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Amortized To Interest Expense Rate

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Debt instrument additional aggregate principal amount.

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The average effective interest rate during the reporting period.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

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The premium (cost) of a hedge, expensed during the period.

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The strike price on the price risk option contract such as a put option or a call option.

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Debt - Additional Information (Detail)						1 Months Ended		3 Months Ended
Debt - Additional Information (Detail)	Mar. 16, 2030 USD ($)	Mar. 20, 2024 Day	Mar. 05, 2021 USD ($)	Feb. 19, 2020	Mar. 26, 2019	Jun. 30, 2021 Day	Mar. 31, 2021 USD ($) $ / shares	Mar. 31, 2021 USD ($) Day $ / shares	Dec. 31, 2020 USD ($)	Apr. 30, 2018 USD ($)
Debt Instrument [Line Items]
Fair value of our indebtedness							$ 1,203,500,000	$ 1,203,500,000	$ 657,600,000
Fair Value, Inputs, Level 2 [Member]
Debt Instrument [Line Items]
Trading price per principal amount of notes								1,000
Debt instrument fair value of trading price								$ 1,000
Capped Calls [Member]
Debt Instrument [Line Items]
Derivative, initial strike price \| $ / shares							132.20	132.20
Derivative, initial cap price \| $ / shares							179.26	179.26
Derivative, premium paid							$ 45,000,000.0
Reduction to additional paid-in capital							(33,000,000.0)
Net of deferred tax impact							12,000,000.0	$ 12,000,000.0
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 575,000,000.0		$ 500,000,000.0				575,000,000.0	$ 575,000,000.0
Term loan debt maturity period								Mar. 15, 2026
Debt instrument percentage of aggregate principal amount	0.25%		0.25%					0.25%
Debt instrument additional aggregate principal amount	$ 75,000,000.0						$ 75,000,000.0	$ 75,000,000.0
Debt instrument bear interest rate							0.25%	0.25%
Net proceeds from deducting initial purchase discounts and other debt issuance costs			$ 561,800,000					$ 561,800,000
Debt instrument frequency of periodic payment								semiannually
Debt instrument payment terms								The Notes bear interest at a rate of 0.25% per year and interest is payable semiannually in arrears on March 15 and September 15 of each year, beginning on September 15, 2021.
Debt instrument payment beginning date								Sep. 15, 2021
Debt instrument common stock exceeds conversion price percentage								98.00%
Number of conversion price, consecutive trading days \| Day								10
Number of conversion price, consecutive business days \| Day								5
Trading price per principal amount of notes								$ 1,000
Debt instrument, interest rate during period								4.50%
Debt instrument, convertible, carrying amount of equity component							$ 108,600,000	$ 108,600,000
Total issuance costs							14,400,000	$ 14,400,000
Senior note, amortized interest rate								5.10%
Debt instrument fair value of trading price								$ 1,000
Convertible Senior Notes [Member] \| Liability Component [Member]
Debt Instrument [Line Items]
Total issuance costs							11,700,000	11,700,000
Net carrying amount							455,600,000	455,600,000
Convertible Senior Notes [Member] \| Equity Component
Debt Instrument [Line Items]
Total issuance costs							2,700,000	2,700,000
Net carrying amount							77,700,000	77,700,000
Deferred tax impact							28,200,000	28,200,000
Convertible Senior Notes [Member] \| Forecast [Member]
Debt Instrument [Line Items]
Number of conversion price trading days \| Day		20				20
Number of conversion price, consecutive trading days \| Day		30				30
Convertible Senior Notes [Member] \| Maximum [Member] \| Forecast [Member]
Debt Instrument [Line Items]
Debt instrument common stock exceeds conversion price percentage		130.00%				130.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity for letters of credit							300,000,000.0	$ 300,000,000.0	300,000,000.0	$ 300,000,000.0
Line of credit maturity date								Apr. 30, 2023
Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate description								Term Debt interest rate was reduced from LIBOR plus 3.00% to LIBOR plus 2.50%.
Accrued interest							$ 300,000	$ 300,000	$ 100,000
Senior Secured Credit Facility [Member] \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable interest rate				2.50%	3.00%
Term Debt [Member]
Debt Instrument [Line Items]
Debt instrument principal amount										$ 680,000,000.0
Term loan debt maturity period								Apr. 30, 2025
Debt instrument bear interest rate							2.60%	2.60%	2.60%