Securities - Additional Information (Details)	9 Months Ended	12 Months Ended
Sep. 30, 2022 USD ($) Security	Dec. 31, 2021 USD ($) Security
Schedule Of Available For Sale Securities [Line Items]
Available For Sale Securities \| Security	42	29
Held to maturity \| Security	31	1
Available For sale Securities Amount		$ 3,600,000
Sale of Held - to maturity Securities	$ 0	$ 0
Sale of available-for-sale securities	$ 0
Number of available-for-sale securities matured or called \| Security	2	1
Available-for-sale securities matured	$ 5,400,000	$ 2,700,000
Purchases of available-for-sale securities	58,400,000	$ 109,900,000
Purchases of Held-to-maturity securities	$ 501,942,000
Number of available-for-sale securities with unrealized loss positions \| Security	42	23
Number of held-to-maturity securities with unrealized loss positions \| Security	28	1
Securities pledged		$ 0
Held to maturity securities, amortized costs	$ 494,297,000	$ 934,000
FHLBNY
Schedule Of Available For Sale Securities [Line Items]
Held to maturity securities, amortized costs	$ 85,000,000.0
Number of held-to-maturity securities \| Security	2
Available For Sale Of Security [Member]
Schedule Of Available For Sale Securities [Line Items]
Available For Sale Securities \| Security		2

Available for sale securities in amount.

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Available for sale securities purchase during the period.

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Debt securities held-to-maturity unrealized loss position number of positions.

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Held-to-maturity securities, number of securities held.

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Investment portfolio number of available for sale securities.

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Number of available-for-sale securities matured or called.

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Number of held to maturity securities.

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Sales of available for sale securities.

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Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Number of investments in debt securities 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.

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Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity), sold.

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Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).

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Amount of cash outflow through purchase of long-term held-to-maturity securities.

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Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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