Long-Term Debt - Convertible Senior Notes due 2024 - Additional Information (Detail) |
1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | ||||||||
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Mar. 15, 2024
USD ($)
$ / shares
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Aug. 31, 2023
USD ($)
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Mar. 31, 2018
USD ($)
$ / shares
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Sep. 30, 2024
USD ($)
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Mar. 31, 2024 |
Sep. 30, 2023
USD ($)
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Dec. 31, 2022
USD ($)
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Sep. 30, 2024
USD ($)
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Sep. 30, 2023
USD ($)
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Dec. 31, 2022
USD ($)
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Dec. 31, 2023
USD ($)
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Jan. 01, 2022
USD ($)
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| Debt Instrument [Line Items] | ||||||||||||
| Outstanding principal amount | $ 2,337,500,000 | $ 2,337,500,000 | ||||||||||
| Long-term debt | 2,261,200,000 | 2,261,200,000 | $ 2,562,400,000 | |||||||||
| Paid-in capital in excess of par value | 267,000,000 | 267,000,000 | 233,900,000 | |||||||||
| Retained earnings (accumulated deficit) | (985,900,000) | (985,900,000) | (1,062,300,000) | |||||||||
| Gain on extinguishment of debt | (10,500,000) | $ 1,000,000 | ||||||||||
| Interest expense | $ 59,400,000 | $ 41,700,000 | $ 161,400,000 | 124,600,000 | ||||||||
| 2.625% Convertible Senior Notes Due 2024 [Member] | ||||||||||||
| Debt Instrument [Line Items] | ||||||||||||
| Aggregate principal amount of senior notes issued | $ 65,500,000 | $ 550,000,000 | $ 277,500,000 | $ 277,500,000 | ||||||||
| Convertible notes, interest rate | 2.625% | 2.625% | 2.625% | |||||||||
| Line of credit maturity | Mar. 15, 2024 | Mar. 15, 2024 | Mar. 15, 2024 | |||||||||
| Convertible notes, conversion feature | On and after December 15, 2023, holders could convert their 2024 Convertible Notes at any time, regardless of the circumstances. In December 2021, the Company made an irrevocable election under the indenture governing the 2024 Convertible Notes to require the principal portion of the 2024 Convertible Notes to be settled in cash and any excess in shares or cash. | |||||||||||
| Principal amount of convertible notes | $ 1,000,000,000 | $ 1,000,000,000 | ||||||||||
| Convertible notes conversion rate | 160,467.0000 | 16.0056 | ||||||||||
| Convertible notes conversion price | $ / shares | $ 62.32 | $ 62.48 | ||||||||||
| Outstanding principal amount | $ 550,000,000 | 197,000,000 | ||||||||||
| Amortization of deferred financing costs | 300,000 | 200,000 | 800,000 | |||||||||
| Long-term debt | 410,100,000 | $ 59,100,000 | ||||||||||
| Paid-in capital in excess of par value | $ 139,900,000 | |||||||||||
| Effective interest rate on convertible notes | 8.40% | 3.10% | ||||||||||
| Deferred financing costs | $ 12,900,000 | |||||||||||
| Deferred financing costs recorded as additional paid-in-capital in excess of par value | 3,300,000 | |||||||||||
| Additional Paid in Capital | $ 136,700,000 | |||||||||||
| Repurchase of convertible notes | 287,500,000 | |||||||||||
| Debt instrument , Purchase Price | 65,100,000 | 274,900,000 | ||||||||||
| Accrued interest | 800,000 | 1,700,000 | 1,700,000 | |||||||||
| Reduction to long term debt representing carrying value of convertible debt | $ 197,000,000 | $ 65,300,000 | $ 286,000,000 | |||||||||
| Gain on extinguishment of debt | 1,000,000 | $ 12,800,000 | ||||||||||
| Repayment of debt | 197,000,000 | |||||||||||
| Accrued interest on debt | $ 2,600,000 | |||||||||||
| Unamortized debt discount and debt issuance costs | 200,000 | |||||||||||
| Convertible senior notes, carrying value | $ 0 | 0 | 196,800,000 | |||||||||
| Fair value of notes | $ 196,200,000 | |||||||||||
| Interest expense | $ 1,900,000 | $ 1,200,000 | $ 5,700,000 | |||||||||
| 2.625% Convertible Senior Notes Due 2024 [Member] | Debt Issuance Costs [Member] | ||||||||||||
| Debt Instrument [Line Items] | ||||||||||||
| Deferred financing costs | $ 9,600,000 | |||||||||||
| ASU 2020-06 [Member] | ||||||||||||
| Debt Instrument [Line Items] | ||||||||||||
| Retained earnings (accumulated deficit) | $ 77,600,000 | |||||||||||
| X | ||||||||||
- Definition Additional paid-in capital common stock deferred finance costs. No definition available.
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- Definition Reduction to long term debt representing carrying value of convertible debt No definition available.
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- Definition Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense attributable to debt issuance costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Description of conversion terms for debt instrument. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of unamortized debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount at purchase price of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), purchased with credit deterioration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Gross amount of debt extinguished. No definition available.
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| X | ||||||||||
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest payable on debt, including, but not limited to, trade payables. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Fair value portion of notes payable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of accumulated undistributed earnings (deficit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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