200,549,000	$ 3,033,784,000				$ 3,354,921,000
Allowance for credit losses	50,658,000	$ 35,243,000	34,789,000	$ 51,484,000	$ 34,563,000	$ 33,608,000	$ 30,205,000	$ 28,882,000	$ 32,373,000
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0		0
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0		0
Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses (recoveries) on impaired loans	9,300,000		7,600,000
(Level 3) Significant Unobservable Inputs [Member] \| Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Loans Receivable	51,900,000		31,200,000
Allowance for credit losses	$ 27,500,000		$ 11,800,000