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Employee Compensation Plans - Stock Appreciation Rights (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares |  | 12 Months Ended
--- | --- | ---
Jan. 11, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number |  | 2,282,846
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights unvested amount |  | 2,282,846
Total Number of OARs outstanding |  | 0
Total weighted average strike price |  | $ 23.75
Total weighted average remaining contractual life |  | 3 years 1 month 6 days
Total weighted average fair value per share |  | $ 10.91
Subsequent Event [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number Of Stock Appreciation Rights Granted | 639,050 |
January Five Two Thousand Eighteen [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number |  | 447,310
Strike price |  | $ 27.05
Remaining contractual life |  | 2 years
Fair value per share |  | $ 8.79
January Six Two Thousand Seventeen [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number |  | 378,020
Strike price |  | $ 18.90
Remaining contractual life |  | 1 year
Fair value per share |  | $ 13.37
January Six Two Thousand Sixteen |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number |  | 394,310
Strike price |  | $ 15.89
Remaining contractual life |  | 5 days
Fair value per share |  | $ 15.54
January Eleven Two Thousand Twenty |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number |  | 524,566
Strike price |  | $ 26.45
Remaining contractual life |  | 3 years
Fair value per share |  | $ 9.31
January Ten Two Thousand Twenty |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Outstanding Number |  | 538,640
Strike price |  | $ 27.54
Remaining contractual life |  | 4 years
Fair value per share |  | $ 9.14

X
- Definition Number of stock appreciation rights granted. + References No definition available. + Details
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- Definition The fair value per share of each stock appreciation rights award outstanding by grant date as of the balance sheet date. + References No definition available. + Details
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- Definition The number of each stock appreciation rights award outstanding as of the balance sheet date. + References No definition available. + Details
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- Definition The strike price of each stock appreciation rights award outstanding. + References No definition available. + Details
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- Definition The weighted average fair value per share of the total stock appreciation rights outstanding as of the balance sheet date. + References No definition available. + Details
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- Definition The weighted average strike price of the total stock appreciation rights outstanding as of the balance sheet date. + References No definition available. + Details
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