Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Option Indexed To Issuer's Equity

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- Definition

Debt Instrument, Convertible, Issuance Costs of Equity Component

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Debt Issuance Costs, Net, Liability Component

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Line of Credit Facility, Credit Sublimit

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Option Indexed to Issuers' Equity, Cap Price

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

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No definition available.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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No definition available.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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Amount of the fee that accompanies borrowing money under the debt instrument.

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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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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Face (par) amount of the original debt instrument that was repurchased.

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No definition available.

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

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Consideration given by issuer of convertible debt to provide an incentive for debt holders to convert the debt to equity securities. The expense is equal to the fair value of all securities and other consideration transferred in the transaction in excess of the fair value of securities issuable pursuant to the original conversion terms.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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No definition available.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Exercise or strike price stated in the contract for options indexed to the issuer's equity shares.

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The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Debt - Additional Information (Details) $ / shares in Units, shares in Millions				1 Months Ended		3 Months Ended
	Mar. 31, 2021 USD ($) day	Mar. 16, 2021 USD ($) shares	May 01, 2020 USD ($) $ / shares	Apr. 30, 2020 USD ($)	Aug. 31, 2018 USD ($) day $ / shares	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	May 07, 2021 USD ($)	Mar. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	May 31, 2020 USD ($)
Debt Instrument [Line Items]
Proceeds from convertible debt						$ 587,100,000	$ 0
Induced conversion expense						2,740,000	0
Letter of Credit
Debt Instrument [Line Items]
Long-term line of credit	$ 7,600,000					7,600,000
Convertible Debt
Debt Instrument [Line Items]
Induced conversion expense						2,740,000	0
Debt issuance costs, net	$ 21,644,000					21,644,000				$ 8,059,000
Convertible Debt \| Debt Covenant One
Debt Instrument [Line Items]
Threshold trading days \| day	20				20
Threshold consecutive trading days \| day	30				30
Threshold percentage of stock price trigger	130.00%				130.00%
Convertible Debt \| Debt Covenant Two
Debt Instrument [Line Items]
Threshold trading days \| day					5
Threshold consecutive trading days \| day					10
Threshold percentage of stock price trigger					98.00%
Convertible Debt \| Debt Covenant Three
Debt Instrument [Line Items]
Threshold percentage of stock price trigger					130.00%
Redemption price, percentage					100.00%
2023 Notes \| Call Option
Debt Instrument [Line Items]
Strike price (in dollars per share) \| $ / shares					$ 41.59
Cap price (in dollars per share) \| $ / shares			$ 63.98
Equity component of convertible debt, subsequent adjustments					$ 26,900,000
2023 Notes \| Convertible Debt
Debt Instrument [Line Items]
Face amount					230,000,000.0
Proceeds from convertible debt					223,100,000
Shares issued upon conversion (in shares) \| shares		2.2
Repurchased face amount		$ 182,600,000
Induced conversion expense						2,740,000	$ 0
Carrying amount of equity component					53,800,000
Debt issuance costs, net	$ 778,000				6,900,000	778,000				3,009,000
Liability component					5,300,000
Issuance costs of equity component					$ 1,600,000
2023 Notes \| Convertible Debt \| Debt Covenant Three
Debt Instrument [Line Items]
Threshold trading days \| day					20
Threshold consecutive trading days \| day					30
Redemption price, percentage					100.00%
2025 Notes \| Call Option
Debt Instrument [Line Items]
Strike price (in dollars per share) \| $ / shares			61.02
Cap price (in dollars per share) \| $ / shares			$ 93.88
Equity component of convertible debt, subsequent adjustments			$ 27,300,000
2025 Notes \| Convertible Debt
Debt Instrument [Line Items]
Face amount											$ 230,000,000.0
Proceeds from convertible debt					$ 222,800,000
Induced conversion expense						0
Carrying amount of equity component			48,300,000
Debt issuance costs, net	5,957,000		7,200,000			5,957,000				$ 5,050,000
Liability component			5,700,000
Issuance costs of equity component			$ 1,500,000
2027 Notes \| Call Option
Debt Instrument [Line Items]
Strike price (in dollars per share) \| $ / shares			$ 103.38
Cap price (in dollars per share) \| $ / shares			$ 159.04
Equity component of convertible debt, subsequent adjustments			$ 76,000,000.0
2027 Notes \| Convertible Debt
Debt Instrument [Line Items]
Face amount	600,000,000.0					600,000,000.0			$ 600,000,000.0
Proceeds from convertible debt					$ 585,000,000.0
Induced conversion expense						0
Debt issuance costs, net	$ 14,909,000					$ 14,909,000			$ 15,000,000.0
Credit Agreement \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				2.50%
Credit Agreement \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate				0.00%
Credit Agreement \| Minimum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, interest rate floor				1.00%
Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Current borrowing capacity				$ 30,000,000.0
Credit sublimit				15,000,000.0
Fee amount				$ 400,000
Commitment fee percentage				0.20%
Credit Agreement \| Revolving Credit Facility \| Subsequent Event [Member]
Debt Instrument [Line Items]
Current borrowing capacity								$ 50,000,000.0
Credit Agreement \| Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 70,000,000.0