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Debt - Narrative (Details) |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
May 02, 2023 $ / shares | Jun. 30, 2023 USD ($) | May 31, 2023 USD ($) $ / shares | May 31, 2020 USD ($) $ / shares | Nov. 30, 2018 USD ($) purchaser d $ / shares shares | Aug. 31, 2023 USD ($) | Sep. 30, 2023 USD ($) shares | Sep. 30, 2023 USD ($) d shares | Sep. 30, 2022 USD ($) shares | Dec. 31, 2022 USD ($) shares
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from Convertible Debt |  |  |  |  |  |  |  | $ 1,230,600,000 | $ 0 |
Number of Initial purchasers | purchaser |  |  |  |  | 2 |  |  |  |  |
Purchases of capped call transactions |  |  |  |  |  |  |  | 101,300,000 | $ 0 |
Deposit assets |  |  |  |  |  |  | $ 5,300,000 | $ 5,300,000 |  |
Common Stock |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Repurchase and conversions of notes (in shares) | shares |  |  |  |  |  |  | 10,600,000 | 10,600,000 | 400,000 |
Shares received from Note Hedge | shares |  |  |  |  |  |  | 10,500,000 | 10,500,000 | 300,000 |
Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total principal amount |  |  |  |  |  |  | $ 2,581,800,000 | $ 2,581,800,000 |  | $ 1,982,300,000
Line of credit |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Term of debt instrument |  | 5 years |  |  |  |  |  |  |  |
Maximum borrowing capacity of revolving credit agreement |  | $ 200,000,000 |  |  |  |  | $ 200,000,000.0 | $ 200,000,000.0 |  |
Option to increase revolving line of credit |  | $ 500,000,000 |  |  |  |  |  |  |  |
Line of credit | Federal Reserve Bank Of New York Rate (NYFRB) |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  |  |  | 0.50% |  |
Line of credit | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  |  |  | 1.00% |  |
Line of credit | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on convertible notes (as percent) |  |  |  |  |  |  | 0.375% | 0.375% |  |
Unused capacity fee (as a percent) |  |  |  |  |  |  |  | 0.175% |  |
Line of credit | Minimum | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  |  |  | 1.375% |  |
Line of credit | Minimum | Simple Risk Free Rate (RFR) |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  |  |  | 0.0326% |  |
Line of credit | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on convertible notes (as percent) |  |  |  |  |  |  | 1.00% | 1.00% |  |
Unused capacity fee (as a percent) |  |  |  |  |  |  |  | 0.25% |  |
Line of credit | Maximum | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  |  |  | 2.00% |  |
Line of credit | Maximum | Simple Risk Free Rate (RFR) |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  |  |  | 0.10% |  |
Senior Convertible Notes due 2023 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on convertible notes (as percent) |  |  |  |  | 0.75% |  |  |  |  |
Total principal amount |  |  |  |  | $ 850,000,000 |  | $ 124,300,000 | $ 124,300,000 |  | 774,800,000
Proceeds from Convertible Debt |  |  |  |  | $ 836,600,000 |  |  |  |  |
Conversion price of convertible notes (in USD per share) | $ / shares |  |  |  |  | $ 41.07 |  |  |  |  |
Debt instrument, convertible principal amount settled |  |  |  |  |  |  | 650,500,000 | 650,500,000 |  |
Debt instrument, convertible principal amount settled through cash |  |  |  |  |  |  | $ 650,500,000 | $ 650,500,000 |  |
Debt instrument convertible principal amount exercised |  |  |  |  |  |  |  |  |  | $ 17,500,000
Shares received from Note Hedge | shares |  |  |  |  |  |  | 10,585,850 | 10,585,850 |  | 287,492
Debt instrument, convertible, principal amount settled |  |  |  |  |  | $ 124,300,000 |  |  |  |
Holder's repurchase price percentage in event of fundamental change (as percent) |  |  |  |  |  |  | 100.00% | 100.00% |  |
Number of trading days | d |  |  |  |  | 60 |  |  |  |  |
Proportion of conversion price (as percent) |  |  |  |  |  |  |  | 130.00% |  |
Redemption price (as percent) |  |  |  |  |  |  |  | 100.00% |  |
Stock counterparties to acquire with warrants purchased (in shares) | shares |  |  |  |  | 20,700,000 |  |  |  |  |
Proceeds from sale of warrants |  |  |  |  | $ 183,800,000 |  |  |  |  |
Exercise price of warrants or rights (in USD per share) | $ / shares |  |  |  |  | $ 49.60 |  |  |  |  |
Conversion ratio |  |  |  |  | 0.0243476 |  |  |  |  |
Senior Convertible Notes due 2023 | Senior Notes | Designated as hedging instrument |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Stock issued upon conversion of senior notes (in shares) | shares |  |  |  |  | 20,700,000 |  |  |  |  |
Equity component of 2025 Notes issuance, net of issuance costs |  |  |  |  | $ 218,900,000 |  |  |  |  |
Senior Convertible Notes due 2023 | Senior Notes | Term one | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 20 |  |
Proportion of applicable conversion price (as percent) |  |  |  |  |  |  |  | 130.00% |  |
Senior Convertible Notes due 2023 | Senior Notes | Term one | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 30 |  |
Senior Convertible Notes due 2023 | Senior Notes | Term two |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 5 |  |
Senior Convertible Notes due 2023 | Senior Notes | Term two | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 5 |  |
Proportion of applicable conversion price (as percent) |  |  |  |  |  |  |  | 98.00% |  |
Senior Convertible Notes due 2023 | Senior Notes | Common Stock |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Repurchase and conversions of notes (in shares) | shares |  |  |  |  |  |  | 10,599,907 | 10,599,907 |  | 425,552
Senior Convertible Notes due 2025 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on convertible notes (as percent) |  |  |  | 0.25% |  |  |  |  |  |
Total principal amount |  |  |  | $ 1,210,000,000 |  |  | $ 1,207,500,000 | $ 1,207,500,000 |  | $ 1,207,500,000
Proceeds from Convertible Debt |  |  |  | $ 1,190,000,000 |  |  |  |  |  |
Conversion price of convertible notes (in USD per share) | $ / shares |  |  |  | $ 150.11 |  |  |  |  |  |
Proportion of conversion price (as percent) |  |  |  |  |  |  |  | 130.00% |  |
Conversion ratio |  |  |  | 0.006662 |  |  |  |  |  |
Senior Convertible Notes due 2025 | Senior Notes | Term one | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 20 |  |
Proportion of applicable conversion price (as percent) |  |  |  |  |  |  |  | 130.00% |  |
Senior Convertible Notes due 2025 | Senior Notes | Term one | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 30 |  |
Senior Convertible Notes due 2025 | Senior Notes | Term two |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 5 |  |
Senior Convertible Notes due 2025 | Senior Notes | Term two | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 5 |  |
Proportion of applicable conversion price (as percent) |  |  |  |  |  |  |  | 98.00% |  |
Senior Convertible Notes due 2028 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate on convertible notes (as percent) |  |  | 0.375% |  |  |  |  |  |  |
Total principal amount |  |  | $ 1,250,000,000 |  |  |  | $ 1,250,000,000 | $ 1,250,000,000 |  | $ 0
Proceeds from Convertible Debt |  |  | $ 1,230,000,000 |  |  |  |  |  |  |
Conversion price of convertible notes (in USD per share) | $ / shares |  |  | $ 162.41 |  |  |  |  |  |  |
Holder's repurchase price percentage in event of fundamental change (as percent) |  |  | 100.00% |  |  |  |  |  |  |
Proportion of conversion price (as percent) |  |  |  |  |  |  |  | 130.00% |  |
Redemption price (as percent) |  |  |  |  |  |  |  | 100.00% |  |
Conversion ratio |  |  | 0.0061571 |  |  |  |  |  |  |
Capped call, cap price (in USD per share) | $ / shares | $ 212.62 |  |  |  |  |  |  |  |  |
Sale of stock premium (as percent) | 80.00% |  |  |  |  |  |  |  |  |
Closing stock price (in USD per share) | $ / shares | $ 118.12 |  |  |  |  |  |  |  |  |
Purchases of capped call transactions |  |  | $ 101,300,000 |  |  |  |  |  |  |
Senior Convertible Notes due 2028 | Senior Notes | Term one | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 20 |  |
Proportion of applicable conversion price (as percent) |  |  |  |  |  |  |  | 130.00% |  |
Senior Convertible Notes due 2028 | Senior Notes | Term one | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 30 |  |
Senior Convertible Notes due 2028 | Senior Notes | Term two |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 5 |  |
Senior Convertible Notes due 2028 | Senior Notes | Term two | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of trading days | d |  |  |  |  |  |  |  | 5 |  |
Proportion of applicable conversion price (as percent) |  |  |  |  |  |  |  | 98.00% |  |

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