Consolidated Statements of Shareholders' Equity Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
BALANCE, SHARES at Feb. 28, 2023		158,079,000
BALANCE at Feb. 28, 2023	$ 5,613,077	$ 79,040	$ 1,713,074	$ 3,723,094	$ 97,869
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	228,298			228,298
Other Comprehensive Income (Loss), Net of Tax	(36,539)				(36,539)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	21,274		21,274
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		18,000
Stock Issued During Period, Value, Stock Options Exercised	988	$ 9	979
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		112,000
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(3,930)	$ 56	(3,986)
BALANCE, SHARES at May. 31, 2023		158,209,000
BALANCE at May. 31, 2023	5,823,168	$ 79,105	1,731,341	3,951,392	61,330
BALANCE, SHARES at Feb. 28, 2023		158,079,000
BALANCE at Feb. 28, 2023	5,613,077	$ 79,040	1,713,074	3,723,094	97,869
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	428,936
Other Comprehensive Income (Loss), Net of Tax	(37,202)
BALANCE, SHARES at Nov. 30, 2023		158,021,000
BALANCE at Nov. 30, 2023	6,044,365	$ 79,011	1,786,924	4,117,763	60,667
BALANCE, SHARES at May. 31, 2023		158,209,000
BALANCE at May. 31, 2023	5,823,168	$ 79,105	1,731,341	3,951,392	61,330
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	118,635			118,635
Other Comprehensive Income (Loss), Net of Tax	17,267				17,267
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	20,256		20,256
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		446,000
Stock Issued During Period, Value, Stock Options Exercised	26,546	$ 223	26,323
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		1,000
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(213)	$ 0	(213)
BALANCE, SHARES at Aug. 31, 2023		158,656,000
BALANCE at Aug. 31, 2023	6,005,659	$ 79,328	1,777,707	4,070,027	78,597
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	82,003			82,003
Other Comprehensive Income (Loss), Net of Tax	(17,930)				(17,930)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	15,728		15,728
Stock Repurchased and Retired During Period, Shares		(649,000)
Stock Repurchased and Retired During Period, Value	(41,903)	$ (324)	(7,312)	(34,267)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		12,000
Stock Issued During Period, Value, Stock Options Exercised	896	$ 6	890
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		2,000
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(88)	$ 1	(89)
BALANCE, SHARES at Nov. 30, 2023		158,021,000
BALANCE at Nov. 30, 2023	$ 6,044,365	$ 79,011	1,786,924	4,117,763	60,667
BALANCE, SHARES at Feb. 29, 2024	157,611,939	157,612,000
BALANCE at Feb. 29, 2024	$ 6,073,740	$ 78,806	1,808,746	4,126,909	59,279
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	152,440			152,440
Other Comprehensive Income (Loss), Net of Tax	2,399				2,399
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	36,708		36,708
Stock Repurchased and Retired During Period, Shares		(1,446,000)
Stock Repurchased and Retired During Period, Value	(104,889)	$ (723)	(17,615)	(86,551)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		138,000
Stock Issued During Period, Value, Stock Options Exercised	8,209	$ 69	8,140
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		49,000
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(1,737)	$ 24	(1,761)
BALANCE, SHARES at May. 31, 2024		156,353,000
BALANCE at May. 31, 2024	$ 6,166,870	$ 78,176	1,834,218	4,192,798	61,678
BALANCE, SHARES at Feb. 29, 2024	157,611,939	157,612,000
BALANCE at Feb. 29, 2024	$ 6,073,740	$ 78,806	1,808,746	4,126,909	59,279
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	410,690
Other Comprehensive Income (Loss), Net of Tax	$ (44,452)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	564,000
BALANCE, SHARES at Nov. 30, 2024	153,908,030	153,908,000
BALANCE at Nov. 30, 2024	$ 6,211,210	$ 76,954	1,853,489	4,265,940	14,827
BALANCE, SHARES at May. 31, 2024		156,353,000
BALANCE at May. 31, 2024	6,166,870	$ 78,176	1,834,218	4,192,798	61,678
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	132,809			132,809
Other Comprehensive Income (Loss), Net of Tax	(52,621)				(52,621)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	17,328		17,328
Stock Repurchased and Retired During Period, Shares		(1,376,000)
Stock Repurchased and Retired During Period, Value	(106,853)	$ (688)	(17,059)	(89,106)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		347,000
Stock Issued During Period, Value, Stock Options Exercised	22,087	$ 173	21,914
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		8,000
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(11)	$ 5	(16)
BALANCE, SHARES at Aug. 31, 2024		155,332,000
BALANCE at Aug. 31, 2024	6,179,609	$ 77,666	1,856,385	4,236,501	9,057
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	125,441			125,441
Other Comprehensive Income (Loss), Net of Tax	5,770				5,770
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	11,262		11,262
Stock Repurchased and Retired During Period, Shares		(1,506,000)
Stock Repurchased and Retired During Period, Value	(115,869)	$ (753)	(19,114)	(96,002)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		79,000
Stock Issued During Period, Value, Stock Options Exercised	5,071	$ 40	5,031
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		3,000
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	$ (74)	$ 1	(75)
BALANCE, SHARES at Nov. 30, 2024	153,908,030	153,908,000
BALANCE at Nov. 30, 2024	$ 6,211,210	$ 76,954	$ 1,853,489	$ 4,265,940	$ 14,827