Share-based Compensation - Additional Information (Details) shares in Millions, $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2021
USD ($)
item
shares
|
Dec. 31, 2020
USD ($)
|
Dec. 31, 2019
USD ($)
|
|
Share-based compensation Expense | |||
Share based compensation cost capitalized | $ | $ 2.3 | $ 2.6 | $ 1.5 |
Number of share-based compensation plan under which awards are currently made | 1 | ||
Number of share-based compensation plan under which no further awards will be made | 2 | ||
2018 Plan | |||
Share-based compensation Expense | |||
Shares of common stock available for issuance | shares | 13.8 | ||
Ratio of awards other than stock options counted against the total number of shares available for issuance | 1.8 |