Earnings Per Share (Details) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2024 USD ($) Vote $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares
Earnings Per Share [Abstract]
Voting rights conversion basis | Vote			1
Common Stock
Earnings Per Share [Abstract]
Percentage of earnings assumed to be distributed as dividends in earnings per share calculation			100.00%
Preferential dividend rate (as percent)			105.00%
Number of votes per share | Vote			1
Numerator:
Distributed earnings	$ 4,842	$ 4,527	$ 14,173	$ 13,250
(Excess distributions) undistributed earnings	(275)	11,349	(3,271)	24,981
Basic	4,567	15,876	10,902	38,231
Diluted	$ 4,928	$ 17,154	$ 11,759	$ 41,317
Denominator:
Weighted average shares outstanding - basic (in shares) | shares	15,133	15,071	15,032	15,008
Assumed conversion of Class A Common Stock (in shares) | shares	1,275	1,282	1,277	1,283
Dilutive options, awards and common stock equivalents (in shares) | shares	337	483	414	498
Total weighted-average diluted Common Stock (in shares) | shares	16,745	16,836	16,723	16,789
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share) | $ / shares	$ 0.30	$ 1.05	$ 0.73	$ 2.55
Diluted earnings per share (in dollars per share) | $ / shares	$ 0.29	$ 1.02	$ 0.70	$ 2.46
Class A Common Stock
Earnings Per Share [Abstract]
Number of votes per share | Vote			10
Numerator:
Distributed earnings	$ 383	$ 360	$ 1,122	$ 1,051
(Excess distributions) undistributed earnings	(22)	918	(265)	2,035
Basic	$ 361	$ 1,278	$ 857	$ 3,086
Denominator:
Weighted average shares outstanding (in shares) | shares	1,275	1,282	1,277	1,283
Earnings Per Share [Abstract]
Basic earnings per share (in dollars per share) | $ / shares	$ 0.28	$ 1.00	$ 0.67	$ 2.41
Diluted earnings per share (in dollars per share) | $ / shares	$ 0.28	$ 0.98	$ 0.67	$ 2.36
Maximum
Earnings Per Share [Abstract]
Percentage of total number of directors			75.00%
Minimum
Earnings Per Share [Abstract]
Percentage of total number of directors			25.00%