Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Computation of earnings per share and reconciliation of basic and diluted weighted average common shares outstanding

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2023		2022		2023		2022
Net income	$	137,843	$	190,055	$	471,792	$	676,600
Amounts allocated to participating securities	(726)		(1,019)		(2,504)		(3,764)
Net income attributable to common stockholders	$	137,117	$	189,036	$	469,288	$	672,836
Weighted average common shares outstanding:
Basic	38,735		39,214		38,816		39,599
Effect of dilutive securities:
Stock options and employee stock purchase plan	288		366		296		413
Diluted	39,023		39,580		39,112		40,012
Earnings per share attributable to common stockholders:
Basic	$	3.54	$	4.82	$	12.09	$	16.99
Diluted	$	3.51	$	4.78	$	12.00	$	16.82
Anti-dilutive stock options excluded from diluted earnings per share computations (1)	31		33		64		33