Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2025

Earnings Per Share [Abstract]

Schedule of Reconciliation of the Numerators and Denominators Used in the Basic and Diluted Per-Share Computations

A reconciliation of the numerators and denominators used in the basic and diluted per-share computations is presented as follows for each class of common stock: 

	Three months ended June 30,
	2025					2024
(dollars in thousands, except per share data)	Allocated net income (numerator)		Weighted shares (denominator)	Per-share amount		Allocated net income (numerator)		Weighted shares (denominator)	Per-share amount
Class A – Basic EPS:
Income available to Class A stockholders	$	173,254	46,189,063	$	3.75	$	162,561	46,189,042	$	3.52
Dilutive effect of stock-based awards	0		14,544	—		0		15,457	—
Assumed conversion of Class B shares	1,431		6,100,800	—		1,342		6,100,800	—
Class A – Diluted EPS:
Income available to Class A stockholders on Class A equivalent shares	$	174,685	52,304,407	$	3.34	$	163,903	52,305,299	$	3.13
Class B – Basic EPS:
Income available to Class B stockholders	$	1,431	2,542	$	563	$	1,342	2,542	$	528
Class B – Diluted EPS:
Income available to Class B stockholders	$	1,430	2,542	$	563	$	1,342	2,542	$	528
	Six months ended June 30,
	2025					2024
(dollars in thousands, except per share data)	Allocated net income (numerator)		Weighted shares (denominator)	Per-share amount		Allocated net income (numerator)		Weighted shares (denominator)	Per-share amount
Class A – Basic EPS:
Income available to Class A stockholders	$	310,538	46,188,984	$	6.72	$	286,093	46,189,028	$	6.19
Dilutive effect of stock-based awards	0		14,613	—		0		13,723	—
Assumed conversion of Class B shares	2,564		6,100,800	—		2,362		6,100,800	—
Class A – Diluted EPS:
Income available to Class A stockholders on Class A equivalent shares	$	313,102	52,304,397	$	5.99	$	288,455	52,303,551	$	5.52
Class B – Basic EPS:
Income available to Class B stockholders	$	2,564	2,542	$	1,008	$	2,362	2,542	$	929
Class B – Diluted EPS:
Income available to Class B stockholders	$	2,563	2,542	$	1,008	$	2,361	2,542	$	929