Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Millions		3 Months Ended
Jul. 15, 2021 $ / shares shares	Mar. 31, 2022 USD ($) $ / shares shares
Exchange ratio		2.8409
Minimum [Member]
Annual gross revenue to cease emerging growth company status \| $		$ 1,070
Non-convertible debt issued during three years period to cease emerging growth company status \| $		1,000
Market value of equity securties issued to non-affiliates to cease emerging growth company status \| $		$ 700
Conversion and Reorganization Plan [Member] \| Cullman Foundation [Member]
Sale of stock, shares	148,210
Conversion and Reorganization Plan [Member] \| Common Stock [Member]
Sale of stock, shares	3,929,776
Sale of stock, price per share \| $ / shares	$ 10.00
Conversion and Reorganization Plan [Member] \| 2009 ESOP [Member]
Sale of stock, shares		354,599
Sale of stock, price per share \| $ / shares		$ 10
Conversion and Reorganization Plan [Member] \| 2009 ESOP [Member] \| Common Stock [Member]
Sale of stock, shares	354,599
Sale of stock, price per share \| $ / shares	$ 10.00

Annual gross revenue to cease emerging growth company status.

No definition available.

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Market value of equity securties issued to non-affiliates to cease emerging growth company status.

No definition available.

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Non-convertible debt issued during three years period to cease emerging growth company status.

No definition available.

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Stock exchange ratio.

No definition available.

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

No definition available.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

No definition available.

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