Segment Information - Intersegment Activity Eliminated in Arriving at Consolidated Totals was Included in "All Other" Category (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenues	$ 8,178,559	$ 5,991,772	$ 5,954,761
Income taxes	619,460	596,403	416,369
Net income	1,991,663	1,858,746	1,353,152
Intersegment Activity Eliminated in Consolidated Totals [Member]
Segment Reporting Information [Line Items]
Revenues	(52,865)	(55,556)	(47,604)
Expenses	(15,273)	(13,599)	(14,038)
Income taxes	(9,736)	(10,846)	(8,824)
Net income	$ (27,856)	$ (31,111)	$ (24,742)