Long-Term Debt - Additional Information (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
May 31, 2022 USD ($) | Feb. 28, 2022 USD ($) d $ / shares shares | Apr. 30, 2021 USD ($) $ / shares shares | Apr. 30, 2020 USD ($) $ / shares shares | Aug. 31, 2019 USD ($) $ / shares shares | Sep. 30, 2022 USD ($) $ / shares | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) $ / shares | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) shares |
Debt Instrument [Line Items] | | | | | | | | | | |
Proceeds from issuance of convertible notes, net of issuance costs | | | | | | | | $ 1,483,500,000 | $ 1,137,227,000 | |
Induced conversion expense related to convertible notes | | | | | | | $ 4,536,000 | | 41,538,000 | |
Amortization of debt issuance costs | | | | | | $ 1,835,000 | 1,109,000 | 5,028,000 | 3,301,000 | |
2028 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument, principal amount | | $ 1,500,000,000 | | | | 1,500,000,000 | | $ 1,500,000,000 | | |
Indenture date | | Feb. 11, 2022 | | | | | | | | |
Proceeds from issuance of convertible notes, net of issuance costs | | $ 1,310,000,000 | | | | | | | | |
Interest payment beginning date | | Sep. 01, 2022 | | | | | | | | |
Debt instrument, interest rate | | 0.125% | | | | | | | | |
Debt instrument, interest rate terms | | | | | | | | Interest is payable in cash semi-annually in arrears beginning on September 1, 2022 at a rate of 0.125% per year. | | |
Debt instrument, maturity date | | Mar. 01, 2028 | | | | | | | | |
Debt instrument, redemption price percentage | | 100% | | | | | | | | |
Debt instrument convertible, amortization period | | | | | | | | 5 years 4 months 24 days | | |
Cap price, net cost | | | | | | $ 177,000,000 | | $ 177,000,000 | | |
2028 Notes | Class A Common Stock | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Shares issued upon conversion of each $1000 principal amount | shares | | 17.7494 | | | | | | | | |
Debt instrument, convertible principal amount used in conversion rate | | $ 1,000 | | | | | | | | |
Conversion price per share | $ / shares | | $ 56.34 | | | | | | | | |
Debt instrument convertible, percentage of conversion price | | 130% | | | | | | | | |
Debt instrument convertible, number of trading days | d | | 20 | | | | | | | | |
Debt instrument, redemption price percentage | | 100% | | | | | | | | |
Cap price, per share | $ / shares | | | | | | $ 93.90 | | $ 93.90 | | |
2028 Notes | Class A Common Stock | Scenario One | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument convertible, percentage of conversion price | | 130% | | | | | | | | |
Debt instrument convertible, number of trading days | d | | 20 | | | | | | | | |
Debt instrument convertible, number of consecutive trading days | d | | 30 | | | | | | | | |
2028 Notes | Class A Common Stock | Scenario Two | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument, convertible principal amount used in conversion rate | | $ 1,000 | | | | | | | | |
Debt instrument convertible, number of consecutive trading days | d | | 10 | | | | | | | | |
Debt instrument, convertible, threshold business days | | 5 days | | | | | | | | |
2028 Notes | Class A Common Stock | Scenario Two | Maximum | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument convertible, percentage of conversion price | | 98% | | | | | | | | |
2027 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument, principal amount | | | $ 1,150,000,000 | | | $ 1,150,000,000 | | $ 1,150,000,000 | | $ 1,150,000,000 |
Proceeds from issuance of convertible notes, net of issuance costs | | | $ 1,050,000,000 | | | | | | | |
Debt instrument, maturity date | | | May 01, 2027 | | | | | | | |
Debt instrument convertible, amortization period | | | | | | | | 4 years 7 months 6 days | | |
Cap price, net cost | | | | | | $ 86,800,000 | | $ 86,800,000 | | |
2027 Notes | Class A Common Stock | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Shares issued upon conversion of each $1000 principal amount | shares | | | 11.2042 | | | | | | | |
Debt instrument, convertible principal amount used in conversion rate | | | $ 1,000 | | | | | | | |
Conversion price per share | $ / shares | | | $ 89.25 | | | | | | | |
Cap price, per share | $ / shares | | | | | | $ 121.02 | | $ 121.02 | | |
2025 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument, principal amount | | | | $ 1,000,000,000 | | $ 284,105,000 | | $ 284,105,000 | | 284,105,000 |
Debt instrument, interest rate | | | | 0.25% | | | | | | |
Debt instrument, interest rate terms | | | | | | | | Interest is payable in cash semi-annually in arrears beginning on November 1, 2020 at a rate of 0.25% per year. | | |
Debt instrument, maturity date | | | | May 01, 2025 | | | | | | |
Proceeds from issuance of convertible notes, net of issuance costs | | | | $ 888,600,000 | | | | | | |
Interest payment beginning date | | | | Nov. 01, 2020 | | | | | | |
Debt instrument convertible, amortization period | | | | | | | | 2 years 7 months 6 days | | |
Cap price, net cost | | | | | | $ 100,000,000 | | $ 100,000,000 | | |
2025 Notes | Class A Common Stock | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Shares issued upon conversion of each $1000 principal amount | shares | | | | 46.1233 | | | | | | |
Debt instrument, convertible principal amount used in conversion rate | | | | $ 1,000 | | | | | | |
Conversion price per share | $ / shares | | | | $ 21.68 | | | | | | |
Cap price, per share | $ / shares | | | | | | $ 32.12 | | $ 32.12 | | |
2026 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument, principal amount | | | | | $ 1,265,000,000 | $ 838,482,000 | | $ 838,482,000 | | 838,493,000 |
Interest payment beginning date | | | | | Feb. 01, 2020 | | | | | |
Debt instrument, interest rate | | | | | 0.75% | | | | | |
Debt instrument, interest rate terms | | | | | | | | Interest is payable in cash semi-annually in arrears beginning on February 1, 2020 at a rate of 0.75% per year. | | |
Debt instrument, maturity date | | | | | Aug. 01, 2026 | | | | | |
Proceeds from issuance of convertible notes, net of issuance costs | | | | | $ 1,150,000,000 | | | | | |
Debt instrument convertible, amortization period | | | | | | | | 3 years 9 months 18 days | | |
Cap price, net cost | | | | | | $ 102,100,000 | | $ 102,100,000 | | |
2026 Notes | Class A Common Stock | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Shares issued upon conversion of each $1000 principal amount | shares | | | | | 43.8481 | | | | | |
Debt instrument, convertible principal amount used in conversion rate | | | | | $ 1,000 | | | | | |
Conversion price per share | $ / shares | | | | | $ 22.81 | | | | | |
Cap price, per share | $ / shares | | | | | | $ 32.58 | | $ 32.58 | | |
2025, 2026 and 2027, 2028 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Amortization of debt issuance costs | | | | | | $ 1,700,000 | 1,100,000 | $ 4,800,000 | 3,300,000 | |
Contractual interest expense | | | | | | 2,200,000 | 1,900,000 | 6,400,000 | 7,200,000 | |
Exchange Agreements | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Induced conversion expense related to convertible notes | | | | | | $ 0 | $ 4,500,000 | $ 0 | $ 41,500,000 | |
Shares issued under original terms of general conversion with net carrying amount | | | | | | | | | | $ 1,132,600,000 |
Exchange Agreements | Class A Common Stock | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Shares issued upon conversion of each $1000 principal amount | shares | | | | | | | | | | 52,400,000 |
Additional shares issued upon conversion | shares | | | | | | | | | | 700,000 |
Fair value of induced conversion exchange shares | shares | | | | | | | | | | 700,000 |
Exchange Agreements | 2025 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt conversion, principal amount | | | | | | | | | | $ 715,900,000 |
Exchange Agreements | 2026 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt conversion, principal amount | | | | | | | | | | $ 426,500,000 |
Revolving Credit Facility | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Credit facility expiration period | 5 years | | | | | | | | | |
Maximum borrowing capacity | $ 1,050,000,000 | | | | | | | | | |
Annual commitment fee | 0.10% | | | | | | | | | |
Amounts outstanding under the credit facility | $ 0 | | | | | | | | | |
Outstanding letters of credit | $ 32,400,000 | | | | | | | | | |
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Basis spread on variable interest rate (percentage) | 0.75% | | | | | | | | | |
Revolving Credit Facility | Sterling Overnight Index | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Basis spread on variable interest rate (percentage) | 0.7826% | | | | | | | | | |
Revolving Credit Facility | One Month Secured Overnight Financing Rate S O F R Overnight Index Swap Rate | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Credit facility expiration period | 1 month | | | | | | | | | |
Basis spread on variable interest rate (percentage) | 1% | | | | | | | | | |
Revolving Credit Facility | Miscellaneous | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Basis spread on variable interest rate (percentage) | 0.75% | | | | | | | | | |
Revolving Credit Facility | Overnight Funding Rate | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Basis spread on variable interest rate (percentage) | 0.50% | | | | | | | | | |
Initial Placement | 2028 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument, principal amount | | $ 1,300,000,000 | | | | | | | | |
Over-Allotment Option | 2028 Notes | | | | | | | | | | |
Debt Instrument [Line Items] | | | | | | | | | | |
Debt instrument, principal amount | | $ 200,000,000 | | | | | | | | |