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v3.21.1

Debt - Narrative (Details) $ / shares in Units, shares in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
May 31, 2020 USD ($) $ / shares | Mar. 31, 2021 USD ($) day $ / shares shares | Dec. 31, 2020 USD ($)
Debt Instrument [Line Items] |  |  |
Proceeds from debt | $ 562,500,000 |  |
Convertible debt, conversion ratio |  | 0.0267187 |
Conversion price (in dollars per share) | $ / shares |  | $ 37.43 |
Convertible debt, equity component | $ 205,300,000 | $ 200,812,000 | $ 200,812,000
Closing share price (in dollars per share) | $ / shares |  | $ 70.26 |
If-converted value in excess of principal |  | $ 504,400,000 |
Remaining life, convertible debt |  | 50 months |
Shares covered by capped calls (in shares) | shares |  | 15.4 |
Purchases of capped calls related to convertible senior notes |  | $ 67,300,000 |
Class A common stock |  |  |
Debt Instrument [Line Items] |  |  |
Capped call, initial strike price (in dollars per share) | $ / shares | $ 37.43 |  |
Capped call, initial cap price (in dollars per share) | $ / shares | $ 57.58 |  |
Convertible senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt principal amount | $ 575,000,000.0 |  |
Face amount, additional principal issuable | $ 75,000,000.0 |  |
Interest rate | 0.75% |  |
Issuance cost, liability component | $ 8,000,000.0 |  |
Issuance cost, equity component | $ 4,500,000 |  |
Measurement Input, Effective Interest Rate | Convertible senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Measurement input |  | 0.100 |
Scenario One |  |  |
Debt Instrument [Line Items] |  |  |
Conversion requirement, threshold trading days | day |  | 20 |
Conversion requirement, threshold consecutive trading days | day |  | 30 |
Conversion requirement, threshold percentage of stock price trigger |  | 130.00% |
Scenario Two |  |  |
Debt Instrument [Line Items] |  |  |
Conversion requirement, threshold trading days | day |  | 5 |
Conversion requirement, threshold consecutive trading days | day |  | 5 |
Conversion requirement, threshold percentage of stock price trigger |  | 98.00% |
Scenario Three, Subsequent to May 20, 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Conversion requirement, threshold trading days | day |  | 20 |
Conversion requirement, threshold consecutive trading days | day |  | 30 |
Conversion requirement, threshold percentage of stock price trigger |  | 130.00% |
Redemption price, percentage |  | 100.00% |
Scenario Four, Fundamental Change |  |  |
Debt Instrument [Line Items] |  |  |
Redemption price, percentage |  | 100.00% |

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- Definition Adjustments To Additional Paid In Capital, Purchases Of Capped Calls Related To Convertible Debt + References No definition available. + Details
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- Definition Capped Call, Initial Cap Price + References No definition available. + Details
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- Definition Capped Call, Initial Strike Price + References No definition available. + Details
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- Definition Debt Instrument, Face Amount, Additional Principal Issuable + References No definition available. + Details
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- Definition Shares Covered By Capped Calls + References No definition available. + Details
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- Definition The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 + Details
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- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870 + Details
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- Definition Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(5)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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- Definition The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870 + Details
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- Definition Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870 + Details
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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. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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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. + References No definition available. + Details
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- Definition Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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- Definition Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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