CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ INVESTMENT - USD ($)	3 Months Ended				12 Months Ended
	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		234,169,335			234,169,335
Beginning balance		$ 2,065,792,821		$ 1,937,988,467	$ 2,065,792,821	$ 1,937,988,467	$ 1,963,943,128
Issuance of common stock from stock plan transactions					29,398,272	16,602,274	29,808,787
Issuance of common stock related to acquisitions						5,000,012
Repurchases of common stock					(146,036,137)	(113,894,370)	(324,643,135)
Stock-based compensation expense related to stock options, employee stock purchases, restricted stock, and performance share awards					39,197,422	30,228,606	27,421,645
Dividends declared					(111,824,393)	(112,819,342)	(114,415,382)
Net income	$ 116,944,000	$ 97,578,000	$ 86,168,000	$ 87,529,000	428,403,272	318,757,352	360,797,232
Other comprehensive income (loss)					$ 7,585,812	$ (16,070,178)	(4,923,808)
Ending balance (in shares)	231,455,443		234,169,335		231,455,443	234,169,335
Ending balance	$ 2,312,517,069		$ 2,065,792,821		$ 2,312,517,069	$ 2,065,792,821	$ 1,937,988,467
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		234,169,335		236,440,840	234,169,335	236,440,840	243,692,869
Beginning balance		$ 14,050,160		$ 14,186,450	$ 14,050,160	$ 14,186,450	$ 14,621,572
Issuance of common stock from stock plan transactions (in shares)					2,218,094	1,606,965	2,343,169
Issuance of common stock from stock plan transactions					$ 133,086	$ 96,418	$ 140,590
Issuance of common stock related to acquisitions (in shares)						162,433
Issuance of common stock related to acquisitions						$ 9,746
Repurchases of common stock (in shares)					(4,931,986)	(4,040,903)	(9,595,198)
Repurchases of common stock					$ (295,920)	$ (242,454)	$ (575,712)
Ending balance (in shares)	231,455,443		234,169,335		231,455,443	234,169,335	236,440,840
Ending balance	$ 13,887,326		$ 14,050,160		$ 13,887,326	$ 14,050,160	$ 14,186,450
Additional  Paid-In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		917,499,323		879,413,385	917,499,323	879,413,385	852,771,508
Issuance of common stock from stock plan transactions					29,265,186	16,505,856	29,668,197
Issuance of common stock related to acquisitions						4,990,266
Repurchases of common stock					(17,716,056)	(13,638,790)	(30,447,965)
Stock-based compensation expense related to stock options, employee stock purchases, restricted stock, and performance share awards					39,197,422	30,228,606	27,421,645
Ending balance	968,245,875		917,499,323		968,245,875	917,499,323	879,413,385
Retained  Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		1,148,386,272		1,042,461,388	1,148,386,272	1,042,461,388	1,089,698,996
Repurchases of common stock					(128,024,161)	(100,013,126)	(293,619,458)
Dividends declared					(111,824,393)	(112,819,342)	(114,415,382)
Net income					428,403,272	318,757,352	360,797,232
Ending balance	1,336,940,990		1,148,386,272		1,336,940,990	1,148,386,272	1,042,461,388
Accumulated  Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		$ (14,142,934)		$ 1,927,244	(14,142,934)	1,927,244	6,851,052
Other comprehensive income (loss)					7,585,812	(16,070,178)	(4,923,808)
Ending balance	$ (6,557,122)		$ (14,142,934)		$ (6,557,122)	$ (14,142,934)	$ 1,927,244