Share-based Compensation and Equity - Equity Award Modifications (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise prices (in dollars per share)	$ 9.89	$ 17.85	$ 18.18	$ 18.79
Number of stock options outstanding (in shares)	2,163	3,428	5,388	9,020
Stock compensation expense	$ 10,172	$ 13,298	$ 12,994
Stock compensation expense not yet recognized, options	$ 0

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost to be recognized for option under share-based payment arrangement.

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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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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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