Fair Value Measurements (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Jul. 31, 2025
Cash equivalents:
Cash equivalents	$ 835,742	$ 1,543,609
Short-term investments:
Short-term investments	2,556,995	1,183,386
Total cash equivalents and short-term investments	3,392,737	2,726,995
Foreign currency contracts \| Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts assets-current	14,199	10,713
Contract assets-noncurrent	1,969	3,705
Foreign currency contracts liabilities-current	13,784	4,006
Foreign currency contracts liabilities-noncurrent	3,943	1,319
Non-designated derivative instruments:
Foreign currency contracts assets-current	14,199	10,713
Foreign currency contracts liabilities-current	13,784	4,006
Foreign currency contracts \| Not Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts assets-current	3,987	5,115
Foreign currency contracts liabilities-current	2,573	3,956
Non-designated derivative instruments:
Foreign currency contracts assets-current	3,987	5,115
Foreign currency contracts liabilities-current	2,573	3,956
Interest rate contracts \| Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts liabilities-current	2,287
Foreign currency contracts liabilities-noncurrent	4,692
Non-designated derivative instruments:
Foreign currency contracts liabilities-current	2,287
Level I
Cash equivalents:
Cash equivalents	788,013	1,403,678
Short-term investments:
Short-term investments	0	0
Total cash equivalents and short-term investments	788,013	1,403,678
Level I \| Foreign currency contracts \| Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts assets-current	0	0
Contract assets-noncurrent	0	0
Foreign currency contracts liabilities-current	0	0
Foreign currency contracts liabilities-noncurrent	0	0
Non-designated derivative instruments:
Foreign currency contracts assets-current	0	0
Foreign currency contracts liabilities-current	0	0
Level I \| Foreign currency contracts \| Not Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts assets-current	0	0
Foreign currency contracts liabilities-current	0	0
Non-designated derivative instruments:
Foreign currency contracts assets-current	0	0
Foreign currency contracts liabilities-current	0	0
Level I \| Interest rate contracts \| Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts liabilities-current	0
Foreign currency contracts liabilities-noncurrent	0
Non-designated derivative instruments:
Foreign currency contracts liabilities-current	0
Level II
Cash equivalents:
Cash equivalents	47,729	139,931
Short-term investments:
Short-term investments	2,556,995	1,183,386
Total cash equivalents and short-term investments	2,604,724	1,323,317
Level II \| Foreign currency contracts \| Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts assets-current	14,199	10,713
Contract assets-noncurrent	1,969	3,705
Foreign currency contracts liabilities-current	13,784	4,006
Foreign currency contracts liabilities-noncurrent	3,943	1,319
Non-designated derivative instruments:
Foreign currency contracts assets-current	14,199	10,713
Foreign currency contracts liabilities-current	13,784	4,006
Level II \| Foreign currency contracts \| Not Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts assets-current	3,987	5,115
Foreign currency contracts liabilities-current	2,573	3,956
Non-designated derivative instruments:
Foreign currency contracts assets-current	3,987	5,115
Foreign currency contracts liabilities-current	2,573	3,956
Level II \| Interest rate contracts \| Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts liabilities-current	2,287
Foreign currency contracts liabilities-noncurrent	4,692
Non-designated derivative instruments:
Foreign currency contracts liabilities-current	2,287
Level III
Cash equivalents:
Cash equivalents	0	0
Short-term investments:
Short-term investments	0	0
Total cash equivalents and short-term investments	0	0
Level III \| Foreign currency contracts \| Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts assets-current	0	0
Contract assets-noncurrent	0	0
Foreign currency contracts liabilities-current	0	0
Foreign currency contracts liabilities-noncurrent	0	0
Non-designated derivative instruments:
Foreign currency contracts assets-current	0	0
Foreign currency contracts liabilities-current	0	0
Level III \| Foreign currency contracts \| Not Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts assets-current	0	0
Foreign currency contracts liabilities-current	0	0
Non-designated derivative instruments:
Foreign currency contracts assets-current	0	0
Foreign currency contracts liabilities-current	0	0
Level III \| Interest rate contracts \| Designated as Hedging Instrument
Designated derivative instruments:
Foreign currency contracts liabilities-current	0
Foreign currency contracts liabilities-noncurrent	0
Non-designated derivative instruments:
Foreign currency contracts liabilities-current	0
U.S. treasury securities
Short-term investments:
Short-term investments	439,900	230,999
U.S. treasury securities \| Level I
Short-term investments:
Short-term investments	0	0
U.S. treasury securities \| Level II
Short-term investments:
Short-term investments	439,900	230,999
U.S. treasury securities \| Level III
Short-term investments:
Short-term investments	0	0
U.S. government agency securities
Short-term investments:
Short-term investments	54,690	74,992
U.S. government agency securities \| Level I
Short-term investments:
Short-term investments	0	0
U.S. government agency securities \| Level II
Short-term investments:
Short-term investments	54,690	74,992
U.S. government agency securities \| Level III
Short-term investments:
Short-term investments	0	0
Corporate debt securities
Short-term investments:
Short-term investments	1,744,709	877,395
Corporate debt securities \| Level I
Short-term investments:
Short-term investments	0	0
Corporate debt securities \| Level II
Short-term investments:
Short-term investments	1,744,709	877,395
Corporate debt securities \| Level III
Short-term investments:
Short-term investments	0	0
Certificates of deposit
Short-term investments:
Short-term investments	95,051
Certificates of deposit \| Level I
Short-term investments:
Short-term investments	0
Certificates of deposit \| Level II
Short-term investments:
Short-term investments	95,051
Certificates of deposit \| Level III
Short-term investments:
Short-term investments	0
Asset-backed securities
Short-term investments:
Short-term investments	217,635
Asset-backed securities \| Level I
Short-term investments:
Short-term investments	0
Asset-backed securities \| Level II
Short-term investments:
Short-term investments	217,635
Asset-backed securities \| Level III
Short-term investments:
Short-term investments	0
Non-U.S. government securities
Short-term investments:
Short-term investments	5,010
Non-U.S. government securities \| Level I
Short-term investments:
Short-term investments	0
Non-U.S. government securities \| Level II
Short-term investments:
Short-term investments	5,010
Non-U.S. government securities \| Level III
Short-term investments:
Short-term investments	0
Money market funds
Cash equivalents:
Cash equivalents	788,013	1,403,678
Money market funds \| Level I
Cash equivalents:
Cash equivalents	788,013	1,403,678
Money market funds \| Level II
Cash equivalents:
Cash equivalents	0	0
Money market funds \| Level III
Cash equivalents:
Cash equivalents	0	0
Corporate debt securities
Cash equivalents:
Cash equivalents		8,468
Corporate debt securities \| Level I
Cash equivalents:
Cash equivalents		0
Corporate debt securities \| Level II
Cash equivalents:
Cash equivalents		8,468
Corporate debt securities \| Level III
Cash equivalents:
Cash equivalents		0
Certificates of deposit
Cash equivalents:
Cash equivalents	47,729	131,463
Certificates of deposit \| Level I
Cash equivalents:
Cash equivalents	0	0
Certificates of deposit \| Level II
Cash equivalents:
Cash equivalents	47,729	131,463
Certificates of deposit \| Level III
Cash equivalents:
Cash equivalents	$ 0	$ 0

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