Operations and Summary of Significant Accounting Policies - Reconciliation of Denominators of Basic and Diluted EPS Calculations (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net earnings		$ 280,608	$ 219,345	$ 172,640
Denominator:
Weighted-average shares used to compute basic EPS (in shares)		34,903	35,011	35,117
Dilutive RSUs, net of tax effect (in shares)		251	399	327
The convertible senior notes (in shares)		1,466	1,453	0
Diluted (in shares)		36,620	36,863	35,444
Net earnings per share:
Basic (in dollars per share)	$ 2.24	$ 8.04	$ 6.27	$ 4.92
Diluted (in dollars per share)	$ 2.13	$ 7.66	$ 5.95	$ 4.87