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Investment securities - Restricted Investment In Stock (Details)	9 Months Ended
	Sep. 30, 2020 security
Available-for-sale and Held-to-maturity securities
Number of securities in continuous unrealized loss position	8
Mortgage-backed Securities, U.S. government-sponsored enterprises
Available-for-sale and Held-to-maturity securities
Number of securities in continuous unrealized loss positions 12 months or longer	4

X

- Definition

The number of securities in continuous unrealized loss position.

+ References

No definition available.

+ Details

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X

- Definition

Number of securities in continuous unrealized loss position for more than 12 months.

+ References

No definition available.

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Details

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