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Fair value of unvested restricted stock awards.

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Share based compensation arrangement by share based payment award equity instruments other than options expected to vest grants in period.

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Aggregate number of common shares reserved for future issuance.

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Face amount or stated value per share of common stock.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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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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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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of options vested.

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Number of share options (or share units) exercised during the current period.

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Share-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended						6 Months Ended	12 Months Ended
	Oct. 30, 2014	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2017	Oct. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common shares available for future grants		398,137						398,137
Common stock, voting par value		$ 0.01		$ 0.01				$ 0.01	$ 0.01
Unrecognized stock option compensation expenses		$ 0						$ 0
Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		86,001	117,254	23,092	25,866	11,031	55,908
Restricted Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized stock option compensation expenses		$ 12,050				$ 8,578		$ 12,050
Restricted Shares \| Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of restricted voting common stock granted								293,272
Common stock, voting par value		$ 0.01						$ 0.01
Shares vest on grant date								1,219
Restricted Shares \| Common Stock \| Each Anniversary of Grant Date Over Four Years
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vest on grant date								166,290
Award vesting period								4 years
Restricted Shares \| Common Stock \| Each Anniversary of Grant Date Vest Over Three Years
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vest on grant date								69,910
Award vesting period								3 years
Restricted Shares \| Common Stock \| Third Anniversary of Grant Date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vest on grant date								10,589
Restricted Shares \| Common Stock \| Share-based Payment Arrangement, Tranche One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vest on grant date								2,776
Award vesting period								1 year
Performance-based Restricted Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of restricted voting common stock granted								42,488
Omnibus Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common stock reserved for issuance										1,550,000
Omnibus Plan \| Restricted Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of restricted voting common stock granted								293,272
Restricted shares vested								146,655	148,577
Fair value of restricted shares, vested								$ 3,900	$ 3,400
Fair value of unvested restricted stock awards		$ 16,400						$ 16,400
Omnibus Plan \| Time Options Grants \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period								4 years
Omnibus Plan \| Time Options Grants \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period								1 year
BYB Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common shares available for future grants										0
Number of options granted	1,846,968
Number of shares outstanding		816,060		1,337,048				816,060	1,337,048
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period								520,988	53,531
Proceeds from the exercise of stock options								$ 470,000	$ 751,000
Tax benefit from exercise of stock options								$ 2,100	$ 121,000
Options vested								0
BYB Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common shares available for future grants											2,476,122
BYB Plan \| Time Options Grants
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award contractual term								10 years
BYB Plan \| Time Options Grants \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period								5 years
BYB Plan \| Time Options Grants \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period								1 year
BYB Plan \| Performance Options Grants
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award contractual term								10 years
BYB Plan \| Performance Options Grants \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period								5 years
BYB Plan \| Performance Options Grants \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period								1 year
FEB Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares outstanding		170,697		170,697				170,697	170,697
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period								0	62,366
Proceeds from the exercise of stock options									$ 705,000
Tax benefit from exercise of stock options									$ 153,000
Options vested								0
Conversion calculation percentage		4.725%						4.725%