XML 21 R11.htm IDEA: XBRL DOCUMENT
v3.23.1

Restricted Available-for-Sale Investments | 3 Months Ended
--- | ---
Mar. 31, 2023
Investments Debt And Equity Securities [Abstract] |
Restricted Available-for-Sale Investments | Note 4. Restricted Available-for-Sale Investments The following table reconciles 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 available-for-sale investments as of the periods indicated:
|  | March 31, 2023 |
Dollars in thousands |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |
Restricted investments |  | $ | 22,968 |  |  | $ | — |  |  | $ | (479 | ) |  | $ | 22,489 |
|  | December 31, 2022 |
Dollars in thousands |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |
Restricted investments |  | $ | 21,158 |  |  | $ | — |  |  | $ | (742 | ) |  | $ | 20,416 |
The following table includes the gross unrealized losses and estimated fair values of restricted available-for-sale investments that were in a continuous unrealized loss position, for which no allowance for credit loss has been recorded, as of the periods indicated:
|  | March 31, 2023 |
|  | 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 |  | $ | 22,489 |  |  | $ | (479 | ) |  | $ | — |  |  | $ | — |  |  | $ | 22,489 |  |  | $ | (479 | )
|  | December 31, 2022 |
|  | 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 |  | $ | 20,416 |  |  | $ | (742 | ) |  | $ | — |  |  | $ | — |  |  | $ | 20,416 |  |  | $ | (742 | )
The restricted available-for-sale investments consist of U.S. Treasuries which are measured at fair value and include accrued interest receivables of $0.1 million and $0.3 million as of March 31, 2023 and December 31, 2022, respectively. The investments consist of highly rated securities backed by the U.S. federal government. As a result, the Company has not recorded an allowance for credit losses related to the restricted available-for-sale investments. Changes in fair value are the result of recent increases in interest rates by the Federal Reserve that occurred after the purchase of the investments. The following table includes the amortized cost and estimated fair values of restricted available-for-sale investments by contractual maturity as of the periods indicated:
|  | March 31, 2023 |
Dollars in thousands |  | Amortized Cost |  |  | Estimated Fair Value |
Due in one year |  | $ | 4,037 |  |  | $ | 4,020 |
Due within one year to five years |  |  | 18,931 |  |  |  | 18,469 |
Due within five years to ten years |  |  | — |  |  |  | — |
Due after ten years |  |  | — |  |  |  | — |
Total restricted available-for-sale investments |  | $ | 22,968 |  |  | $ | 22,489 |
The following table includes the proceeds from sold or matured restricted available-for-sale investments for the periods indicated:
|  | Three Months Ended |
Dollars in thousands |  | March 31, 2023 |  |  | March 31, 2022 |
Purchase of restricted available-for-sale investments |  | $ | 1,900 |  |  | $ | — |
The Company had no gross realized gains or losses during the three months ended March 31, 2023 and 2022, respectively. For additional information on the Company's restricted available-for-sale investments, see Note 8, "Disclosure About Fair Value of Financial Instruments."

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI https://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
Name: | us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration