| Item | Type | Period | Balance | Description | | Debt Securities, Held-to-Maturity, Fair Value, Total | $ | instant | debit | Fair value of investment in debt security measured at amortized cost (held-to-maturity). |
| Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss | $ | instant | debit | Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity). |
| Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain | $ | instant | credit | Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity). |
| Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss | text | | | |
| Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Total | $ | instant | debit | Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). |
| Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Beginning Balance | $ | instant | credit | Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity). |
| Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Total | $ | instant | debit | Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). |