Investment and Equity Securities - Amortized Cost and Fair Value of Held to Maturity Securities Portfolio (Detail) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | ||
| Due after one but within five years, Amortized Cost | $ 5,800 | |
| Due after five but within ten years, Amortized Cost | 7,077 | |
| Due after ten years, Amortized cost | 9,047 | |
| Total Securities held for maturity, Amortized Cost | 21,924 | |
| Due after one but within five years, Estimated Fair Value | 5,593 | |
| Due after five but within ten years, Estimated Fair Value | 6,656 | |
| Due after ten years, Estimated Fair Value | 8,124 | |
| Total Securities held for maturity, Estimated Fair Value | $ 20,373 | $ 20,208 |
| Due after one but within five years, Book Yield | 7.66% | |
| Due after five but within ten years, Book Yield | 3.36% | |
| Due after ten years, Book Yield | 3.37% | |
| Total Securities held for maturity, Book Yield | 4.50% |
| X | ||||||||||
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities after five but within ten years yield. No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities after ten years yield. No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities debt maturities after five through ten years amortized cost. No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities debt maturities after one but within five years yield. No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities debt maturities after one through five years amortized cost. No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities debt maturities after ten years amortized cost. No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities debt securities to yield. No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities due after five years through ten years fair value. No definition available.
|
| X | ||||||||||
- Definition Held to maturity securities due after ten years fair value. No definition available.
|