Benefit Plans - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares held in employee trust (in shares)	130,863	130,863
Initial vesting percentage	25.00%
Vesting percentage	100.00%
Vesting period (in years)	4 years
Cost recognized	$ 480	$ 426	$ 393
Allocated share-based compensation expense	$ 6,636	$ 6,554	$ 6,185
Non-Management Award Grant
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares issued for services (in shares)	69,937	50,245	47,130
Shares issued for services, value	$ 849	$ 587	$ 500
Non-vested Shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Non-options, nonvested, number (in shares)	2,058,890	2,290,644	2,704,729
Number of shares available for grant (in shares)	4,094,587
Compensation cost not yet recognized	$ 7,968
Total compensation cost not yet recognized, period for recognition (in years)	1 year 8 months 12 days
Shares Subject to Time
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Non-options, nonvested, number (in shares)	533,827
Shares Subject to Performance
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Non-options, nonvested, number (in shares)	1,525,063

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Number of common stock held in a trust that has been set up specifically to accumulate stock for the sole purpose of distribution to participating employees but not yet earned.

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Amount of cost for defined contribution plan.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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.

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Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

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Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.

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