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Subsequent Events (Details) £ / shares in Units, $ / shares in Units, £ in Millions | Apr. 20, 2021 GBP (£) | Apr. 15, 2021 USD ($) $ / shares | Apr. 15, 2021 GBP (£) £ / shares | Mar. 31, 2021 USD ($) | Feb. 10, 2021 USD ($) | Feb. 09, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 11, 2019 USD ($) | Sep. 25, 2018 USD ($)
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Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Common stock issued |  |  |  | $ 3,100,000 |  |  | $ 3,100,000 |  |
Derivative, notional amount |  |  |  |  |  |  |  | $ 185,000,000 |
Subsequent event | Currency forward contract A |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Derivative, notional amount | £ | £ 439.0 |  |  |  |  |  |  |  |
Subsequent event | Currency forward contract B |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Derivative, notional amount | £ | £ 9.6 |  |  |  |  |  |  |  |
Scapa | Subsequent event |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Share price | (per share) |  | $ 2.96 | £ 2.15 |  |  |  |  |  |
Exchange rate |  | 1 | 1 |  |  |  |  |  |
Common stock issued |  | $ 568,900,000 | £ 412.6 |  |  |  |  |  |
Term loan B |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  | $ 350,000,000 |  |  |  |
Revolving credit facility - U.S. dollar borrowings | Revolving Credit Facility |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Revolving line of credit |  |  |  |  |  | $ 325,000,000.0 |  |  | $ 500,000,000.0

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