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Long-term Debt - Additional Information (Detail)			1 Months Ended				3 Months Ended		4 Months Ended	12 Months Ended
	May 12, 2020 USD ($)	Sep. 16, 2019 USD ($)	Jul. 31, 2022 USD ($) shares	Jul. 31, 2021 USD ($) shares	Jun. 30, 2021 USD ($) shares	Jan. 31, 2021 USD ($) shares	Sep. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($) Days $ / shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)	Sep. 11, 2019 USD ($) CounterParty $ / shares
Debt Instrument [Line Items]
Aggregate principal amount converted											$ 98,086,000	$ 328,017,000
Loss on conversion of debt											32,890,000	100,589,000
Forfeiture of accrued interest in exchange of convertible notes											1,287,000	4,171,000
Debt interest expense											5,707,000	$ 12,050,000	$ 3,583,000
Amortization of debt issuance costs										$ 297,000	$ 459,000
Long-term debt										$ 93,033,000
Common Stock [Member]
Debt Instrument [Line Items]
Shares issued | shares											3,073,000	10,065,000
2019 Convertible Notes [Member]
Debt Instrument [Line Items]
Premium paid for capped call transactions												$ 28,400,000
2020 Convertible Notes [Member]
Debt Instrument [Line Items]
Premium paid for capped call transactions												$ 43,100,000
Capped Call Transactions [Member]
Debt Instrument [Line Items]
Number of counterparties | CounterParty														2
Initial conversion price | $ / shares														$ 39.4625
Initial cap price | $ / shares														$ 63.14
Convertible Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Debt instrument, stated percentage		3.50%
Debt instrument, due and payment description										The Convertible Notes are senior unsecured obligations of the Company and bear interest at a rate of 3.5% per year payable semiannually in arrears on March 15 and September 15 of each year, beginning on March 15, 2020.
Debt instrument, frequency of periodic payment										semiannually
Maturity date		Sep. 15, 2026
Threshold trading days | Days										20
Threshold consecutive trading days | Days										30
Threshold percentage of stock price trigger										130.00%
Redemption period, start date										Sep. 20, 2023
Redemption price, percentage										100.00%
Aggregate principal amount converted					$ 700,000				$ 0
Aggregate principal amount converted into shares | shares					18,775
Long-term debt									92,736,000	$ 93,033,000	$ 92,736,000
Convertible Senior Notes Due 2026 [Member] | Prior to March 15, 2026 Convertible [Member]
Debt Instrument [Line Items]
Threshold trading days | Days										20
Threshold consecutive trading days | Days										30
Threshold percentage of stock price trigger										130.00%
Trading price per principal amount										$ 1,000
Convertible Senior Notes Due 2026 [Member] | Prior to March 15, 2026 Convertible [Member] | Maximum [Member]
Debt Instrument [Line Items]
Threshold percentage of stock price trigger										98.00%
Convertible Senior Notes Due 2026 [Member] | Common Stock [Member]
Debt Instrument [Line Items]
Terms of conversion										The Convertible Notes are convertible into shares of the Company’s common stock at an initial conversion rate of 25.3405 shares per $1,000 principal amount of Convertible Notes (equivalent to an initial conversion price of approximately $39.4625 per share of common stock).
Conversion ratio										0.0253405
Conversion price | $ / shares										$ 39.4625
Convertible Senior Notes Due 2026 [Member] | 2019 Convertible Notes [Member]
Debt Instrument [Line Items]
Net proceeds from the sale of the notes		$ 212,900,000
Payment of convertible debt discounts and commissions		6,600,000
Payment of convertible debt offering expenses		500,000
Payments of transactions cost		28,400,000
Debt instrument effective interest rate														10.50%
Debt instrument convertible carrying amount of liability component														$ 145,100,000
Debt discount														74,900,000
Debt issuance costs														7,100,000
Convertible Senior Notes Due 2026 [Member] | 2019 Convertible Notes [Member] | Exchange Agreements [Member]
Debt Instrument [Line Items]
Conversion ratio				0.0253405		0.0253405
Debt issuance costs				$ 4,100,000		$ 3,300,000
Increase (decrease) in net debt				197,000,000.0		122,800,000
Aggregate principal amount converted				$ 201,100,000		$ 126,100,000
Increase in shares outstanding | shares				5,992,217		3,906,869
Shares issued | shares				5,097,166		3,196,172
Additional shares issued | shares				895,051		710,697
Additional shares issued for settlement of debt issuance cost paid | shares				78,419		69,491
Loss on conversion of debt							$ 61,100,000	$ 39,500,000
Loss on conversion of debt related to additional shares issued							55,900,000	36,400,000
Additional amount issued in payment of issuance costs							$ 5,200,000	$ 3,100,000
Forfeiture of accrued interest in exchange of convertible notes						$ 1,700,000
Convertible Senior Notes Due 2026 [Member] | 2019 Convertible Notes [Member] | Common Stock [Member] | Exchange Agreements [Member]
Debt Instrument [Line Items]
Aggregate principal amount converted into shares | shares						3,906,869
Convertible Senior Notes Due 2026 [Member] | 2019 Convertible Notes [Member] | Liability Component [Member]
Debt Instrument [Line Items]
Debt issuance costs														4,700,000
Convertible Senior Notes Due 2026 [Member] | 2019 Convertible Notes [Member] | Equity Component [Member]
Debt Instrument [Line Items]
Debt issuance costs														$ 2,400,000
Convertible Senior Notes Due 2026 [Member] | 2020 Convertible Notes [Member]
Debt Instrument [Line Items]
Net proceeds from the sale of the notes	$ 322,900,000
Payment of convertible debt discounts and commissions	5,700,000
Payment of convertible debt offering expenses	300,000
Payments of transactions cost	$ 43,100,000
Debt instrument effective interest rate	10.50%
Debt instrument convertible carrying amount of liability component	$ 204,500,000
Debt discount	95,500,000
Debt issuance costs	6,000,000.0
Convertible Senior Notes Due 2026 [Member] | 2020 Convertible Notes [Member] | Exchange Agreements [Member]
Debt Instrument [Line Items]
Conversion ratio			0.0253405
Debt issuance costs			$ 1,300,000
Increase (decrease) in net debt			96,800,000
Aggregate principal amount converted			$ 98,100,000
Shares issued | shares			2,485,548
Additional shares issued | shares			541,470
Additional shares issued for settlement of debt issuance cost paid | shares			46,132
Loss on conversion of debt			$ 32,900,000
Loss on conversion of debt related to additional shares issued			30,400,000
Additional amount issued in payment of issuance costs			$ 2,500,000
Convertible notes held in treasury									$ 425,400,000	$ 425,400,000	$ 425,400,000
Convertible Senior Notes Due 2026 [Member] | 2020 Convertible Notes [Member] | Common Stock [Member] | Exchange Agreements [Member]
Debt Instrument [Line Items]
Aggregate principal amount converted into shares | shares			3,027,018	5,992,217
Convertible Senior Notes Due 2026 [Member] | 2020 Convertible Notes [Member] | Liability Component [Member]
Debt Instrument [Line Items]
Debt issuance costs	3,700,000
Convertible Senior Notes Due 2026 [Member] | 2020 Convertible Notes [Member] | Equity Component [Member]
Debt Instrument [Line Items]
Debt issuance costs	2,300,000
Convertible Senior Notes Due 2026 [Member] | 2019 and 2020 Convertible Notes [Member] | Exchange Agreements [Member]
Debt Instrument [Line Items]
Aggregate principal amount converted				$ 201,100,000
Forfeiture of accrued interest in exchange of convertible notes				$ 2,500,000
Convertible Senior Notes Due 2026 [Member] | Convertible Senior Notes [Member] | Exchange Agreements [Member]
Debt Instrument [Line Items]
Increase in shares outstanding | shares			3,027,018
Convertible Senior Notes Due 2026 [Member] | Private Offering [Member] | 2019 Convertible Notes [Member]
Debt Instrument [Line Items]
Principal amount		$ 220,000,000.0
Convertible Senior Notes Due 2026 [Member] | Private Offering [Member] | 2020 Convertible Notes [Member]
Debt Instrument [Line Items]
Principal amount	$ 300,000,000.0

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