Convertible Senior Notes - Narrative (Details)	1 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($) day $ / shares	Jan. 31, 2025 USD ($) $ / shares	Jan. 31, 2024 USD ($) $ / shares	Jan. 31, 2023 USD ($)
Debt Instrument [Line Items]
Amortization of debt issuance costs		$ 2,759,000	$ 0	$ 0
Purchases of capped calls related to convertible senior notes		195,500,000	0	$ 0
Aggregate purchase price		$ 1,932,164,000	$ 591,673,000
Weighted-average price per share (in dollars per share) | $ / shares		$ 130.87	$ 147.49
Class A Common Stock
Debt Instrument [Line Items]
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001	$ 0.0001
Class A Common Stock | Shares Repurchased In Privately Negotiated Transactions Entered Into In Connection With Convertible Senior Notes
Debt Instrument [Line Items]
Aggregate purchase price	$ 399,600,000
Weighted-average price per share (in dollars per share) | $ / shares	$ 112.50
Debt Conversion Terms One | Class A Common Stock
Debt Instrument [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001
Convertible Senior Notes
Debt Instrument [Line Items]
Purchases of capped calls related to convertible senior notes	$ 195,500,000
Convertible Senior Notes | Convertible Debt
Debt Instrument [Line Items]
Face amount of debt issued	2,300,000,000
Proceeds from convertible debt, net of issuance costs	2,270,000,000
Debt issuance costs	$ 31,200,000
Redemption price, percentage of principal amount redeemed, under fundamental changes	1
Amortization of debt issuance costs		$ 0
Convertible Senior Notes | Convertible Debt | Debt Conversion Terms One
Debt Instrument [Line Items]
Threshold number of trading days | day	20
Threshold number of consecutive trading days | day	30
Threshold percentage of stock trading price	130.00%
Convertible Senior Notes | Convertible Debt | Debt Conversion Terms Two
Debt Instrument [Line Items]
Threshold number of trading days | day	5
Threshold number of consecutive trading days | day	10
Threshold percentage of stock trading price	98.00%
Convertible Senior Notes Due 2027 | Call Option
Debt Instrument [Line Items]
Cap price, subject to certain adjustments (in dollars per share) | $ / shares	$ 225.00
Convertible Senior Notes Due 2027 | Convertible Debt
Debt Instrument [Line Items]
Face amount of debt issued	$ 1,150,000,000
Stated interest percentage	0.00%
Threshold percentage of stock trading price	1.50
Threshold number of trading days | day	20
Threshold number of consecutive trading days | day	30
Redemption price, percentage	100.00%
Effective interest rate, percentage	0.04%
Convertible Senior Notes Due 2029 | Call Option
Debt Instrument [Line Items]
Cap price, subject to certain adjustments (in dollars per share) | $ / shares	$ 225.00
Convertible Senior Notes Due 2029 | Convertible Debt
Debt Instrument [Line Items]
Face amount of debt issued	$ 1,150,000,000
Stated interest percentage	0.00%
Threshold percentage of stock trading price	1.30
Threshold number of trading days | day	20
Threshold number of consecutive trading days | day	30
Redemption price, percentage	100.00%
Effective interest rate, percentage	0.02%