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

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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 shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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Share-based Compensation - Additional Information (Detail)		1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 14, 2022 shares	Nov. 30, 2021 Member	Jul. 03, 2022 USD ($) $ / shares shares	Jul. 04, 2021 USD ($)	Jul. 03, 2022 USD ($) $ / shares shares	Jul. 04, 2021 USD ($) $ / shares shares	Jun. 30, 2022 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense \| $			$ 600,000	$ 500,000	$ 1,200,000	$ 900,000
Granted, shares \| shares					10,000
Expected dividend yield			7.40%		7.40%
Shares withheld for tax requirements \| shares					77,340
Tax withholding payments for share-based compensation \| $					$ 1,212,000	$ 1,046,000
Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Closing stock price per share \| $ / shares			$ 11.01		$ 11.01
Share Option Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum expiration period of share based payment awards granted					10 years
Granted, shares \| shares					10,000	0
Weighted-average grant-date fair value per share \| $ / shares					$ 5.46
Unrecognized compensation expense \| $			$ 300,000		$ 300,000
Weighted-average period of recognition					1 year 7 months 6 days
Share Option Awards [Member] \| Share-based Compensation Award, Tranche One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting rights (as percentage)					25.00%
Performance Shares [Member] \| Share-based Compensation Award, Tranche One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting rights (as percentage)					25.00%
Performance Shares [Member] \| Share-based Compensation Award, Tranche One [Member] \| Non-Employee Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting rights (as percentage)					100.00%
Nonvested Share Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period of recognition					2 years 8 months 12 days
Fair value of nonvested share awards \| $					$ 3,300,000	$ 5,300,000
Issuance of nonvested share awards, Shares \| shares					284,630	248,550
Weighted-average grant-date fair value per share, granted \| $ / shares					$ 15.03	$ 15.61
Unrecognized compensation expenses \| $			6,100,000		$ 6,100,000
Nonvested Share Unit Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value of nonvested share awards \| $					0	$ 100,000
Unrecognized compensation expenses \| $			$ 0		$ 0
Nonvested Share Unit Awards [Member] \| Board Members [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vested included in dividend reinvestments \| shares	124,012
Number of persons retired \| Member		1
2019 Equity Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of additional shares available for future grant \| shares							3,300,000
Shares available for future grant \| shares			1,052,734		1,052,734