Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share

Net earnings for the periods shown below are allocated between Class A shares and Class B shares based upon (1) the proportionate number of shares issued and outstanding as of the end of the period, and (2) the per share dividend rights of the two classes under the Company's Restated Certificate of Incorporation (the Class B dividend per share is equal to one-half the Class A dividend per share).

	Years Ended December 31,
	2021			2020		2019
	Class A		Class B	Class A	Class B	Class A	Class B
	(In thousands except per share amounts)
Numerator for Basic and Diluted Earnings Per Share:
Net earnings	$	180,681		92,312		131,616
Dividends – Class A shares	(1,237)			(1,237)		(1,237)
Dividends – Class B shares	(36)			(36)		(36)
Undistributed earnings	$	179,408		91,039		130,343
Allocation of net earnings:
Dividends	$	1,237	36	1,237	36	1,237	36
Allocation of undistributed earnings	174,334		5,074	88,464	2,575	126,657	3,686
Net earnings	$	175,571	5,110	89,701	2,611	127,894	3,722
Denominator:
Basic earnings per share - weighted-average shares	3,436		200	3,436	200	3,436	200
Effect of dilutive stock options	—		—	—	—	—	—
Diluted earnings per share - adjusted weighted-average shares for assumed conversions	3,436		200	3,436	200	3,436	200
Basic earnings per share	$	51.10	25.55	26.11	13.05	37.22	18.61
Diluted earnings per share	$	51.10	25.55	26.11	13.05	37.22	18.61