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Restricted Available-for-Sale Investments (Tables)

9 Months Ended

Sep. 30, 2025

Investments, Debt and Equity Securities [Abstract]

Reconciliation of Restricted AFS Investments

The following tables reconcile the amortized cost, gross unrealized gains and losses included in accumulated other comprehensive income or loss, and estimated fair value of the Company’s restricted AFS investments as of the periods indicated:

		September 30, 2025
Dollars in thousands		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
Restricted investments		$	22,355			$	14			$	(25	)		$	22,344

		December 31, 2024
Dollars in thousands		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
Restricted investments		$	21,633			$	92			$	(13	)		$	21,712

Summary of Gross Unrealized Losses And Estimated Fair Values of Restricted AFS Investments

The following tables include the gross unrealized losses and estimated fair values of restricted AFS investments that were in a continuous unrealized loss position, for which no allowance for credit loss has been recorded, as of the periods indicated:

		September 30, 2025
		Less than 12 Months								12 Months or Longer								Total
Dollars in thousands		Estimated Fair Value				Gross Unrealized Losses				Estimated Fair Value				Gross Unrealized Losses				Estimated Fair Value				Gross Unrealized Losses
Restricted investments		$	2,212			$	(25	)		$	—			$	—			$	2,212			$	(25	)

		December 31, 2024
		Less than 12 Months								12 Months or Longer								Total
Dollars in thousands		Estimated Fair Value				Gross Unrealized Losses				Estimated Fair Value				Gross Unrealized Losses				Estimated Fair Value				Gross Unrealized Losses
Restricted investments		$	2,205			$	(13	)		$	—			$	—			$	2,205			$	(13	)

Summary of Amortized Cost And Estimated Fair Values of Restricted AFS Investments by Contractual Maturity

The following table includes the amortized cost and estimated fair values of restricted AFS investments by contractual maturity as of the period indicated:

		September 30, 2025
Dollars in thousands		Amortized Cost				Estimated Fair Value
Due in one year		$	20,117			$	20,132
Due within one year to five years			2,238				2,212
Due within five years to ten years			—				—
Due after ten years			—				—
Total		$	22,355			$	22,344

X

- Definition

Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479081/326-30-55-8

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-6

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479106/326-30-50-4

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Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

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- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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