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Stockholders' Equity (Deficit) - Sale of Stock (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 1 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 11, 2021 | Apr. 03, 2018 | Feb. 28, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Common stock, par value (in dollars per share) |  |  |  | $ 0.01 | $ 0.01
Equity Offering |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Newly issued shares of common stock in registered public offering (shares) |  | 5,300,000 |  |  |
Common stock, par value (in dollars per share) |  | $ 0.01 |  |  |
Price per share (usd per share) |  | $ 175 |  |  |
Proceeds |  | $ 915.2 |  |  |
Underwriting discounts |  | 11.7 |  |  |
Offering expenses |  | $ 0.6 |  |  |
Equity Offering | Subsequent Event |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Newly issued shares of common stock in registered public offering (shares) | 7,475,000 |  |  |  |
Common stock, par value (in dollars per share) | $ 0.01 |  |  |  |
Price per share (usd per share) | $ 115.00 |  |  |  |
Proceeds | $ 842.4 |  | $ 842.5 |  |
Underwriting discounts | $ 17.2 |  |  |  |

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- Definition Face amount or stated value per share of common stock. + 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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Cash received on stock transaction after deduction of issuance costs. + References No definition available. + Details
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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
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- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References No definition available. + 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 Sale of Stock, Underwriting Discounts + References No definition available. + Details
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- Details
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- Details
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